Throwaway time!
I built a custom smart motorized masturbator.
It borrows from 3D printer design, and has a NEMA 17 stepper motor driving a 2GT belt loop around a short length of 2020 extrusion to slide a carriage along a linear rail. The carriage has attachment points that I've put clamps on, that close around a fleshlight-style sheath. There's a brace at the business end that you put around the base of the penis and it keeps everything aligned.
All the parts are custom-designed and 3d printed.
It has an outboard control box that contains:
- an ESP32-based microcontroller with a small OLED screen.
- a clickable rotary encoder that is the single input control
- a TMC2209 stepper driver
- 12v power input and a buck converter to feed the esp32
- 12v output ports for 2 additional vibrators and an an H-bridge module to control them
- stroke duration
- stroke amplitude
- offset from the 0 position
- motion path (just sinusoidal vs triangle wave so far)
It's been evolving for a couple years now and it works brilliantly!
replies(10):