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Anything related to printer controllers not being Duet, RAMPS or Sanguinololu: microprocessors, motor and heater driver circuitry, gEDA/KiCAD issues, soldering tips, etc.
Schematics of extension board Builder3D printer - 2 years ago
I recently acquired a defective older Builder3D-dual feed 3D printer. As far as I can determine, the add-on extension board is defective, since when I mount it on the main board, the power supply which should be 5V at several points that I measure, drops to a waaay to low voltage. What I'm looking for is the schematics of thisThe main board is extension board. (Check the image attached.. the exby ppeters - Controllers