SpotMicroESP32 with reinforced shoulders

thingiverse

This is a remix of Michael Kubina's [SpotMicroESP32](https://github.com/michaelkubina/SpotMicroESP32). It adds a reinforced shoulder joint cover as well as a shorter rear cover and back plate. For the original SpotMicro the limbs connect to the shoulders only via the servo shaft, which in my experience made for a flimsy/wobbly joint. Reinforcing the joint with an extended shoulder attached to ball bearings on the outer limb improves this considerably. My shoulder cover design was inspired by the [Parametric Shoulder Joint for SpotMicroESP32](https://www.thingiverse.com/thing:4817676) from projunk. Notable features are: - Uses 625ZZ ball bearings (as for the original). - The Shoulder Cover attaches to the extended Servo Cap using 3x20 mm screws and M3 nuts (as used by original build). - Hidden screw and nut holes on shoulder cover for a smooth look. - Prints support free. The new medium rear cover is a shortened version of the long rear cover of the original build. The 3x8mm screws attaching the back plate are now rear facing. The back plate has cut-out inserts for a SSD1306 OLED screen and two GX16 connectors. The spot shown in the photos has an aluminium top cover with mounting rails. This was made by Thomas Van Der Sterren.