If you have many empty Thorlabs optics boxes and a Skadis System this is probably for you. Fits four Thorlabs BX3 boxes: https://www.thorlabs.com/thorproduct.cfm?partnumber=BX03
Prints without supports. Requires two skadis T-Nuts e.g. https://www.printables.com/model/450444-skadis-t-nut-mounting-system-threaded-for-m3-or-un
The author marked this model as their own original creation.