2" Cheshire Eyepiece and Collimation Cap

Cheshire eyepiece and collimation cap designed for 2 inch focusers for use without adapter.

Printing and slicing

Make sure that seam on the lower cylindric surface is in the prepared groove. Slicer should put it there by default. Otherwise a print seam that is protruding out is going to slightly misalign the piece in the focuser.

I recommend dark/light/dark fillament scheme on the Cheshire piece to get better view contrast on the crosshairs.

Onshape source

Support

All my work is free and in the public domain when possible. If you find it valuable, you can support me on Ko-fi .

Telescopes collection

If you are interested in other telescope and astronomy related items that I have made, have a look at my Telescopes collection here on Printables.