Lateral servo gearbox build(s)

2019-04-29robotsactuator, build, moteus, smmbJosh Pieper

After completing one gearbox, I needed to build at least 4 more of them to replace the lateral servos on Super Mega Microbot (2). So, I got to work. First, I disassembled 5 more BE8108 motors.

Then, I drilled out the rotors, this time using the mill at AA.

Next I removed the stators from their backing. This was painful enough last time, that I tried a new technique using the mill to do most of the work. Unfortunately, one of the stators was critically damaged during my initial experimentation. So, now down to 4 survivors.

4 good stators, one casualty, and their detritus — 4 good stators, one casualty, and some detritus

I went and printed 5 copies of all the printed parts:

And turned down some more internal gears:

Then, I started assembling!

All the parts laid out — All the parts laid out for one servo

Inserts in back plate

Output bearing and internal gear installed

Outer housing fastened

Output shaft bearing installed in planet output

Planet output in front housing

Sun gear in holder, mounted on rotor

Planets assembled with spacer and bearing

Input bearing pressed into planet input

Planets and shafts in planet output

Planet input and stator installed

Rotor installed

Back housing test fit

Repeated 3 more times! — Repeat until I have 4!