Topics created by 3dprinter

@3dprinter said in Binder Jetting Printer:

Thank you so much for your answer.

It's a powder bed machine with a recoatinger and a printhead. Overall it has 5 motors and one and perspectively two heating units.

The printhead controlboard currently needs 8 Arduino pins.

A Duet WiFi or Duet Ethernet provides 5 drivers, one high current PWM output (intended for bed heater), 2 medium current PWM outputs (intended for extruder heaters) and 3 low current PWM outputs (intended for fans). So it satisfies your basic requirements. The expansion connectors have about 14 more outputs, of which 5 are PWM capable. So more than the 8 that you need. The signal level on these pins is 3.3V.

Duet 3 also meets your requirements, but is more expensive. Its main benefits are higher current motor drivers, dedicate SPI bus to connect a Raspberry Pi, and expandability via CAN bus.

HTH David