January 18, 2025
Description
This is a simple microscope objective case I designed to fit Mitutoyo M Plan Apo and similar objectives. There is enough room to house pretty much all 95mm parfocal length objectives and the box is wide enough to fit Excelitas high resolution (HR) objectives. The inner objective thread is M26 x 0.706, but would most likely fit M26 x 0.75 objectives from Nikon too, although it isn't ideal.
The objective case lid should be printed with higher detail, e.g. 0.1mm layer height in order to print the fine inner threads well and without strings. It should be positioned thread side up and doesn't require any supports. The case body can be printed at 0.2mm layer height just fine as it only has external and larger pitched threads. It should be printed upright on a bed with good layer adhesion and doesn't require supports.
Update: Added a case lid featuring M26 x 0.75 threads for Nikon objectives by request. Please note that I do not own any Nikon objectives so I couldnt test the fit.
Update 2: Added a shorter case.
Good luck and have fun!
License:
Creative Commons — Public Domain