Designed by JZ, https://alanz.info/
This is a filter drawer that houses a single 2'' filter that you may want to use between your telescope and your camera. I've added both a Nikon-F mount adapter and a Canon-EF mount adapter. Both adapters are designed to give the DSLR a standard 55mm flange-to-sensor distance.
One side of the drawer connects to the camera, the otherside accepts 2'' barrel and locks with thumbscrews.
Try to print with higher wall thickness and infill to increase structure rigidity. I use 3 wall line counts and 90% infill. I don't think 90% is really necessary, but I did this mainly to block external lights. You may also want to consider painting the inside for better light blocking.
I use 0.1mm layer height for the filter holder and 0.2mm for the drawer body. The filter holder has M48 0.75 threads on it, so smaller layer height will help.
I think all rigid common filament should work (PLA, ABS, etc), by "rigid" I mean not flexibile, e.g. TPU. I printed mine with carbon fiber reinforced polycarbonate, which wasn't really necessary but I happened to have some laying around.
There is indeed one part called "TPU_locker" that you may want to print with TPU. It isn't really necessary, but good to have if you have TPU filament.
- M3x10 screw x 4
- M3 thumbscrew x 3 (or just use M3x8)
- M3 nuts x7
Don't over screw the filter since the thread is 3d printed!