I’ve been mulling over a simple physical design for the STM.
My primary design goals are ease of finding parts and ease of assembly.
The support structure is an outer support frame with a heavy inner platform suspended by rubber strips for vibration isolation.
The rough approach of the microscope will have a stepper motor driving the scanning head towards the sample. I’d like to use gearing to reduce the distance driven per step, and I’ll be using a stepper motor driver capable of providing 16th steps (that’s 0.1125 degrees on a typical 1.8 degrees per step motor).
I’ll probably need help in designing the rough approach – any mechanical engineers out there? I have access to a laser cutter and a 3D printer for making gears.