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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.
SKR 1.3 Power Problems - 6 years ago
I recently bought an SKR v1.3 and, after struggling with the stallguard feature in the attached TMC5160s, I put a scope on it and was shocked to find 2-3V of ripple on the 5V switching power supply even though the 24V input had only 120mV of ripple going in. They do seem to have put some thought into the filter network on the 3.3V supply (not that it helps much with right around 1V of ripple), bby mma3d - Controllers