Should we use metal enclosures to protect the board? Should we use shielded and grounded wiring to the motors?
My current setup uses the +12v and +5v rails from a dedicated 850W computer power supply. This powers my Smoothieboard, 4 steppers, Fan loads, and a 40W extruder load.
My bed heater (500W Silicone encased heater) runs off 120V AC via SSR.
My electronics are directly below my heated bed with no shielding other than mylar backed insulation. I am not using shielded motor wiring.
The printer is currently driven by USB from a laptop, powered from the same AC receptacle.
I can connect via USB and issue simple commands, but prints fail after only a few moves with a communications timeout.
Next steps I plan to take are to replace the USB cable and then try dropping the baud rate from 115600, but I am also wondering if Smoothie might need additional shielding.