I designed this refractor telescope to fit a 63mm diameter, 500mm focal length lens. Because of the size, the tube is divided into 4 main 100mm parts, with one of them containing a dovetail for fixation. The focuser is made for 1.25" eyepieces. I later made an adapter to fit the focuser from ANicolai: http://www.thingiverse.com/thing:2130522, because the helicoidal focuser introduced to many virbations, especially at high magnification (end_tube2 and porte_occ2.

I used part of the threading library from Trevor Moseley (http://www.thingiverse.com/thing:27183).

Tronxy X1

No

No

0.2

20

Mostly 0.2 mm layer height, except for the main tubes, where i went 0.3mm for the main section. The main point of concern is to have a perfect bed adhesion (with raft or not) to ensure that the parts will assemble in a straight tube at the end. Support were used for the end part (the focuser one).

Avoid printing with transparent or semi-transparent PLA (had to use the blue one, which is semi-transparent). This cause some residual light to get to the eyepiece.