I just bought a Gradus M1 with 3x BSD109A stepper drivers to retrofit a 6040 CNC router. I am new to CNC so I have a few basic questions: 1) The Gradus can accept 12V to 48V input. What is the preferred input voltage (12V, 24V, 36V, or 48V)? 2) Do I need to use shielded wire for the stepper motor wiring? Any other tips on setting up the Gradus are welcome. Thanks,
1) Higher voltages = faster step rates. Go as high as you can safely go (remember to think about PSU spikes too so dont go all the way to max either) - 24v is fine for most people 2) Depends. For the motors on their own, no. But the EMI eminating from the motor wiring can interfere with other peripherals if you do use others like Endstops, etc. In that case properly shielded and grounded cables helps...
