Friction Drive Telescope Mount


pdf), Text File (. introducing Gemini G53f friction drive mount for telescopes, designed for astrophotography. Evidently the friction drive was sufficient, and reliable. Mount the tube on the declination shaft and secure the declination shaft in a horizontal position. The design of the unique GTD E. Here is a view of the platform without the telescope sitting on it. Custom made telescope mount for Meade 16" ACF SCT, showing slewing, guider pulse testing, and some images from first light. Spring engaged, air released servo motor brakes mount to the shaft end of servo motors up to 20 horsepower. Not directly but to drive a generator that would supply electrical power to the mount (sorry about that but I need to make sure that all pages on this site have some astronomical reference ;} Perhaps a "SteamPunk" telescope application???. So we decided to rebuild the two friction wheels (RA and DEC axes) completely and scrap the old ones. When using a TDM (Telescope Drive Master), this can be reduced to below +/-0. ) and also including the popular Chinese clones of the Vixen mounts, such as the Synta & Jinghua CG-5, EQ-4, HEQ-5, HD, LXD-55, LXD-75, etc. Normally the parking position is when the balance weights point downwards and telescope pointing towards North pole (or South pole). Offered in Alt-Az or Equatorial configuration. First to use Baltic Birch/ApplePly plywood construction. Disturbances Applied to Axis of Telescope Installed on the Deck of a Ship - Free download as PDF File (. On the left, the computers that control the telescope and the CCD camera can be seen. Attach the Orion EQ-3M Dual-Axis Electronic Telescope Drive to a compatible Orion or Celestron equatorial mount and you can track celestial objects automatically, without needing to touch. I accomplished this by purchasing three standard 3/8-inch diameter by 1-inch long course thread bolts, with washers, from Home Depot. And not only is it compact - it's more accurate than ever. The combination of the reflex site and low-friction Dobson mount makes for a very intuitive telescope that the kids greatly enjoy using. Based on our Friction Drive System (without gears) is the perfect solution for amateur or professional astrophotographers working in the field and for small to medium. The primary drive mechanism is a 304 stainless steel friction drive (11" diameter) The polar shaft is 5. AstroTrac 360 punches above its weight at just 5 kg (11 lb) in GEM configuration. Three design requirements received special attention: (1) a fast slewing telescope mount, (2) a CCD camera with a high quantum efficiency image sensor, and (3) a simpler optical design. Heavy Duty belt-drive system minimizes backlash while providing smooth motor operation under heavy loads Spring-loaded brass worm wheel and stainless steel worm gear reduce friction and provide optimum gear mesh; Internal cabling for worry-free remote operation. The design of this unique product is based on the following important concepts. A good example is my 30-inch Cassegrain mount which has a 20" Byers drive in RA, with it's worm mounted in ball-type bearings, which I was surprised to find when I purchased it. to connect TDM to the. The telescope impacts visual detection differently depending on the type of object. The Questar mount is unique in that it uses a form of roller friction drive on both axis. The worm gear fits over the end of a polar shaft, and it and the end of the polar housing are grooved to form ball bearing races. I picked up an old DS2000 mount for next to nothing. Visual PE is not apparent even at high magnification using our mount, gears, worm mounting, electronics and software. With a timing belt drive you reduce the backlash. All-new ergonomic adjustment knobs with reduced friction for smooth and easy positioning under full loads. In addition to direct drive modules, also in development are modular friction drive components which can be used with telescopes ranging from small consumer telescopes to observatory class instruments weighing up to 1,000 lbs. It goes without saying that the mount drive control is the key technique which affects the telescope’s resolution and speed mostly. Here is a picture of the original as it was delivered. Please note that these specifications are sub-ject to change without notice and stated for the Losmandy GM 8 mount with the standard accessories. The first telescope i built was an eq-fork mount - sorry no pictures of it - it was in 1983! It was undriven, though I had plans to add a sector ra drive. Perfect for viewing the night sky, you won't believe the depth and clarity you will see. Offered in Alt-Az or Equatorial configuration. Levenhuk Skyline 70x900 EQ Telescope has a more stable mount and smooth navigation, but the objective lens diameter is smaller. * Mount and Wedge. You can also equip the mount with Celestron’s “Logic Drive” for hands-free, motorized tracking. The camera is now called the Automated Patrol Telescope (A. Telescope mount features dual slow-motion controls and 360-degree azimuth adjustment, for easy manual tracking of celestial objects for extensive viewing. 8) Meade ETX/ ETX-90EC (90 mm Maksutov-Cassegrain, 8X21 CI finder, RA drive, 26 mm Plossl, $595+$20 shipping) "That thing is ssoooo cute!!" Wherever the ETX goes. the mount which is caused by inaccuracy of of worm. This thesis describes the servo control system which was developed to control the motion of the telescope. QHYCCD QHY290M Monochrome COLDMOS Camera Back-illuminated (BSI) CMOS Sensor The QHY290 uses an extremely sensitive BSI CMOS sensor, the Sony IMX290. This telescope also uses a 6×30 Straight-View Finderscope, a tension control handle, and a floor-based manual Alt-AZ mount. the Shane 3-meter. Mesu Mount 200 was purchased new by me in October 2017 and has been a solid piece of equipment. 1 Drive torque 23 5. Even a slight breeze can give you big problems with a mount that is too small for the telescope. Stay tuned with Gemini Telescope Design. The telescope mount is an equatorial fork with a friction drive system, and it allows fully programmable tracking speeds with a typical range of 15'' s-1 and an accuracy of ±5''hr-1. The Bresser Messier 10" Dobsonian Telescope builds on the success of the smaller 8" model to deliver a telescope with nearly double the light gathering power. And not only is it compact - it's more accurate than ever. The Advanced Polaris Telescope Mount has slow motion RA and DEC controls for manual control. Lots of help for converting a fork mount. For many years I've enjoyed imaging with an old second hand Meade LXD55 telescope mount. However, you need a good solid tripod to carry the weight and take into account the axes of movement of the telescope if you want to use it for observing planets and the like. Heavy Duty belt-drive system minimizes backlash while providing smooth motor operation under heavy loads Spring-loaded brass worm wheel and stainless steel worm gear reduce friction and provide optimum gear mesh; Internal cabling for worry-free remote operation. Spring-loaded brass worm wheel and stainless steel worm gear reduce friction and provide optimum gear mesh. An alt-az mount moves in altitude (up and down) on a horizontal axis and in azimuth (left and right) on a vertical axis like a gun turret on a tank. Can be upgraded to absolute encoders & lifetime warranty on the drive. About Celestron CGX Telescope The CGX 800 Schmidt-Cassegrain Telescope features Celestron's premium StarBright XLT coated optics and the all-new state of the art CGX computerized equatorial mount. The Mountain Instruments (MI)-250 Go-To is a rock solid German equatorial mount that features a 7. Springloaded worm assembly for zero backlash: Altitude Drive: Ø120mm bronze worm gear drive. The mount is designed to carry 100 kg (this is enough for a 500 mm catadioptric or a 200 mm refractor). The drive system should slew at 80-90 deg. However friction drive has its own deficiencies, such as slippage and creepage. Due to the greater power of this motor, the friction drive loses control. Celestron's newly designed CGX-L Computerized Equatorial Mount is the latest addition to their fully computerized equatorial mount series. MOFOD Fork Mount is the ideal solution for demanding astronomy applications (public, school, society or professional observatories). This is a NEW BYERS 11-1/8" diameter -- 442-tooth Telescope Drive, With Spring-Loaded Slip-Clutch, Bored To Fit A 3. The GM 4000 HPS is one of the most viable mounts produced in series. The telescope mount is an equatorial fork with friction roller drives. Do you want to be able to locate over. "Choosing Your First Telescope" with J. The top is 24 inches square. Linear Telescope Equatorial Mount No wear, no frictions! No wearing effects since no relevant frictions occur. Order today from Ontario Telescope and Accessories. Hopkins in Arizona. On the first night I messed up polar alignment because I did not purchase the polar scope (I was too cheap and did not want to spend. The TTS-160 Panther telescope mount head is the heart of the highly flexible and configurable mount system. The field lens and the eye lens are both contained in the telescope's eyepiece. Stay safe and healthy. 5 pixels (0. The special wear resistant design maintains performance over time. 2 1/2 to 3 1/2 inch refractors, alt-az and equatorial mounts, polarizing solar eyepieces. The best computerized GoTo Telescope is the one that you will use the most. This isn't your ordinary altazimuth mount head. (it is only a matter of time before this statement is pointed out as false too, so I'll anticipate that…. Even a slight breeze can give you big problems with a mount that is too small for the telescope. However friction drive has its own. In addition, the drive stiffness and control bandwidth must be sufficient to guarantee the telescope positioning in the presence of wind or other mechanical perturbations. 2 optical design; Rare-earth glass for images free of false color, coma, and field curvature; 43. I already have a 114/900 celestron on a eq1 mount w/motor drive (just like yours). "Rapid adjustment in right ascension is effected by means of a separate 1/4 h. " These are not words one hears applied to a goto smooth-tracking EQ mount. Small ecological footprint, achieved by using low waste factor tecnologies, like 3D printing, laser and waterjet cutting. New Listing iOptron SkyTracker Pro Camera Mount with Polar Scope - (Mount Only) - #3322. The shaft diameter is 140mm. Very small guiding correction impulses may remain left unnoticed until the drive train has built up enough torque to cause a sudden „jump“ (an arc second-sized correction overshoot). Key Features. Linear Telescope Equatorial Mount No wear, no frictions! No wearing effects since no relevant frictions occur. ) and master polar alignment of this new friction drive mount made by Gemini Telescope Design in Hungary. Ensure gear on motor meshes with the shaft gear assembly. A belt driven motor minimizes backlash but remains smooth even when handling a large telescope. Attach the included EQ-3M Telescope Drive's precision mini-motor onto the AstroView EQ Mount to track celestial objects automatically. depending on the intended use. First to use thin etched virgin teflon. This tracking camera mount looks and acts differently than all of the other star trackers I have previously reviewed, including the wildly popular models from iOptron. Since 1988, our clients experience an unmatched customer service. PlaneWave Instruments is proud to introduce its new L-Series direct drive mount system. Our goal with AstroTrac 360 was to do the impossible: engineer a full‑size experience into the smallest, lightest telescope mount possible. Celestron's newly designed CGX-L Computerized Equatorial mount is the latest addition to our fully computerized equatorial mount series. Choose from a range of mount designs and mounting mechanisms. Spring-loaded brass worm wheel and stainless steel worm gear reduce friction and provide optimum gear mesh. motor, which runs in either direction as desired. No gears are used. The world-wide shipping cost is $55 via surface and $95. Celestron’s engineering team applied their years of experience designing German Equatorial mounts to the all-new CGX EQ, a culmination of all the advancements made to our technologies, value, and ease-of-use. Please practice hand-washing and social distancing, and check out our resources for adapting to these times. 75") features center-hinged leg braces for quick set-up and take-down and includes a removable high-walled accessory tray to keep telescope eyepieces and. com About PETERSON ENGINEERING astronomy product MEADE TELESCOPE UPGRADES, REFINEMENTS & REPAIRS VIEW MEADE UPGRADES BINOCULAR MOUNT KIT VIEW BINOC MOUNT TELESCOPE COVER VIEW PETE’S SCOPE BAGGIE Most orders ship same day. Capable of carrying Celestron’s largest optical tubes with ease, CGX-L is designed for backyard observatories and remote imagers looking for exceptional load capacity to weight ratio, compact design, and innovative features that fully support large. I would assume that they required goodly torque, but obviously don't have numbers. Telescope specifications Diameter: 0. telescopes and to have very Where the telescope pivots is the smooth motion in both axes. MOTODEC is a battery operated hand control with an electric declination motor providing vibration-free, direct-drive declination adjustments necessary for visual and photographic use. The design of the unique GTD E. Internal cabling for worry-free remote operation. Instrument shown: 1. mesu-optics. 5 arc seconds. diameter friction drive in RA and 28 in. HEIDENHAIN offers the largest direct drive motor range on the market via ETEL. Exceptional load capacity to weight ratio Additional Aux accessory ports and autoguider port on the Dec axis for better cable management Larger. The Celestron CGX-L Computerized Equatorial Mount is the extra heavy-duty version of the innovative, accurate, and stable CGX! The CGX-L has been designed with an even better load capacity to weight ratio, and is capable of handling an OTA and other astronomical equipment weighing a total of 75 pounds. If you’re shooting with a 400 mm camera lens or a small telescope, leave the counterweights at home. It requires some minor sanding to get things to fit. Altazimuth mount: An equatorial telescope mount with clock drive was left out of the design. An altazimuth telescope's drive rates vary continuously, When driving the mount the motors prefer it if in today's epoch coordinates. A plurality of balls are placed in the races to constitute a ball bearing so that the. This paper introduces the structure design and. It is based on a system of ball bearings rolling between two surfaces while housed within a rotating bushing. 8, 2013 Title 29 Labor Part 1910 (§ 1910. new and innovative friction bearings with adjustable resistance for altitude adjustment. can also be made to order or just. The planetary reduction drive is often used to enhance the fine-tuning control of a variable capacitor. 5 meters, and a slit 1. Please specify your requested options in your payment for the deposit. Most astronomical telescopes use eyepieces with a 1 1/4" barrel diameter, although many amateur observers with larger telescopes designed for viewing dim galaxies at relatively low magnification now use eyepieces with a 2" barrel diameter. Type: Equatorial. The second stage is an internal friction drive. Can lift it with one hand. Disturbances Applied to Axis of Telescope Installed on the Deck of a Ship - Free download as PDF File (. The telescope has a 4m aperture primary mirror, however due to the off axis nature of the optical layout, the telescope mount has proportions similar to an 8 meter class telescope. Consequently, a drive in the telescope has alternately both functions. Celestron's newly designed CGX-L Computerized Equatorial mount is the latest addition to our fully computerized equatorial mount series. Also problems can occur when using a poncet mount: when the azimuth bearings have to much friction, it will be possible that the drive sector slides over the driveroller when moving the telescope in azimuth. Truss Telescopes. The SynScanTM AZ hand control allows you point your telescope at a specific object, or even tour the night sky at the touch of a button!!. Attach the included EQ-3M Telescope Drive's precision mini-motor onto the AstroView EQ Mount to track celestial objects automatically. The "eyepiece tray" is lightweight plastic and is worth more for its help dampening vibrations when moving or focusing a telescope. (This mail from my Telescope FAQs Page explains how the gear ratios were determined. PULSAR GoTo Controllers. The world-wide shipping cost is $55 via surface and $95. Though the telescope itself was complete and even came with its original eyepieces, the mount was missing several important parts. Drive System: The spring loaded anti-backlash mechanism of the worm drive delivers near zero backlash at the telescope. All-new ergonomic adjustment knobs with reduced friction for smooth and easy positioning under full loads. 2 optical design; Rare-earth glass for images free of false color, coma, and field curvature; 43. The mount is based on a friction drive system which is very stiff and efficient, find more Typically telescope structures are stiffer than the drive. Although there are a number of GEM like direct drive mounts that uses the drive torque to counter the telescope weight and did away with the counterweight found on GEM. For polar-aligned equatorial mounts, the motor drive will correct for earth's rotation. The brushless torque motor requires commutation. The Celestron single-axis motor drive runs on a 9V battery, so there are no cords to get in the way. The sturdy equatorial telescope mount and adjustable tripod features fine manual adjustment for tracking and focusing on celestial objects. How do you drive a bipolar stepper?. extensively equipped - including 2", 30mm 'overview' eyepiece, 8x50 finder scope and 9mm super Ploessl eyepiece. with an average positioning accuracy <20 "and a tracking accuracy of about 1"/15 min. I am also thinking about painting the un-machined cast surfaces orange to match the tripod. The altitude bearing. 3 TABLE 32 6. *2nd* Orion AstroView Equatorial Telescope Mount. Although there are a number of GEM like direct drive mounts that uses the drive torque to counter the telescope weight and did away with the counterweight found on GEM. This one had a full german equitorial with a friction brake on the south end of the polar axis. LARGE TELESCOPES are defined as 14 inch diameter mirrors and upwards and could be on FORK, GERMAN , ENGLISH or other Equatorial mounts with worm, friction or chain drives. As such, it is desirable to provide a telescope system which readily accommodates upgrading of the telescope mount from friction lock mounts to manual worm drives and from manual worm drives to motorized worm drives in a manner which is simple, convenient, and comparatively inexpensive. Stationary latitude knob with a newly-designed linkage system greatly reduces the amount of friction when polar aligning the mount. Integra Field Rotator-Microfocuser. MOFOD Friction Drive Fork Mount. " These are not words one hears applied to a goto smooth-tracking EQ mount. The technology normally used in this class of telescope is well understood in the telescope community and has been successfully implemented in numerous projects. The mount has slow-motion controllers that work well, and help with keeping vibrations down. The fine friction strip makes the movement of the mount very balanced. The gear is fit onto a slip clutch with a knurled friction adjustment ring. In equatorial mode this out-of-balance condition causes the scope to try to swing toward the west. How do you drive a bipolar stepper?. Diy Telescope Hubble Space Telescope Refracting Telescope 3d Printing News Whirlpool Galaxy Andromeda Galaxy 3d Prints Stargazing Android Autoscope: This is fully 3d printed and remotely accessible telescope. A motor drive allows tracking of celestial objects. The Orion U-Mount offers a very solid platform for your large binocular, small telescope or even spotting scope, whether you are star gazing or viewing terrestrial objects. The telescope has been fully refurbished, re-aluminised, and the old electromechanical drive mechanisms removed and have been replaced with the most modern encoders and computer operations. The first test we made with a 30-cm f4 telescope on G53F Friction Drive Mount was used, ASI1600MM-Cool and L filter. July 27, 2018 Title 29 Labor Parts 1911 to 1925 Revised as of July 1, 2018 Containing a codification of documents of general applicability and future effect As of July 1, 2018. The Mesu-Mount 200 MKII is the improved version of the original Mesu 200. has some flex along RA. Stationary latitude knob with a newly-designed linkage system greatly reduces the amount of friction when polar aligning the mount. The second stage is an internal friction drive. Solutions range from high-end motion systems with nanometer precision to industrial applications requiring high torque. The mount system includes an integral pointing model to correct for mechanical errors and misalignments, and an auto-guide unit is also available. A 10” telescope offers an upgrade from an 8” of nearly 50% extra light gathering power, meaning brighter images, better resolution and greater colour saturation. The smooth-moving, sturdy AstroView mount provides a robust equatorial support system for any telescope weighing up to 12 lbs. The telescope fully assembled in the drive. What do you think about these results with the friction drive ? My PHD calibration seems very strange : AD rate = 4. Based on our Friction Drive System (without gears) is the perfect solution for amateur or professional astrophotographers working in the field and for small to medium. The three pads of carpet help prevent vibration from the drive motor exciting the telescope. Drive torques are applied by DC servo-driven capstans. Omegon Advanced Dobson telescope - for a silkily smooth ride into the universe. AstroTrac 360 Single Arm Mount Package. Mobile Tracking Mount for Astrophotography At the heart of the LighTrack is the precision motor and the friction drive. Rigid dobsonian mounts offer large bearing surfaces to attach drives. Just installed the Orion EQ-1 drive Orion 7826 EQ-1M Electronic Telescope Drive on an Orion Mini EQ-Tabletop Orion. Some people like the motor noise a friction drive makes…. The DiscMount was designed with Patented Variable Friction Control along with a large friction disc. This system is renowned for high precision and reliability. 75" at the upper bearing and 4" at the lower bearing. To fit an OTA, tube rings and blocks are required to suit your OTA size. I noticed that yours is friction driven with the motor drive! does it track easily w/no slip? I've been trying to figure out a way to drive mine. the ¼ Hitch Mounts advertised elsewhere on this site also use a roller friction drive system. 5 kW at 1000 m/s. (Current data indicates that the TNT slews the LightBridge 12" at about 7x to 8x. • 20" Cassegrain telescope in Kepler observatory Linz (friction wheel drive, largely identical with our own telescope, build 1998-2000) • Mount for 20" Newtonian, built by Michael Mross, Lüneburg Germany (friction wheel drive) • 20" Cassegrain telescope by Erich Kowald, private observatory Posiberg in Styria (friction wheel drive,. Allen wrenches are stowed beneath the rubber mount base, for adjusting the stiffeness of the altitude and azimuth axes. fric Precision Friction Drive German Equatorial Mount E. Linear Telescope Equatorial Mount No wear, no frictions! No wearing effects since no relevant frictions occur. Friction drives allow you to use a super cool rc motor to drive your bike. The best model of this buying guide is the Celestron NexStar 1100 HD Deluxe. If there is too much friction, the telescope is difficult to move to center an object in the field of view. If not, the telescope has to be pushed uphill, which can cause slippage (or even blocking of the movement). I use a CG-5, Celestron's equivalent to the Eq5 for a 6" refractor which is OK on calm nights but with even a fairly moderate breeze I can't use high powers with it. All that is needed is to adjust the mount to accommodate for the telescope configuration, and forget it. Helpful Resources: Unboxing Video (Backyard Astronomy on YouTube) Celestron CGX-L Equatorial Mount and Tripod – Product Video from Celestron; In March 2019, I took the Celestron CGX-L for a test drive on the Leo Triplet (Click for video). The technology normally used in this class of telescope is well understood in the telescope community and has been successfully implemented in numerous projects. There are a few exceptions of overpriced/underperforming mounts, but once you get over $10k for a mount (you did ask for the BEST), just look for the most expensive. System performance matched to mount and motors selected. Subscribe now! When you sign-up to be on our e-Newsletters, you will begin to receive our newsletter which contains exclusive promotions, news, updates and many more. The invention provides, therefore, a simple and inexpensive drive assembly for the telescope mount, in which the worm gear forms its own ball bearing and its own friction clutch. HEIDENHAIN offers the largest direct drive motor range on the market via ETEL. the mount which is caused by inaccuracy of of worm. The Event Horizon Focuser (EV) is a low-profile, friction-drive focuser designed for both the amateur and professional market. The English mount or yoke mount addresses a problem with the fork mount: the fork itself still experiences an unbalanced load from the telescope, which means the base of the fork must be of heavy construction. atop its tabletop tripod, 2. DFM Engineering, Inc. Please note that these specifications are sub-ject to change without notice and stated for the Losmandy GM 8 mount with the standard accessories. The GM 8 drive system The drive system uses a 2. This system is renowned for high precision and reliability. Celestron's newly designed CGX-L Computerized Equatorial mount is the largest and most capable of their computerized equatorial mount series. OK, it won't be actually the first light, but a brief report from a third night (third use case) when I finally managed to handle the setup (cables etc. Often small, inexpensive scopes are woefully undermounted, leading to shaky views at high power and difficulty tracking objects. Gilles Gagnon converted an Astro-Physics AP400 mount to OnStep, using the MiniPCB board, and NEMA11 motors. Please specify your requested options in your payment for the deposit. Since that time, many more astro-imagers and planetarium controlled setups have emerged as backyard telescope technology has evolved. A belt driven motor minimizes backlash but remains smooth even when handling a large telescope. iOptron SkyGuider Pro Camera Mount Full Package #3550. diameter friction drive in DEC • Steel mirror cell with multiple 12-bolt patterns per KPNO standard • Tracking accuracy: +/- 0. Because of this enormous pressure, it is normal for a "track" to become apparent on the surface of the drawtube with use. Redesigned azimuth adjustment with low-friction Teflon bearings to make adjustments easy under full load. Most camera tripods will have a 1/4″ adapter plate into which you can screw a scope dovetail mount. Three design requirements received special attention: (1) a fast slewing telescope mount, (2) a CCD camera with a high quantum efficiency image sensor, and (3) a simpler optical design. Position feedback comes from low cost incremental encoders, also capstan coupled. Direct drive telescope mounts are not a new idea, and are commonly found on professional observatory telescopes and very expensive high-end telescope mounts. It features variable speed for coarse and fine corrections as well as a friction clutch for manual adjustment on some models. QHYCCD - QHY183M Monochrome CMOS Camera with QHYCFW3S-SR-6 Filter Wheel Combo Kit QHYCCD QHY183M Monochrome CMOS Camera The QHY183 is a one-inch, 20 Megapixel back-illuminated COLDMOS color camer. Based on our Friction Drive System (without gears) is the perfect solution for amateur or professional astrophotographers working in the field and for small to medium observatory use. Specs: Mount. We must realise that in astrophotography is usually lumped into the coordinate correction category. A direct drive mechanism is one that uses the torque coming from a motor without any reductions (such as a gearbox). But you can make your telescope less vulnerable to this fact. Gemini Telescope Design G53F friction drive german equatorial mount This German Equatorial mount tracks the stars with the highest precision in its category. The combination of the reflex site and low-friction Dobson mount makes for a very intuitive telescope that the kids greatly enjoy using. the mount which is caused by inaccuracy of of worm. Levenhuk Skyline 70x900 EQ Telescope has a more stable mount and smooth navigation, but the objective lens diameter is smaller. For mounting the telescope mount head to the tripod, I will use the same friction plate casting but with a 5/8-11 thread in the center and 1/4-20 counterbored clearance holes on the 6 bolt pattern. But all in all, the mount and the telescope are in quite a good shape. The invention provides, therefore, a simple and inexpensive drive assembly for the telescope mount, in which the worm gear forms its own ball bearing and its own friction clutch. Low yield : drawing lot of current for a slow motion. The Mountain Instruments (MI)-250 Go-To is a rock solid German equatorial mount that features a 7. Each axis has two identical drive motors coupled to the telescope through steel friction rollers. Power input and accessory ports remain stationary while the mount slews to avoid snags. It allows you to choose from 3 different speeds as well as a pause mode as well as sidereal tracking for total control. Arduino, GPS module and an SD card with an Ephemeris; aim it at two or three bright stars to calibrate. diameter friction drive in DEC • Steel mirror cell with multiple 12-bolt patterns per KPNO standard • Tracking accuracy: +/- 0. AstroTrac 360 punches above its weight of just 5 kg (11 lb) in GEM configuration. So we decided to rebuild the two friction wheels (RA and DEC axes) completely and scrap the old ones. The Celestron CGX-L 925 SCT combines the legendary 9-1/4 inch Schmidt-Cassegrain with Celestron's largest and most capable German equatorial mount. The altitude bearing. Orion U-Mount. Expert news, reviews and videos of the latest digital cameras, lenses, accessories, and phones. Lightbridge (or any dobsonian rockerbox) upgrades: Click here for info. Friction drives are rare. A direct-drive system is composed of a threaded rod pressed against the rim of a large drive circle. Helpful Resources: Unboxing Video (Backyard Astronomy on YouTube) Celestron CGX-L Equatorial Mount and Tripod – Product Video from Celestron; In March 2019, I took the Celestron CGX-L for a test drive on the Leo Triplet (Click for video). Power input and accessory ports remain stationary while the mount slews to avoid snags. Equatorial mounts tend to be massive (less portable), expensive, complicated, and have the characteristics of putting the eyepiece of Newtonian telescopes in very hard to access positions. The first test we made with a 30-cm f4 telescope on G53F Friction Drive Mount was used, ASI1600MM-Cool and L filter. Celestron's CGX-L Computerized Equatorial mount is the latest addition to our fully computerized equatorial mount series. Solutions range from high-end motion systems with nanometer precision to industrial applications requiring high torque. So, is it possible for an amateur telescope maker to construct a wooden mount suitable for long exposure astrophotography? The answer is definitely yes. Lightbridge (or any dobsonian rockerbox) upgrades: Click here for info. The Questar mount is unique in that it uses a form of roller friction drive on both axis. 857 inches in diameter (D) is assumed. This Celestron PWI (CPWI) Telescope Control Software unleashes the full pointing accuracy of your Celestron computerised German EQ or alt-az telescope. 5" RA and declination drive, matching worm and the Losmandy Gemini-1 System. The mount is designed to carry 100 kg (this is enough for a 500 mm catadioptric or a 200 mm refractor). The new telescope tube, mirror box, and mount, along with ancillary systems were manufactured by OMI (Optical Mechanics Incorporated) during 2011/2012, and initially installed in the dome structure during Aug. Treat your eyes to a new look at the universe. This allows the mount to be adjusted to accommodate large changes in eyepiece (or camera) weights. Apr 20, 2017 - #equatorial platform #telescope #dobsonian. with an average positioning accuracy <20 "and a tracking accuracy of about 1"/15 min. The telescope mount, as shown in figure 1. Shall I install a belt drive too? Maybe, but first I will have a look how it's constructed, maybe there is something I can rework and have it better as it is. The Mesu-Mount 200MKII comes with a robust counterweight bar included. 1 arcsec/seconde. Choose from a range of mount designs and mounting mechanisms. 1000 to end of part 1910) Revised as of July 1, 2013 Containing a codification of documents of general applicability and future effect As of July 1, 2013. all the weight of the telescope is inboard (ie. However, you need a good solid tripod to carry the weight and take into account the axes of movement of the telescope if you want to use it for observing planets and the like. On the first night I messed up polar alignment because I did not purchase the polar scope (I was too cheap and did not want to spend. 5 arcsec/seconde. The Dobsonian mount usually relies on the friction between the side bearings on the optical tube of the telescope and a frictional material on the saddle to hold the optical tube in place. The primary mirror and cell around which the telescope are from the multi-mirror telescope on Mt. Capable of carrying a 75 pound instrument load, it will. 5 homemade telescope. Celestron CGX-L 9. Another common problem known to plague all worm driven mount systems „more or less“ is called „static friction“. A Friction-drive Fork Mount by Dave Rowe Nothing is more important for successful astrophotography than the telescope's mount. A motor is the mechanical or electrical device that generates the rotational or linear force used to power a machine. Although the tracker would be nice since there is no need to rewind it. Safety clutches are mounted in both axes to prevent damage to the drive system or the OTA. FORNAX LighTrack Mark II. The scope can be driven using one of several different methods. It has a 220LB payload capacity and yet weights only about 50 lbs. With a timing belt drive you reduce the backlash. The Celestron CGX EQUATORIAL MOUNT AND TRIPOD. Please note that these specifications are sub-ject to change without notice and stated for the Losmandy GM 8 mount with the standard accessories. 25" accessories 9x50 Finder Scope to help accurately. This single-axis motor drive will make observing easier and more fun, since you won't have to hassle with periodically centering an object in your telescope eyepiece's field-of-view. We captured three images with the highest dynamic range, unit gain, and lowest read noise settings. Before you attach the optical tube, make sure that the declination and right ascension clutch knobs are tight. LARGE TELESCOPES are defined as 14 inch diameter mirrors and upwards and could be on FORK, GERMAN , ENGLISH or other Equatorial mounts with worm, friction or chain drives. i made some. A masterpiece of engineering and workmanship, JMI Standard Event Horizon Telescope Focuser – Cassegrain is a low-profile, friction-drive focuser designed for both the amateur and professional telescope market. Most of the details and dimensions, however, were redesigned. Small ecological footprint, achieved by using low waste factor tecnologies, like 3D printing, laser and waterjet cutting. Here is a view of the platform without the telescope sitting on it. (However, two of mine don’t!) The camera will then track the stars and so ‘star trailing’ will not be present in the resulting images. AstroTrac 360 Single Arm Mount Package. In fact we use multiple types of drive systems i. A 10” telescope offers an upgrade from an 8” of nearly 50% extra light gathering power, meaning brighter images, better resolution and greater colour saturation. RCOS also developed an Elevation over Azimuth tracking mount for Space Debris and LEO tracking. the ¼ Hitch Mounts advertised elsewhere on this site also use a roller friction drive system. The top is 24 inches square. Power input and accessory ports remain stationary while the mount slews to avoid. PlaneWave Instruments is proud to introduce its new L-Series direct drive mount system. Output shaft is driven either by brush torque motor or brushless torque motor. Revolutionary Hubble SiTech/SkySafari GoTo System is $1,995. The single axis drive unit is known as a clock drive. With the trend towards bigger and bigger aperture of the optical telescopes, there are some reports about friction drive employed to drive the telescopes. 5 arcseconds) Unguided exposures possible for up to 300 second exposures. Once the EHT has measured data from the black hole, we still need to make a picture from it - a process referred to as imaging. This is destined for my telescope mount. PULSAR 2 based drive. The telescope must be in balance first ! Starting with the RA axis: Lock the DEC clutch and loosen the RA clutch, hold the telescope it can move away fast !. Heavy Duty belt-drive system minimizes backlash while providing smooth motor operation under heavy loads. Similar to Dashboard Friction Mount Cradle on eBay. 5 pounds for us backwards. The GM 8 drive system The drive system uses a 2. AstroTrac 360 German Equatorial Mount Package. The Elevation drive ratio is about 30: 1, while the Azimuth drive ratio is about 35:1. It features precision roller bearings, Crayford no backlash friction drive and has smooth focusing at high power with 8:1 fine focus. The 1000 lb. Telescope Mounts Standard Features : Accurate tracking is difficult without a proper mount. Attach the included EQ-3M Telescope Drive's precision mini-motor onto the AstroView EQ Mount to track celestial objects automatically. * Mount and Wedge. Camera Tracker Package - Split the AstroTrac 360 German Equatorial or Single Arm mount and you have two of the best tracking camera mounts on the planet. Celestron's newly designed CGX-L Computerized Equatorial mount is the latest addition to our fully computerized equatorial mount series. Mesu-Optics sells saddle plates, counter weights, Berlebach tripods, bended knee pillars and polar scopes. 1000 to end of part 1910) Revised as of July 1, 2013 Containing a codification of documents of general applicability and future effect As of July 1, 2013. But it is quite easy to star hop with the 9'x12' fov of the ccd camera. The combination of the reflex site and low-friction Dobson mount makes for a very intuitive telescope that the kids greatly enjoy using. Obermair follwing a design by R. When the mount is adjusted, only the beam's angle changes, not its length. Spring-loaded brass worm wheel and stainless steel worm gear reduce friction and provide optimum gear mesh. mount is brushed cast aluminum, aircraft polyurethane painted, with friction drive alt-azimuth controls. 96 Nm in the declination (dec. Capable of carrying Celestron’s largest optical tubes with ease, CGX-L is designed for backyard observatories and remote imagers looking for exceptional load capacity to weight ratio, compact design, and innovative features that fully support large. Often small, inexpensive scopes are woefully undermounted, leading to shaky views at high power and difficulty tracking objects. Here it is in the middle of its range of travel and the top is flat. With its friction control system, the mount can be quickly moved to your target object. Portable, easy-to-mount manually operated winch. An M5 screw (not shown) tightens the clamp around the telescope. Gemini G53F capacity 45 kilograms or Mesu-mount 200 capacity 100 Kgs) What we often read/hear: Gear systems require correct lubrication, friction drive is more wear resistant Very smooth tracking is more important than the low. The lens is attached to a black PVC toilet mount flange with a plumbing squeeze clamp exactly for that purpose; miraculously, the enlarger lens was just a little smaller than. AWR have advised on motorizing all types of telescopes and mounts with mirrors up to 36 inch diameter. *2nd* Orion AstroView Equatorial Telescope Mount. Its main profile is the design and manufacturing of telescope mounts and drivers. GARMIN Portable Friction Mount. For my application, I already have a 100:1 harmonic drive, and I'm looking to add a 10:1 friction drive stage, for a mount capable of carrying a telescope around 30kg. The Questar mount is unique in that it uses a form of roller friction drive on both axis. The technology normally used in this class of telescope is well understood in the telescope community and has been successfully implemented in numerous projects. The new AstroTrac 360's advanced friction drives and optical encoders deliver even better unguided tracking performance than the AstroTrac. GARMIN Portable Friction Mount from Currys PC World. New Celestron CGX 14" EdgeHD Telescope. Noisy overnight, especially with the use of stepper motors that can resonate with the telescope mount. Please practice hand-washing and social distancing, and check out our resources for adapting to these times. In particular the mount control system for the giant telescope. The Dobsonian mount usually relies on the friction between the side bearings on the optical tube of the telescope and a frictional material on the saddle to hold the optical tube in place. These characteristics and many others combined with G53F's low weight make the G53F Friction Drive German Equatorial Mount an ideal astrophotography mount in the field or in the observatory. The TTS-160 Panther telescope mount head is the heart of the highly flexible and configurable mount system. With an optical tube assembly weighing only 28 lbs. Sometimes I worked intensely on the DIY telescope mount project, and sometimes the project laid untouched for months and months. He used CSF32-160 for RA and CSF20-80 for DE. The polar and equatorial disks are driven by 1:24 and 1:32 rollers, respectively, through 1:180 worm gears and servo motors. fric Friction Drive Mount. High torque motors with better slewing and tracking ability. Although there are a number of GEM like direct drive mounts that uses the drive torque to counter the telescope weight and did away with the counterweight found on GEM. EQ-3M single- and dual-axis computerized drive systems are available separately. This single-axis motor drive will make observing easier and more fun, since you won't have to hassle with periodically centering an object in your telescope eyepiece's field-of-view. The RK monitor mounting is made of an optimised mix of materials: The wall mount and connecting plates are made of aluminium, the tube connectors of high-strength plastic. Celestron CGX-L 1400 combines Celestron's largest and most advanced optics and mount together in an observatory class telescope system. The fine friction strip makes the movement of the mount very balanced. Mount your Garmin sat nav in your car with the Garmin Portable Friction Mount. )This is accomplished by a small diameter grooved. Capable of carrying a 75 pound instrument load, it will. astro-imaging. By comparison, an equatorial mount is essentially an alt-az mount that is tilted to match your latitude, allowing a telescope to track the stars with the addition of a simple clock drive. How do you drive a bipolar stepper?. Gemini G53F capacity 45 kilograms or Mesu-mount 200 capacity 100 Kgs) What we often read/hear: Gear systems require correct lubrication, friction drive is more wear resistant Very smooth tracking is more important than the low. 8, 2013 Title 29 Labor Part 1910 (§ 1910. Celestron's CGX-L Computerized Equatorial mount is the latest addition to our fully computerized equatorial mount series. Also problems can occur when using a poncet mount: when the azimuth bearings have to much friction, it will be possible that the drive sector slides over the driveroller when moving the telescope in azimuth. I started the development of the friction drive concept due to its superior precision and rigidity. Ensure gear on motor meshes with the shaft gear assembly. This isn't your ordinary altazimuth mount head. We are serving amateur and professional astronomers worldwide. ject to overtake the telescope. The rod end needs to be tapped since it has no threads (my modeling skills are up to making threads yet). It has a 220LB payload capacity and yet weights only about 50 lbs. LARGE TELESCOPES are defined as 14 inch diameter mirrors and upwards and could be on FORK, GERMAN , ENGLISH or other Equatorial mounts with worm, friction or chain drives. At the heart of the LighTrack is the precision motor and the friction drive. The telescope has a 4m aperture primary mirror, however due to the off axis nature of the optical layout, the telescope mount has proportions similar to an 8 meter class telescope. Usually a tripod with a head containing manual or motorised controls, which point the. Ultra-Light Conversions. General Specifications. An altazimuth telescope's drive rates vary continuously, When driving the mount the motors prefer it if in today's epoch coordinates. Telescope Computer hand controller to add full Go-To functionality. All mounts are designed and manufactured by. GARMIN Portable Friction Mount from Currys PC World. If you needed 15 W at 10 m/s, then you'll need 1. Alternatively, if manual clutches have been installed along with the drive motors, you can revert to using the manual slow motion controls at any time. (TDM is an alternative solution to guiding. The first telescope i built was an eq-fork mount - sorry no pictures of it - it was in 1983! It was undriven, though I had plans to add a sector ra drive. System performance matched to mount and motors selected. When the mount is adjusted, only the beam's angle changes, not its length. If there is too much friction, the telescope is difficult to move to center an object in the field of view. 4 out of 5 stars, based on 5 reviews 5 ratings Current Price $28. Most of the details and dimensions, however, were redesigned. PULSAR GoTo Controllers. The TNT motor drive system includes adjustable speeds on both axes, high speed centering and one-touch re-positioning of the altitude tangent arm. The L-Series comes in three models; the L-350 capable of holding 100 lbs; the L-500 designed for the CDK17/20 that can hold payload of over 200 lbs. Celestron's newly designed CGX-L Computerized Equatorial mount is the latest addition to our fully computerized equatorial mount series. 4kg (that's 7. So we decided to rebuild the two friction wheels (RA and DEC axes) completely and scrap the old ones. We must realise that in astrophotography is usually lumped into the coordinate correction category. Up to 2" OD, 2" length, name the custom bore. Normally it's: "Big. atop its tabletop tripod, 2. it was mainly designed by open space agency under open hardware licence as ultrascope plus. 50 deposit at the order time, rest, including options and shipping will be paid before the delivery (~30 days after the deposit) via a Paypal invoice. For many years I've enjoyed imaging with an old second hand Meade LXD55 telescope mount. Spring-loaded brass worm wheel and stainless steel worm gear reduce friction and provide optimum gear mesh. The shaft diameter is 140mm. As a result, it’s easy to keep the objects that move on the center point of the eyepiece. This system is renowned for high precision and reliability. The fine friction strip makes the movement of the mount very balanced. loosening the bolt to free the OTA, 4. The telescope, located at the Kitt Peak National Observatory, uses an Elevation-Azimuth mount. LARGE TELESCOPES are defined as 14 inch diameter mirrors and upwards and could be on FORK, GERMAN , ENGLISH or other Equatorial mounts with worm, friction or chain drives. The Celestron CGX-L 925 SCT combines the legendary 9-1/4 inch Schmidt-Cassegrain with Celestron's largest and most capable German equatorial mount. New Celestron CGX 14" EdgeHD Telescope. GARMIN Portable Friction Mount. Tracking corrects for rotation of the earth by rotating the telescope at about the speed of an hour hand on a clock. With a stiffer construction, better cable managament, brake mechanism for both axises and (de)coupling mechanism for the two servo motors, it is an improvement on it's predecessor. Hub motors are everywhere, the basis for 95% of modern ebikes. recommendation for beginners or visual observers who want to easily zoom in; The Omegon EQ-500 X Drive is the ideal all-round telescope mount for demanding beginners and advanced amateur. PULSAR GoTo Controllers. 5 arc seconds. He used CSF32-160 for RA and CSF20-80 for DE. Levenhuk Skyline 70x900 EQ Telescope has a more stable mount and smooth navigation, but the objective lens diameter is smaller. The new AstroTrac 360's advanced friction drives and optical encoders delivers best unguided tracking performance!. Output shaft is driven either by brush torque motor or brushless torque motor. Although there are examples of use of even heavier telescopes up to 100kg, the recommended maximum load is about 80kg for this telescope mount when used for imaging. The telescopes are usually balanced; such that you just need enough torque to get the scope moving. AWR have advised on motorizing all types of telescopes and mounts with mirrors up to 36 inch diameter. 5" matched Byers drive on a friction clutch. recommendation for beginners or visual observers who want to easily zoom in; The Omegon EQ-500 X Drive is the ideal all-round telescope mount for demanding beginners and advanced amateur. An amateur astronomer in Korea made a harmonic drive telescope using machined aluminum. But you can make your telescope less vulnerable to this fact. When the mount is adjusted, only the beam's angle changes, not its length. A sidereal-rate drive assembly for an astronomical telescope which includes a worm gear for rotating the telescope about its polar axis and which is engaged by a motor driven worm. Very impressive! EdgeHD is an aplanatic, flat field Schmidt-Cassegrain telescope that produces aberration-free images across a wide visual and photographic field of view. fric Friction Drive Mount. This telescope also uses a 6×30 Straight-View Finderscope, a tension control handle, and a floor-based manual Alt-AZ mount. First to use Baltic Birch/ApplePly plywood construction. fric Precision Friction Drive German Equatorial Mount E. atop its tabletop tripod, 2. However, the ultra-lower speed and the giant moment of inertia make the mount drive of the telescope very difficult to be controlled. A masterpiece of engineering and workmanship, JMI Standard Event Horizon Telescope Focuser – Cassegrain is a low-profile, friction-drive focuser designed for both the amateur and professional telescope market. Shall I install a belt drive too? Maybe, but first I will have a look how it's constructed, maybe there is something I can rework and have it better as it is. Star Adventurer Astronomy Mount. By comparison, an equatorial mount is essentially an alt-az mount that is tilted to match your latitude, allowing a telescope to track the stars with the addition of a simple clock drive. But the Rainbow RST-150H (Image 1) really is a one-handed telescope mount that's super light. Capable of carrying Celestron's largest optical tubes with ease, CGX-L is designed for backyard observatories and remote imagers looking for exceptional load capacity to weight ratio, compact design, and innovative features that fully support large telescopes. nl see backside. A shortened mount profile creates a more compact mount that is easier to carry and assemble but also improves the mounts central gravity boosting load capacity. Orion U-Mount. The pillow blocks hold skate board bearings. Star testing on a GEM with a video sample and specs will be available soon. 3 mm optimised image circle with pinpoint stars to the far corners of even the largest astroimaging sensors. It bounces, or reflects, the light off the mirror. Celestron's newly designed CGX-L Computerized Equatorial mount is the latest addition to our fully computerized equatorial mount series. Celestron CGX-L 9. A sidereal-rate drive assembly for an astronomical telescope which includes a worm gear for rotating the telescope about its polar axis and which is engaged by a motor driven worm. In this paper, the principle and characteristics of friction drive is analyzed. The Omegon Dobsonian telescope gives you clear views of planets, nebulae and galaxies. This Celestron PWI (CPWI) Telescope Control Software unleashes the full pointing accuracy of your Celestron computerised German EQ or alt-az telescope. Another consideration when choosing a telescope is the mount – the part the optical tube assembly sits on. 5) uses a mirror instead of the glass lens, which is located near the rear of the telescope tube. In a ideal system with no friction, the torque to maintain 10 m/s and 1000 m/s is the same, but the power required to produce that torque at the higher speed is 100 times more. A motor is the mechanical or electrical device that generates the rotational or linear force used to power a machine. All you have to do is attach your camera to the Orion EQ-1 Equatorial mount and tripod with the included 1/4"-20 threaded adapter, then align the. DIY Stepper Controller using Arduino. Unfortunately the price of a direct drive telescope mount is far outside the budget of most amateur astronomers (on the order of $15,000 USD or more). 0 arc seconds in 1 hour. The amazing unguided tracking accuracy of the LighTrack is in its own league. The new AstroTrac 360's advanced friction drives and optical encoders deliver even better-unguided tracking performance than the AstroTrac TT320X-AG. And like HEIDENHAIN, ETEL builds its linear and torque motors, along with motion systems, on a foundation of superior knowledge and technical. DFM Engineering, Inc. Camera Tracker Package - Split the AstroTrac 360 German Equatorial or Single Arm mount and you have two of the best tracking camera mounts on the planet. The telescope impacts visual detection differently depending on the type of object. lazy susan, gear fly wheels, reducer gears, worm gear drives…. Celestron's newly designed CGX-L Computerized Equatorial mount is the latest addition to our fully computerized equatorial mount series. The 1000 lb. I made do with the materials and tools I have, and I'm happy it works! EDIT: It's a bit odd to drive the rotor from the top bearing, but based on my calculations, that force exerted on the drive bearing by the weight of the assembly is about the same as if I had used on of the bottom edge. Telescope Drive. 6 DRIVE ASSEMBLY 46. Celestron RASA 11″ telescope and CGX mount package; Rowe-Ackermann 11-inch f/2. Its 315 teeth have a lead variation of less than. 03, is a combination of a welded steel-plate lower platform, and two columns fabricated from tube. atop its tabletop tripod, 2. This thesis describes the servo control system which was developed to control the motion of the telescope. EQ-3M single- and dual-axis computerized drive systems are available separately. A This is a balance problem on the telescope. A 55 tooth gear was tapped to drive the 1/4-20 rod. We must realise that in astrophotography is usually lumped into the coordinate correction category. Celestron CPWI Software interface With any one of three connection methods from your PC to the mount, CPWI's telescope control and Sky Viewer display makes selecting your target easy. 00006 inches R. 24 arcsec/seconde instead off 7. DIY mounts for astronomy. A masterpiece of engineering and workmanship, JMI Standard Event Horizon Telescope Focuser – Cassegrain is a low-profile, friction-drive focuser designed for both the amateur and professional telescope market.
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