Snap fit case for Gravitrax lift with PWM and USB

prusaprinters

Just a small case to mount a PWM and a USB Board for powering a motor (in this case a gravitrax lift. No more fiddling with a battery case or empty batteries. Just plug in your existing micro usb power supply and let your kids control how fast the lift is going.My components:https://www.amazon.de/gp/product/B07RDHNL9H (Micro USB Breakout Boards)https://www.amazon.de/gp/product/B08Y5L8HFB (PWM / Drehzahlsteller)https://www.amazon.de/gp/product/B081JNKDJB (DC 6V 70 RPM Motor GA12-N20)3mm Screws for mounting electronic parts. No inserts, just screw them in.The fantastic modular lift (you can use any other if you like):https://www.thingiverse.com/thing:4751904  (Marble track - Motorized Lift 2021 version (v4))Notes: the PWM also has a real “off” setting (just turn the knob full to the left). the PWM shows if it's “on” or “off” (status LED)the pictures display my first version. I added a small hole for the status LED later, which is included in the model here.printed without support.