search

beniroquai / Opentrons-Microscope-Platereader

Other
18 stars 0 forks source link

Whole 3D printed Stepper-based focusing mechanism #7

Open beniroquai opened 3 years ago

beniroquai commented 3 years ago

The solution with the solenoid was not quite satisfying. So I tried this naive attempt to have a conic spiral screw (proper term?) pushing the focusing mechanism. It's precise and fast and for the 10x lens sufficient in stepsize. Will need to characterize it. The Thread can be made finer for sure. focusmechanism

What do you think @theosanderson ? It is slighty more expensive since you need a 3rd NEMA 11 motor but will integrate nicely into the GRBL-based openflexure software: here.

beniroquai commented 3 years ago

Surprisingly, it works very well in the very first attempt: focusandshift