December 20, 2025
Description
This bracket holds the Hubble Optics artificial star and mounts it to a standard 1/4"-20 tripod screw mount. The laser uses a vixen dovetail bracket that mounts to the bottom vixen rail of an SCT. The laser is used solely to point the OTA at the artificial star. See part two for the laser bracket.
PETG, .8mm nozzle, .6mm layer height.
You may need to resize the threaded insert holes depending on their brand. Be sure to measure and resize as necessary. Shrinkage can be hard to judge. I design for .3mm oversize which frequently is slightly undersized after printing. I then ream the holes out for a better fit. I find a metric drill set that increments by .5mm works great. I have yet to encounter a project where I need more precision.
1/4" threaded inserts: https://www.amazon.com/dp/B09MTS6ZZQ?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_11
Assorted threaded inserts: https://www.amazon.com/Ktehloy-Threaded-Assortment-Printing-Components/dp/B0CLKDPN65/ref=sr_1_3?s=industrial&sr=1-3
2 - M5 x 50 bolts, flat and lock washers.
NOTE: The picture shows some spacers on the bolts on the top part. I was repurposing some longer bolts and needed the spacers to avoid the bolts from poking out the bottom.
License:
Creative Commons — Attribution