I can't get decent photo from back of PCB that doesn't glow or is out of focus. But already checked for bad soldering or any shorts. Probed resistors, diode even LEDs, all in spec. This board is prototype, yeah i know that soldering them at bottom would be better way to do it. As for how i use it, stepstick have "extension" as seen on streamable vid. Later i would just replace caps and mount tby Dominium - Controllers
This is Sinaptec 3d printer controller board i have build while ago. It runs on Arduino Nano V3 with Teacup Firmware and i have on major issue which i cannot solve by myself. Controller cannot heat up hotend, after sending gcode. PC shutdown (i suspect it takes too much 5V current from USB ) So far works: pc connection, motors, thermistors, endstops What worries me the most is the second pic.by Dominium - Controllers