Topics created by Peter_3D

@OwenD said in Driving a Relay through extruder stepper output:

What is your usage case?
If you're not FDM printing, but instead trying to control an external device via the relay (like say a welder), you could probably set the machine up in laser mode.
See M542
https://duet3d.dozuki.com/Wiki/Gcode#Section_M452_Select_Laser_Printer_Mode

I think Owens idea might fit the bill. You can configure the heater output to be a laser output which will energize the solenoid when you're moving with laser on. Silimarly with CNC mode and spinde output I guess.

Take care to ensure the output you use have a flyback diode to supress the emf from the solenoid, I think all recent Duets have diodes on the heater outputs but not the fan outputs.

@Peter_3D said in Leapfrog Creatr HS two steppers on y axis:

Thanks Ian. If I were to go with the "in series" option, connecting the two Y axis steppers to the Z axis driver with two sockets, how would I deal with configuring voltage for the two motors in series? Would the voltage at the output of the driver need to be doubled? Thanks, Peter

The stepper driver deals with the voltage, all you can do is set the current. It's better to be running on 24V than 12V, generally. For more information on choosing and configuring stepper motors, see https://duet3d.dozuki.com/Wiki/Choosing_and_connecting_stepper_motors

Ian