P4AC 4 axis controller
thingiverse
This replacement unit works with RepRap and MakerBot's stepper controllers, providing four Pololu 1201 modules for adjustable microstepping (from full to 1/16) per axis. It suits Gen3 motherboards with a 40-pin connector on the steppers board and 10-pin IDCs on the other end. Optionally, it can support Gen4 boards via 6-pin IDC connectors. Endstops are compatible with CDROM-style connectors for all four axes, allowing mechanical endstops integration upon availability. The fourth axis features a 4-pin header (GND/Ena/Step/Dir) breakout for seamless Extruder Controller connections. Easy assembly is ensured by all through-hole soldering. Find complete instructions and BOM at http://www.johnyang.com/p4ac
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