Re-Remix Pi Microscope

I printed Bram109's version, bought 'some' brass inserts. Apparently not large enough diameter inserts. Grumble. Plugged up all the screw holes and made them to accept an M3 0.5 screw. Changed the Mount_Main back to a clamp. Noticed as I was publishing this I didn't quite leave a slit all the way to the shaft. A quick run of a hacksaw blade should take care of that. Should still be able to use Spur_Gear, Camera_Mount, Base and Mount_Rasp_Pi from Bram109's design. Glad s/he made a mount for Pi 3 and 4. Thanks Bram109!!