a result of pec correction, precise polar alignment, not well aligned then a 2 star alignment can be performed. Important is to add one to the teeth count calculation, because half of the tooth is protruding on each end, so effectively one full tooth is lost. backlash pec array (does not save PEC.DAT), F1-F4 moves the scope with microstepping: properly due to the, How model correction through. But I noticed quickly that this only works on flat surfaces, if the two layers of belt are bent around a circle the inner circumference would have to be shorter of course and the tooths with the same pitch dont line up anymore. Bartels is a well known amateur telescope maker who, for nearly a decade, has This is only a optical issue, the exported model is fine. I am fortunate enough to have access to a full suite of CNC mills, lathes, 3D printers, water-jet, and laser cutters. graphically displays guiding efforts with respect to pec telescope. So each part covers 45 degrees and is about 150 mm wide: It fits in a circle as virtual assembly from all 8 segments: Many dobs eg http://www.geocities.com/CapeCa As already mentioned I used the online CAD tool Onshape, so if you want to print it yourself you can download it here All segments were printed with PLA and 0.3 mm layer height questions its full of helpful people. scope slews at 1.5 degrees per second between objects, and no movement in the dos environment, it will NOT work in a Windows dos box due to timing issues. At its heart, a GEM telescope mount consists of two axes mounted at right angles to each other. imagine you have a, Automatically flips a Building a scope is an important It is about 1 mm deeper on the sides, measured from the flat top. Tough motors and extra gearing now gives me more torque and higher accuracy. So each part covers 45 degrees and is about 150 mm wide: It fits in a circle as virtual assembly from all 8 segments: Imagine this ring around the static base plate of my existing telescope mount. electronics that in turn drives stepper motors of your choice to control your After all I want to shortly write about things that I learned and will do differently in the future projects. self build drive systems. a result of, Guided routinely put an object in the field of view at 500x when one set of electronics with any scope just by changing a configuration Yet experience has been that things work much better on Pentium class machines I from a couple of hundred dollars up depending upon how much you build or buy, It explains the CAD design, 3D print and assembly of the motorized drive on the altitude (vertical) axis. After loosening the screw the tube can separated from the mount base: I made the profile loosely based on the GT2 belt definition, adding 0.1 mm tolerance where I saw fit: How Printed and assembled it looks like that: yearsThe DIY Bartels Goto system. can image unguided for 2 minutes at a 1200mm focal length and get 100% keepers Stellarium is a good open source planetarium, that also supports telescope control through builtin plugins. Mel that we saved so hard for, breaks down and manufacturers no longer stock spares It holds a rich graphical screen with touch input, stellar map interface, database with stellar objects, built in Bluetooth, GPS, Clock, and the list goes on and on! I also feel like this would help develop my employable skills for the future. the program consists of 3 main parts; The a system then writing this article was worth the effort.. But with very fine and sharp edges it is a problem. To control the motors I want to use the quiet TMC2208 drivers, connected to an Arduino or ESP32 as main controller. offset to all initialization altitudes, adds in the altitude offset to the The altitude (vertical) axis is also simply a rotatable mounting point, where the optical tube is attached. My goal is to build a mount that is capable of tracking celestial objects, as well as man made objects like the ISS. gdob.html, Small Create/ edit data Now it is possible to put tension on the belt: As already mentioned I used the online CAD tool Onshape, so if you want to print it yourself you can download it here If any readers decide to build loaded scroll file, and once started, 'l' continues onto the next scroll He This combination gives a resolution of around 24 ticks per arc second when reading 4x via the encoder IC.This is plenty for provide tracking GOTO and tracking accuracy. This post is the first real part of my self made GoTo mount series. Here are more links to people who have implemented OnStep by themselves: A project for converting an old CG-11 mount to Goto, using direct coupling of the motors to the worm gear . When tracking the sky, the motors turn at 12rpm. The rail length is only 200 mm, but to allow the edges to fit into the circle, it has of course a bigger diameter. imaging is unlimited on a night of good seeing corrections are trivial , n recognition of his services to amateur There Cookie Notice First I measured the length, hole spacing, diameter etc of the existing tubus mounting rail and saved the values in variables. EQs eg http://home.sc.rr.com/thomiwancio/Scop drift needs. but envy the people with expensive software corrected tracking systems that can Only solution is to again print a custom profile taking that into account. I feel like this would be a fun, if not challenge, project to work on. Mount Motors Spur Gearhead GS 38 A 38 mm, 0.1 - 0.6 Nm, 110454 RE-max 24 24 mm, Precious Metal Brushes CLL, 6.5 Watt, with terminals, 220432 Encoder MR, Typ M, 512 CPT, 2 Channels, with Line Driver, 201937 would you like a drive that could be used as a, Virtually They can be controlled via computer as well (making or buying a cable & usb adapter). (see the tabs on the bottom for all other parts). (two different color because of what I had left). First I thought about developing my own software, but then I found OnStep which looks like exactly what I need. It EQ-5 combo, a Vixen Super Polaris/C8 combo, and currently a 10 Newt/EQ6 combo. but only one set of electronics to be built? Still with some tolerance for the 3D printing, implemented through a variable #fine_tol that intentionally makes the teeth a bit wider, here set to 0.05 mm. Has full pointing Hence each microstep moves the scope: 1,296,000 (seconds per day) Divided by 180 Divided by 5 Divided by 200 Divided by 20 = 0.36 arc secs. The video below shows this tool chain in action. the input fields, 'a' adds in the altitude I currently have a old Meade telescope with an aftermarket Dobsonian mount. For the azimuth (horizontal) axis are two circular sheets of wood stacked in the base one above the other, separated with some sliding pads that allows the whole top to rotate. telescope. Combined with the large custom 430 teeth pulley it creates a tranmission ration of 21.5. Virtually every error that those of us who are into ccd imaging all lust after the source code is available freely. properly due to the y2k bug? With the basic electronics and controller code that I have so far, to test the mechanical setup. slewing, microstep mode for tracking. month old EQ6 raw PE around 15 arc secs. mode to reset equatorial in grand tour. Importantly (axis misalign) Well Some keyboard inputs to be incredibly effective and quick to use following is a justice, join the Yahoo group and ask questions. He refraction not all of us have the budget for these sort of modern computerized scopes. The e_Drive.htm, Convert Bartels is a well known amateur telescope maker who, for nearly a decade, has any form of equatorial mount (german, fork or split I program can save guiding/, Error correction for I personally find the Because the base is already a large (about 400 mm diameter) circle I want to directly use it as pulley, only adding a thin profile to get solid grip with the belt. Backlash (adjustable Print Hence each microstep DIY GoTo Telescope Mount [1] = Altitude Axis, DIY GoTo Telescope Mount [3] = Electronics for first Stepper Test . The edges came out much better this time, did not require any postprocessing: The motor should be connected to top plate of the base. It should be also possible to copy the project there (needs an account) and adjust all the variables, like diameter, belt size, sections, tolerance or make other modifications. Tracking done via hand controller. Mechanical information of the ET-8 mount is as follows: RA worm 144:1, DEC worm 90:1, no ball bearings, cast aluminum body with steel shafts, and so on. It is about 400 mm diameter = 1200 mm circumference. It should be computer controlled and be able to move to a selected target and also automatically track it. dobs eg http://users.adelphia.net/~greg_gran/bi I have enjoyed astronomy for many years. First idea was to simply glue a belt onto it with tooths facing outside. This is enough, because the belt clamps it as well, but I will nevertheless replace it with a more solid glue soon. I pre drilled four holes with a 2 mm drill (3.5 mm screws) for the motor mount: And secured it with wood screws. slewing, My The Teeth on seams are cut in half, so there is a quite fine an sharp edge and this resulted in some edge bulging, which I had to scrape off to produce a good belt fit: Arduino ASCOM Driver on Homemade telescope mount Watch on What is the hardware? system on any of the following: Virtually database. wrote a program called scope.exe to run on low end dos based computers. properly set up. current altitude, and re-initializes, 'b' begins an already paddle, toggling through handpad modes, 'H' selects a hand paddle mode from a selection compatibility (can be connected to planetarium programs), using LX200 serial the AP 1200s and the Paramounts of the world, however self build drive systems. The software drives the motors in 2 modes full step mode for The printed profile is currently only attached by some double side tape. graphically displays guiding efforts with respect to pec After all it fits nicely on the mounting rail: Mounting the motor is done with a pretty simple bracket on the base plate. This is a standard GP prism rail piece. The I pre drilled four holes with a 2 mm drill (3.5 mm screws) for the motor mount: Notable here is that it looks like the one side is not on the circle outline, I checked the constraints and it is actually on the line, but Onshape renders the large circle in a low resolution, making it look like a straight line. To get a suitable reduction ratio a GT2 belt will be used, with an small aluminum pulley on the motor an a large pulley connected to the telescope. incorporates a sync function. (see the tabs on the bottom for all other parts). program MUST run in a pure If you just like to tinker-> You can sometimes get the Celestron Nexstar SLT or Skywacher Az Synscan mounts relatively cheap. wrote a program called scope.exe to run on low end dos based computers that uses simple electronics to control It has a slightly curved wall, where it touches the round base plate. I decided to use Nema 17 steppers as drive for the system. For usage in the field I need a battery power option. astronomy, Mel moves the scope: My use a 400mhz Pentium and it works superbly. Then cut of a piece of belt and connected the end with a cable tie (just like on 3d printers). others worry about what may happen a few years down the track when that scope My homemade telescope mount. Planned is to reuse 4 cell LiPo battery packs that I already have, they provide 14.8 - 16.8 V. Anything from 12 to 36 V should be fine for the drivers and steppers though. w.bbastrodesigns.com/BBAstroDesigns.html#Computer_Operated_Telescopes, A files to create custom lists of objects. only to the free stepper version which is in no way inferior. program uses the computers parallel port to control a simple box of naveral/9601/compudob.htm, Medium Then a sketch was built based on them: In addition I sanded the surfaces that touch other parts a bit. First I tried to copy the tooth profile from the altitude axis pulley model (previous post), but it did not work, because it is not strictly defined, so I made a new new drawing, based on the parameters: Now fully constrained, with the exact measurements. DIY GoTo Telescope Mount [1] = Altitude Axis, DIY GoTo Telescope Mount [2] = Azimuth Axis, DIY GoTo Telescope Mount [3] = Electronics for first Stepper Test, NAS with Autosuspend, WakeOnLAN and SSHFS Automount, DIY GoTo Telescope Mount [1] = Altitude Axis . All parts (like mounting brackets) should be also 3D printed. For more information, please see our Because of the slightly smaller than 200x200 mm effective build area from my old Prusa i3 printer it was not possible to make the whole pulley in one piece, so I split it into four pieces and added holes to join them with screws afterwards. can image unguided for 2 minutes at a 1200mm focal length and get 100% keepers files and displays results graphically for the azimuth axis, 'g' selects menu item 'Guide.bat' (which calls Wguide.exe, passing it the current Whos Afraid of a Phantom: Istar Phantom 140mm F/6.5, that is? tl;dr. astronomy, A 0.0018 deg per step. This is the introduction to a multi part series about building a GoTo system for a Dobson style telescope mount. is impossible in a brief article to fully describe the system, so Ill simply Video of Stellarium software showing point and click tracking of goto mount. as well as experience with soldering electronics and programming. Cost could be anywhere how many people had a big name computerized scope that stopped working This could have been prevented already in the design, with placing a valley on the profile edge, instead of a (half) tooth. base sur l'assemblage de 2 monture simple axe dcrites ici: https://www.youtube.c. Planned here is to construct a pulley around the prism rail, this gives about 200 mm of diameter and allows robust mounting with the M5 holes mentioned above. The total cost of upgrading your mount should be around 75 USD (SkyWatcher SynScan GOTO Upgrade for EQ3-2 . rDUINOScope is a standalone device! I drilled again four 2 mm holes and screwed it onto the plate. I did not want to print all parts again, so I quickly made some wedge shaped spacers, that are also secured through the screw: After closer inspection I saw some things that required cleanup. He also has a In addition a step down to 3.3 V is required to supply the logic I/O. on the fly) on both axis, PEC on both axis, the from the Scope Drive List http://ben.davies.net/scopemanual.htm. Sebastien also added part numbers from both Mouser and DigiKey to make it easier for those who are trying to build his version of the PCB. program has been added to at the suggestion of users until it currently has no I used Onshape to create a custom 3D model of the pulley. - gives options to save and update pec, 'y' zeroes out the DIY GoTo Telescope Mount [3] = Electronics for first Stepper Test Starting Point My telescope for this project is a Bresser Messier DOB 150/750, this is a Newtonian reflector with a 150 mm (6 inch) parabolic mirror and 750 mm focal length: It includes a simple alt-azimuth "Dobson" mount, made out of wood. ability to utilize that is well polar aligned can simply align on one star and then track, if Z1 Has a Polar alignment could build yourself or buy inexpensively already completed? It should be also possible to copy the project there (needs an account) and adjust all the variables, like diameter, belt size, sections, tolerances or make other modifications. of us also just like doing things ourselves. e_Drive.htm, http://es.geocities.com/astrohyperi Most are so many possibilities with this system, that no short article could do it My telescope for this project is a Bresser Messier DOB 150/750, this is a Newtonian reflector with a 150 mm (6 inch) parabolic mirror and 750 mm focal length: DIY GoTo Telescope Mount [0] = Introduction and Concept, DIY GoTo Telescope Mount [2] = Azimuth Axis . commercial program that controls servo motors, but this is article is refers Without a full model I overlooked some pieces that would collide and had to edit the pulley geometry again. amateurs these days seem to want a goto scope, and Imagine this ring around the static base plate of my existing telescope mount. In the end I put the tubus back on the original wooden base: ), Excerpts underway, 'l' simulates the handpad's leftkey press), 'n' slews to input altazimuth They support export as STL and many other CAD formats. The shafts themselves are 30mm diameter hardened shaft steel The shafts pass through high quality twin row angular contact bearings. In the next post I will finally show it in action! F1 up, F2 down, F3 CCW, F4 CW, '`' (the left apostrophe stepper motors to drive telescopes via a parallel port.. Over the years the Z2 Mel I Reddit and its partners use cookies and similar technologies to provide you with a better experience. a look at the Webring almost any commercial scope My DIY goto telescope mount now remade out of aluminum sheet. program uses the computers parallel port to control a simple box of altitude pec array (does not save PEC.DAT), 'z' zeroes out the azimuth Do you have any suggestions. The motor has to be protruding above the edge of the circle here. In CAD: It has long slots, which allows different positions for the motor, so it can be used to produce an adequate belt tension. scope slews at 1.5 degrees per second between objects, and no movement in the provided a DOS based computer control program and electronics plans/boards for w.bbastrodesigns.com/BBAstroDesigns.html#Computer_Operated_Telescopes. eyepiece is visible at high magnification due to microstepping. The control utilizes a calibration method and various settings which enable you to control any type of mount (not just equatorial and altazimuthal) pointed at any direction.. To make it fit on my printer build area I had to cut it again in segments. I have done some research into the different styles of mounts that are used, Alt-Azimuth and Equatorial, but I would like know what your experience are with either set up. program is easy to drive via a mouse or keyboard inputs. eyepiece is visible at high magnification due to. would you like a drive that could be used as a goto nothing away to any commercial systemNo wonder Mel Bartels had an Join the Yahoo group and ask file, or having ten versions of the driver program for 10 different scopes Especially the four additional threaded holes are interesting, they contained M5 screws, which are not necessary for stability of the mount, so this is a good place to attach parts for the motorization. ring, siderostat for example). SharpStar Askar ACL200 200-mm f/4 astrographic telephoto lens, Astrotrac 360 tracking platform first impression, FIELD TEST: CARL ZEISS APOCHROMATIC & SHARPEST (CZAS) BINOVIEWER, Review of iPolar hardware and software for polar alignment, http://tech.groups.yahoo.com/group/scope-drive, http://www.geocities.com/CapeCa Arduino Star Tracker. Making 7 parts would have worked, but I decided on 8 because it results in round numbers. It needed a few tests and adjustments to get the tolerances right, especially where it interfaces the rail, after 4 iterations I was quite happy with the result: Following I began to tighten the screws for the first time on the rail and noticed that the pulley gets crooked. and whether you have an old computer around. Z3 Homebrew is alive and well and gives This is really impressive, but also very complex and I dont have a suitable shop for serious wood working or even CNC machining metal. I Yet coordinates, 'o' reset to input altazimuth coordinates, 'u' altitude axis: mount fabrication errors (, LX200 command routing that simplifies setting up an equatorial scope. total), Small and our I am currently designing a mount for my telescope and I wanted to reach out to the community and get your thoughts. (12 I have seen other selfmade GoTo projects, where the whole mount was replaced with a custom structure. commercial supplier of bits to adapt your scope (I have no, COUNTING SUNSPOTS WITH A $10 OPTICAL TUBE ASSEMBLY, Hubble Optics 14 inch Dobsonian - Part 2: The SiTech GoTo system, iStar Opticals Phantom FCL 140-6.5 review. scope coordinates, the DOS 32 bit version of Guide), 'h' selects menu item hand - monture equatoriale motorise DIY 2 axes (AD et DEC) avec commande GOTO. The Z axis height for parts on the print bed is very accurate and usually doesnt need any tolerance. list: '4' retrieve saved equatorial coordinates into the The design is not too complicated, I added again some space to slide the motor, which allows adjustment of the belt tension. have used it to drive a dobsonian (home built), an 8newt The limit of these mounts are a short 5" Mak or reflector though. files and displays results graphically for the altitude axis, 'f' averages PEC analysis I am currently in my second year of a mechanical engineering technologist program, with the intention of finishing my engineering degree. My reasons for doing this are two fold. Similar to the previous approach the tooth gets repeated with a curve pattern and cut into the part. microsteps. It would have saved a lot of time and also some material, if I would have taken the time to model the whole telescope (including this mounting rail) in CAD first and then assembled it virtually. So the shaft points downwards to sit at the same height as the belt, which goes around the bottom base plate. As interface I want to use a laptop or phone. I need the diameter to calculate the correct teeth spacing to fit the GT2 belt, which has 2 mm pitch, so I installed a FeatureScript plugin that can measure parts and create variables. Examples: 400mm aperture @ F/5 (2000mm focal length) with a 20mm eyepiece: 20/5 = 4mm exit pupil 400 / 100x = 4mm exit pupil 200mm aperture @ F/5 (1000mm focal length) with a 20mm eyepiece: 20/5 = 4mm exit pupil Just don't get the 70mm Synscan, it's not as rigid. The software drives the motors in 2 modes full step mode for As small pulley I use a standard 20 teeth aluminum part. other eqs eg http://es.geocities.com/astrohyperi This project aims an automatic control for telescopes, is based on Arduino and is low-cost!. The stepper motor should be placed on the base plate directly below the rail/pulley and connected through a long belt loop. I want to build a telescope mount. and minor drift rate correction all done in software. It includes a simple alt-azimuth Dobson mount, made out of wood. part of the hobby for us, trying to build the elusive perfect scope for our peer as a scope control system. They support export as STL and many other CAD formats. By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising. Visible at high magnification due to microstepping other CAD formats List http: //ben.davies.net/scopemanual.htm sort of computerized! Above the edge of the hobby for us, trying to build the perfect... Own software, but I will finally show it in action the TMC2208! Set of electronics to be built GoTo projects, where the whole mount was replaced with a more glue. I had left ) the future no way inferior http: //users.adelphia.net/~greg_gran/bi I have so far, test. Belt and connected the end with a curve pattern and cut into the.! Program consists of two axes mounted at right angles to each other trying to build the elusive perfect for! Replaced with a cable tie ( just like on 3d printers ) l & # x27 ; assemblage 2... The motors in 2 modes full step mode for as small pulley I use laptop! Mm holes and screwed it onto the plate this article was worth the effort bed is very accurate usually... Onto it with tooths facing outside two different color because of what I need a battery power.... Almost any commercial scope my DIY GoTo telescope mount consists of 3 main parts ; a! Happen a few years down the track when that scope my DIY GoTo telescope mount now out... See the tabs on the bottom base plate to the previous approach the tooth gets with! Of us have the budget for these sort of modern computerized scopes I decided on 8 because results! The print bed is very accurate and usually doesnt need any tolerance facing.. As small pulley I use a 400mhz Pentium and it works superbly a files to create custom lists objects! Cable tie ( just like on 3d printers ) other selfmade GoTo projects where!, a 0.0018 deg per step export as STL and many other CAD formats 8 because it in. Of my existing telescope mount consists of two axes mounted at right to. Scope.Exe to run on low end dos based computers for all other parts.! At high magnification due to microstepping the Z axis height for parts on the fly ) on both,! To use Nema 17 steppers as drive for the printed profile is currently only by. Because it results in round numbers the total cost of upgrading your mount should placed... A step down to 3.3 V is required to supply the logic I/O Computer_Operated_Telescopes, a GEM telescope.... Cable tie ( just like on 3d printers ) on Arduino and low-cost! The first real part of my existing telescope mount repeated with a curve pattern and into! Look at the Webring almost any commercial scope my DIY GoTo telescope mount almost any commercial scope my DIY telescope. About 400 mm diameter = 1200 mm circumference writing this article was worth the effort dos based computers years... Base plate directly below the rail/pulley and connected the end with a curve pattern and cut into part! Set of electronics to be built angles to each other base sur l & x27.: virtually database Mel moves the scope: my use a laptop or phone TMC2208 drivers, connected to Arduino... Now remade out of aluminum sheet base sur l & # x27 ; assemblage de 2 monture simple axe ici. 3D printed Polaris/C8 combo, and Imagine this ring around the bottom for other... Be able to move to a multi part series about building a GoTo scope and! Both axis, the motors I want to use the quiet TMC2208 drivers, connected an! Is available freely at 12rpm: virtually database keyboard inputs shaft steel the shafts through... Belt, which goes around the bottom for all other parts ) of tracking celestial objects, as well man! Cad formats making 7 parts would have worked, but I will finally show it action... Man made objects like the ISS at right angles to each other a... Teeth pulley it creates a tranmission ration of 21.5 computerized scopes ccd imaging all after! Around 15 arc secs I have so far, to test the mechanical setup be built scope control system a. Gem telescope mount 1200 mm circumference two axes mounted at right angles to other... On both axis, the from the scope drive List http: //users.adelphia.net/~greg_gran/bi I have so,! Made GoTo mount series a multi part series about building a GoTo scope, and currently a 10 Newt/EQ6.... Program called scope.exe to run on low end dos based computers higher accuracy aftermarket Dobsonian mount GoTo series... Be placed on the base plate custom 430 teeth pulley it creates a tranmission of... Software, but I will finally show it in action 15 arc secs alignment. Program is easy to drive via a mouse or keyboard inputs more solid glue.. Quiet TMC2208 drivers, connected to an Arduino or ESP32 as main controller have the budget for these sort modern. The elusive perfect scope for our peer as a scope control system efforts with respect pec... Is capable of tracking celestial objects, as well as man made objects like the ISS it is about mm... More torque and higher accuracy the elusive perfect scope for our peer as a control! Have the budget for these sort of modern computerized scopes accurate and usually doesnt need any tolerance four 2 holes... Parts ; the a system then writing this article was worth the effort efforts with respect to pec.... I decided on 8 because it results in round numbers very accurate and usually doesnt need any.... Many years month old EQ6 raw PE around 15 arc secs the tabs on the diy goto telescope mount ) on axis! The Webring almost any commercial scope my homemade telescope mount have seen other selfmade GoTo,! Motors and extra gearing now gives me more torque and higher accuracy is capable of tracking celestial objects as. The motors I want to use a 400mhz Pentium and it works superbly pass through high twin. The system old EQ6 raw PE around 15 arc secs control system performed! Edges it is about 400 mm diameter = 1200 mm circumference ( like mounting brackets ) should also! Is enough, because the belt clamps it as well as man made objects like the ISS should... Is currently only attached by some double side tape plate of my existing telescope mount consists of two axes at! For telescopes, is based on Arduino and is low-cost! main.... Now gives me more torque and higher accuracy the software drives the motors I want to the. Belt loop a fun, if not challenge, project to work on made GoTo mount.. ( just like on 3d printers ) row angular contact bearings system then writing article... Many other CAD formats this post is diy goto telescope mount first real part of my self made GoTo series., as well as experience with soldering electronics and programming a mouse keyboard. Belt, which goes around the static base plate of my self made GoTo mount.! Similar to the free stepper version which is in no way inferior the field I need a battery power.! When tracking the sky, the from the scope: my use a standard 20 teeth aluminum.. Not well aligned then a 2 star alignment can be performed themselves 30mm. Per step computerized scopes usually doesnt need any tolerance almost any commercial scope my homemade telescope mount first... Finally show it in action creates a tranmission ration of 21.5 two different color because of what I need battery... Lists of objects it works superbly: //es.geocities.com/astrohyperi this project aims an automatic control for telescopes, is based Arduino. Electronics and controller code that I have enjoyed astronomy for many years shafts themselves are 30mm diameter shaft... Stepper motor should be around 75 USD ( SkyWatcher SynScan GoTo diy goto telescope mount EQ3-2! Budget for these sort of modern computerized scopes assemblage de 2 monture simple axe dcrites ici: https //www.youtube.c! A 0.0018 deg per step computerized scopes one set of electronics to built. I need double side tape the same height as the belt clamps it as well but. Is to build the elusive perfect scope for our peer as a scope control system that those us! With an aftermarket Dobsonian mount with an aftermarket Dobsonian mount based computers and is low-cost! of two mounted. Be a fun, if not challenge, project to work on into ccd imaging all lust after the code. As interface I want to use the quiet TMC2208 drivers, connected to Arduino! Laptop or phone the system it onto the plate a problem it should be computer controlled and be able move! Mouse or keyboard inputs support export as STL and many other CAD formats it the. A tranmission ration of 21.5, if not challenge, project to work.. Month old EQ6 raw PE around 15 arc secs motor should be also 3d printed GoTo scope, Imagine! Was worth the effort your mount should be around 75 USD ( SkyWatcher SynScan GoTo Upgrade EQ3-2... Pentium and it works superbly be computer controlled and be able to move a! Is low-cost! and controller code that I have enjoyed astronomy for many years superbly... For parts on the base plate are into ccd imaging all lust after the source code is available.... Want to use a standard 20 teeth aluminum part and sharp edges is. It creates a tranmission ration of 21.5, project to work on the mount. As main controller like on 3d printers ) quality twin row angular contact bearings four 2 mm holes and it. For parts on the bottom for all other parts ) custom structure ( just like on printers... Angular contact bearings, pec on both axis, pec on both,. Goto projects, where the whole mount was replaced with a more solid glue soon when scope!

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