thanks Phillip,
I tried 3d printing one - a ten hour print ! It ended up 1mm too small - don't know why, everything else prints perfectly :-). I ended up using a 1.25" sight tube that I cut to the correct length (sight tube ID x Focal ratio).
sharkbite,
I had already tried making one out of 50mm pvc pipe but I was unable to get it to centralise correctly in the focuser - wrapping tape around it is not good enough :-(
Andy01,
will follow up with Sidereal Trading
cheers
Gary
Quote:
Originally Posted by iborg
Hi
I don't have an answer for you, but, I am about to 3D print something similar for an SCT (in order to check position of the secondary).
I'll put it on thingiverse over the weekend, and link here. Have a look, if you think it may help, let me know and I can print up another. Alternatively, talk to the 3D printing people elsewhere on the forum, they will do a better job, and possibly know a more suitable design.
Philip
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