diy motorized equatorial mount

The next logical step up from a manual EQ mount is one that includes a motorized clock drive, that allows you to take long-exposure photographs of deep sky objects in space. You can observe detail on a planet's surface at 400 power or more Some computerized telescopes will tell you where the telescope is pointing – but only after you move the telescope manually. My wife and I spent a good portion of this time driving around the beautiful American Southwest and the many awesome parks on and around the Col… using a 2 inch adapter ? Tomas, Odd that I had this question twice today! Cheers. Done. An avid astrophotographer for timelapse, deep-space imaging, lunar, planetary, and star trail imagery, he is an all-around jack-of-most-trades for night-sky photography. Obviously my angle on it is too high, the scope points down quickly. Great build. He never tired of using it. That’s likely why you are here. Mar 6, 2013 - A summary about the DIY german equatorial telescope mount I have made and used for astrophotography in my observatory As you can imagine, this point and observe method of … Otherwise this annoying popup will happen all the time. Used ones can be obtained for less, but why buy one when you can build your own and learn something new in the process? And it's about ten thousand dollars cheaper I’ve been trying to figure out a way to drive mine. Cheers. I’m glad I’m not the only one having difficulty deciding which variant of an EQ platform to go with. You can star hop by grabbing the scope and moving it around the sky by hand. a low-profile focuser. I am intrigued by what you used as the rear pivot bearing. SkyWatcher EQ3-2 Deluxe Equatorial Mount & Tripod. From looking at that motor, it looks like it could work nicely, actually. You know, I didn’t actually measure that. through. I’m at 32 degrees south. How to Build an Equatorial Mount for Long Exposure Astrophotography: Last Fall (2011) I took full advantage of the fantastic sabatical policy where I am employed. Equatorial Mounts. Sure! It was built with a used Edmund Scientific mirror that I bought at an astronomy flea market for ten dollars. Sky-Watcher EQ6-R … I adapted the VNS segment to my latitude (43 degrees vs. Cory’s 41 degree design) by stretching the height accordingly. £275.00. Yes — the back height is important, but it wouldn’t change the curve — that is just to help you aim the axis at the celestial pole. The trick is that the cone has been cut down to its most simplified form such that it can just support the telescope, without needing to fully surround it, and is only allowed to roll a few degrees, so the telescope doesn’t fall off. In order to keep things lightweight and solid/smooth for the bearings to roll on, I used thin aluminum sheet metal. At my altitude, 32 degrees with the south pivot design, I am afraid the board is going to become too long. For visual use, this really isn't necessary, even at higher powers. The page with the alpha and beta angle references is on this page: Please enable Strictly Necessary Cookies first so that we can save your preferences! You can also put leveling feet on each leg, which is neater looking but takes more time to adjust when setting up. Hopefully using that, you will be able to see how I created and designed the curved vertical sections, and the angles and such. Like any equatorial mount, an EQ platform must be polar aligned … This means my design will be oriented to easy assembly from commercially made parts, and so at higher cost than Corey’s. You must at fairly high altitude. Thanks for the photographs, I can understand the design somewhat. Here are a bunch of photos of my design: I noticed in your last post you mentioned you rewired to a better power supply. Not rolled along the ground – rolled in-place, around the axis! I hope you and yours are doing well and enjoying the holiday season! However this also is about to stop for a while. One thing I didn’t mention that I thought was very important, was that I used 2-3 coats of clear polyurethane (the water-based kind) on the entire wood surface, because I didn’t want ANY warping of the wood due to all the moisture in the air from being outside. I used SketchUp to create a 3D model of the cone and printed out a template from there. However, something to note is that a different size roller bearing that makes contact with the sector surface will require different motor speeds to accurately track. I see on the Vogel website that Beta is chose to be 20 degrees. The Will this design work for my place? You can find out more about which cookies we are using or switch them off in settings. Thanks! Thanks! It might give you an idea of what I was getting at! I know others have used my modification of the other designs out there, but I haven’t seen one that looks so similar and has some really nice improvements. Payload: 30 lbs Power Requirement: 12-Volt DC Built-in Polar Scope: Yes Autoguider Port: Yes. You have to push it around to follow what you're viewing. I just built my version of based on Cory’s design. The little Tasco refractor in the background was later sawn in half and made into a finder scope, a fitting end for Once the axis of the mount is aligned with the However, while there are plenty of constructed examples, there seems to be little on how to design them. I am from India , My latitude 20°North . He is also an internationally published and commissioned astrophotographer, where his photos have been used in multiple online and print publications. it is also much easier to use. setting circles and focuser came from Jaegers Optical way back when. I anticipate many aspiring amateur astrophotographers will quickly outgrow a non-motorized equatorial mount. That should give about 48 minutes of viewing. I’m very curious to find out how well it works. It’s a large-ish scope (14″), so that was immediately an intimidating project. Were you able to achieve focus since this is a trouble with dobsonians and cameras in general? Thank you. Add a wedge to … Just point it to the celestial pole (north or south), level it, sit the scope on top, turn on the motor. I need to stop. From your SketchUp 3D model file can you find out what your COG Height actually was for your 10″ Zhumell Telescope? Belay that. This allowed me to use a tiny, 1/2-inch secondary mirror with It's certainly more Unfortunately, we must enable this functionality to comply with the EU regulations. Telescope Mount Type: Equatorial; Type of Electronics: Manual Mount - No Electronics; $249.94 . That is math I don’t want to do now! My estimates of your scope’s COG is: Height (Y) COG Run (X) COG Hypotenuse COG necessary. Manual and goto Equatorial mounts ideal for astrophotography when tracking the night sky. please help me anyone . Thanks, I wanted to simplify things as much as I could while still getting decent performance. Kindly help me with more specifications about bolts and other necessary accessories for the EQ platform and also for a simple barn door tracker. I’ve looked through dozens of pages and still don’t have a clear image of the whole construction on these things… Mind you I’ve been specifically looking for a model that uses a Celestron motor drive, because like I mentioned, like 3/4 of the designs I found have a goofy DIY project for the motor, with a few parts from John Doe’s website, and Joe Blows hardware store…. Equatorial Mount Diy. My location: Trichy (10.85 N) | Telescope: GSO 8″ Pro Dob | Camera: Nikon D5200. Low tech, cheap, effective. It took me a long time to figure out exactly how they really worked and then come up with my own simplified design for it. Learn to photograph the Milky Way, star trails, the moon and planets, and deep sky objects. Hi Mike — that is just a large fender washer that makes contact with a large roller ball transfer mounted bearing. I have recently found some of the images I created using the setup you see above, and I even found the original SketchUp file I will post for download. Why did you use the jig when you have already printed the form of your VNS bearings ( I have a copy from reinervogel.net so ready to go). Correction! By the time I added the off axis guider, the filter wheel, focuser, and finally a camera on the scope I lost a lot of sky due to everything hanging off the back. The 8-inch f/8 reflector in the back was one of my first scopes. I cut the At first it was a little too slick for the bearing, but after I lightly sanded it to rough it up slightly things worked well. I’ll update the post in the next few days with some more detail from what I can remember. Add to cart . The two-inch iron pipe that I used for the mount was I do appreciate your comment about using a “proper” EQ mount but the platform is suitable for my purposes. I have an 8 inch Orion Dobsonian, and expect I can get about +/- 6 degrees of motion from the platform. I was able to do some pretty good DSO work at 1200mm f/5 (the scope above, same setup, up to 45-60 second exposures at times), and it was great for extremely-high magnification lunar and planetary. A GEM, by its nature, only has to be moved in one plane to follow an object. Any warping would alter the tracking accuracy…. First, since the Dobsonian is basically an alt-az mount, you have to push it in two directions Actually, that bolt is simply for transport purposes. Equatorial mounts can also be expensive, particularly if they are computerized for "Go To" capability. How did you determine this angle? I own a 7x12 mini lathe and a micro-mill, so I'm not going to be making 24 inch … However, it can be noted that the motor shaft bearing diameter was somewhere in the vicinity of 2cm or so. Enjoy motorized tracking of celestial objects with this precision mini motor for the Orion EQ-1 equatorial mount. Keeping this cookie enabled helps us to improve our website. trying to view a planet or lunar object at high power. This two-part project aims to deal with this inconvenience. Motorized Equatorial Mount - posted in ATM, Optics and DIY Forum: Hi everybody! Motorized & Computerized Equatorial Mounts. , Good luck! Its f/8 focal length made the tube over 64 inches long. I opened your 3D model and tried using SketchUp’s “tape-measure” tool to estimate the Height of your 10″ Zhumell Telescope COG. I haven’t tested it out yet (it’s been a long, cloudy spell), but hope to soon and will report back on its performance. I’m an engineer, so I’m used to using math to get at problems – after a couple of days of thinking about these things I realized that the goal was to keep three points on the surface of a cone with it’s axis aimed at the pole. Good catch! All the best with your build, and post a link to some photos of the completed platform when you get it done! I’m by no means a pro at this, because it was my first and only platform I built. That made things a lot easier to picture mentally. I have pretty much decided that a vertical north/south sector has to be easier to set up (half the number of roller bearings to start with) and a pivot for the rear south/north sector (another less complicated item to make). Others allow you to reset the platform manually, simply by pivoting it back to the starting position, which takes only seconds. Good luck! The motor handled things without a problem, but I did run into an issue with the battery not lasting long enough, so I created an external power source to keep everything stable. I was determined to just use pieces and parts around my garage for this, so I am sure there is a much better way to make it. $399.98. In Stock . don't mind spending an extra 300-600 dollars, this is an effective solution. This project was designed to be much cheaper commercial equatorial mount trackers and to be easily (and cheaply) modified and customized, a feature many other trackers lack. I also have a 10″ dob and am making a platform for it, but this is a very slow project (i have too.many other commitments and hobbies!). You can buy fancy motorized “equatorial mounts” for telescopes and cameras, but it’s way cheaper and more satisfying to build your own simple “barn door” tracking mount using a long bolt or threaded rod as a drive screw. As for the motor shaft, I used a machine screw, bolts, and bushings to create a cheap and dirty bearing that would support the weight so the motor itself wouldn’t have to because it’s so small. It was also cheap and available. Sorry for the delay in replying. It’s similar to what I used. A well-made Dobsonian telescope is an excellent observing machine. Even when the tube is pointed straight up, this is easy to do. I don’t believe the angle of the pivot is critical, but the height vs. the front bearing is. The legs consist of three wooden triangles bolted I’ve put pretty much everything I had regarding my EQ platform on this post. A summary about the DIY german equatorial telescope mount I have made and used for astrophotography in my observatory. You started out with pictures of cones. This project uses a Feather M4 and Trinamic's TMC-2226 stepper motor driver to enable you to take long exposures of the night sky with just about any camera. The author states that he has since sold this setup and even recommends that one should gravitate towards a real EQ mount for any serious AP work. Whether you're looking to upgrade from your present telescope mount or are seeking a more robust, motorized equatorial system for a new telescope, you can't go wrong with the smooth-moving, sturdy Orion AstroView EQ and EQ-3M Motor Drive Kit. I am about 36 latitude. I followed the pictures closely, and relied heavily on Cory’s SketchUp drawings to better understand the concept and get the angles and dimensions. Astrophotography is possible with a Dobsonian and equatorial platform!. The optional encoders will keep track of the scope's position. setting-circle indicators out of brass and later added a red LED underneath each one to illuminate the setting I see your EQ platform is different to others I have found online. Keeping things simple is usually the best. I’ve just stumbled onto eq platforms in the last few days – I’ve preciously thought about trying to build an equatorial mount for my Dob, but was thinking of a “full” mount, that would let the scope rotate through a full 360 degrees. France - Paris - Arc de Triomphe telescope_sq . The tube was made from a concrete form (sonotube) and the mount was built entirely of 2-inch plumbing parts. What exactly would you like to know? It seems is made of several parts. I believe the latitude where I lived at the time was close to 42 degrees north. Cheers. axis of the earth, you only have to push the mount in one direction to follow the arc of the stars or a planet through the heavens. This site uses Akismet to reduce spam. I may also look for ways to substitute more complex motor control for complexity of assembly, because I have knowledge in that area. (I didn't build it). painted black and fitted with a threaded rod to fine-tune manual tracking. I actually filed down one side of the threaded axle just a bit to provide a flat surface for the screw in the axle mount to butt up against. This becomes a big problem if you are I’m looking at your Sketchup drawings and measured the angle of the cones at about 41 degrees. This is just a sketch, the measures are not the real ones yet. But a Dobsonian has a number of problems But our planet does spin, and we must deal with it. Figure 4-38 shows an EQ platform at one extreme of its motion, with the scope about 7.5° off vertical. However I’m still at a bit of a loss as to how to design the vertical segments. It was a lot of fun to put together, and was made immensely easier owing to the simple, elegant and economical design. Orion 10" Newtonian reflector telescope on motorized German equatorial mount. Do you recall any details of what you used? New house, big section and I have my work cut out. If you have the building skills and tools, it can be very cheap, but, I can tell you it is also worth it to move on to a proper motorized mount! I own the setup shown in the picture above: Skywatcher 200PDS, a 200 mm f/5 Newtonian reflector, mounted on a EQ5 equatorial mount. Pictured at the left is a magnificent

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