This is a 3D printed reproduction of the fine focus knob for Nikon’s TE2000 microscope. One of the fine focus knobs on my microscope was missing so I used the other as a template to render it in CAD and 3D print a replacement. I figure there are other microscopists out there that have my same situation so here is a solution.

This knob mounts to either side. You will need two M2 x 4mm screws to mount it. I can provide screws upon request.