Optics breadboard (metric)

Optics breadboard with tapped holes and countersunk mounting holes. Inspired by the Thorlabs standard Aluminum Optical Breadboards. Holes are threaded for M6 bolts, countersunk mounting holes also accept a standard M6 bolt. The 225mm side includes two holes which accept a standard small Thorlabs Optical Post, Ø6 mm, to connect multiple breadboards together.

Note that threads are printed fairly tight, and may require some force to thread a bolt into. I recommend threading in a bolt from the top first, the small chamfer and neater print surface will make it easier to thread into and chase the threads out, following which you should have no problem screwing things in from the bottom either.