Hi, Did not read entire thread. tldr
I have completed 2 builds using 100mm x 140mm of 2020.
1 of alloy 2020 and 1 of 3d printed 2020.
hope this helps.
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Thanks, yes this helps to have someone who’s completed a couple to confirm! So, is the latest (somewhat) complete build notes here: SatNOGS Rotator v3 - SatNOGS Wiki , or do you have a better resource?
I plan to build one with Aluminum 2020’s, but am curious about how well 3d printed frames worked for you.
Thanks again! W.
Hi, I too have built at least two and help built another one (yes, SatNOGS rotator is still alive in 2026 
) and all using the 100mm and 140mm alumunium, I think there is so called v3 and v3.1, the wiki top picture looks like the v3 but all the instructions are for the newer v3.1 in which the top and bottom part is flush.
One thing for sure the alumunium frame is really solid, but it is on the heavy side if you compared to another portable rotator! I have built one “portable version” which can be assembled/disasembled within 5 minutes without any tools.
Yes I am still using that wiki as reference, but all are using CNC Shield and Arduino Uno as the controller.
Hope that helps!
Adhito
YG4SLJ
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Great! I will proceed with 100mm and 140mm according to the wiki guide, thanks for the info.
73 Wayde VA3NCA
(BTW; love the look of that portable unit! Is it all 3d printed, including the frame? are the stl’s available anywhere? )
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Thanks!. It’s aluminum frame and 3D printed internal like the original. But I add 3D printed clamp for the azimuth and elevation arm, also quick disconnect power and data cable.
Yes of course, I will search for the part files (it was scattered between multiple computers 
) and upload it somewhere, but please don’t expect ready to print parts as it was still experimental so you may need some tweaks. Just think this as a future upgrade kit as it’s compatible with the original instructions.
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