So, am curious to see what others have designed and built and proud to show off here on the homage to Crayford thread. I pointed it at distant trees and had no problem bringing the image into focus with all of my eyepieces. It features 2 semicircular arms, and mounting points for the trusses (T-nuts are fine), as well as a lid to keep the mirror safe when the telescope is not in use. This design could be adapted to practically any telescope or focuser, so I've kept my outline on the project brief. After cutting the circles for the side bearings, I set up the jig to cut the curved edges of the rocker sides. To get this arc, I actually moved the radius of the jig in by 1/8 inch. If you mess up, you can turn the hole into a slot, but avoid Ideally, the spacer would be 1 inch long and have a smaller diameter, but I didn't get this one right the first time. When you want to focus, you just open the program and press focus. See captioned photos 22-25 here:https://www.cloudyniractor-focuser/ for more detail on building a flush valve focuser, as Bob mentions. This focuser (see pic at bottom) was motorised by me several years ago, but the motorised system didn't give me very fine control, and the motor running at fast speed tended to make the Artemis camera crash. Crayford focusers are considered superior to entry-level rack and pinion Get hands-on with kits, books, and more from the Maker Shed, Skill builder, project tutorials, and more. The basic points I wanted to cover: What did I end up with? I did not wrap the tube until I had completed the base. Focusers of telescopes. Types, difference, specifications - Star Hunter Orient this assembly to allow you to view an object on the far horizon. Please re-enable javascript to access full functionality. The last time I checked, that particular SBIG camera used on TelescopeGeek had an eight month lead time.A 20" scope gathers 2.6 times more light than a 12.5" scope, therefore equivalent exposures on this one would take 200+ minutes, at least. I didn't receive any confirmation email after a few days, so I tried to send them an email. I don't *do* pretty. This means you lose much of the night's images. If you're not familiar with Arduino, watch some tutorial videos. What materials did you use? Whether you need a basic rack-and-pinion telescope focuser for your homemade telescope project or a premium Crayford-type model with dual-speed focusing as a performance upgrade, you have come to the right place. Sew the seam, and sew an elastic cord into the top to secure it to the secondary cage. 1" Rack & Pinion Focuser. By adjusting the bolts, the mirror can be pointed toward the correct spot. After the glue dried but before the clamps were removed, I added corner braces to all four corners of the tube using glue and brads to hold them in place. The Focuser and other items: (Scope Stuff). I have not yet figured out a better way to hold the tube. Page 1 of 2 - DIY focuser design - posted in ATM, Optics and DIY Forum: Hi I am working on a diy focuser design for my 6 F/8 telescope and asking suggestions for simple focuser.
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homemade telescope focuser