T2 to T2 extender
thingiverse
I misplaced my ZWO T2 Female to T2 Female 11mm extender/spacer that came with my ASI183. T2 is M42 with a 0.75 mm per turn pitch. I added a 0.3mm extra tolerance at 0.1mm layer heights. But customize to your hearts content. Print it in black, orange was only used to get better pictures of the thing. The OpenSCAD script contains the threads library by Dan Kirshner found at https://www.thingiverse.com/thing:1938150 Since this library is GPL, this thing is also GPL.
Download Model from thingiverse
With this file you will be able to print T2 to T2 extender with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on T2 to T2 extender.