Powering a Duet Wifi with external drivers for a CNC

misan

Hi,

I am currently setting up a Duet Wifi on a Cartesian CNC machine using external drivers (physical ports 5,6 & 7 for X, Y and Z axis). Therefore I am not using the built-in drivers and I have no heaters either (not a 3D printer but a CNC).

My question is about how to apply power to the Duet Wifi board best. I have been using the USB port during the configuration process but once that is done ... do I need to apply 12 or 24 V power supply to the power screw terminals? Or just a microUSB phone charger can do the job?

With the latter all seems to be ok, but I get an odd behaviour as the web page shows "Off" status while the machine is moving processigng g-code file while the XYZ coordinates keep on updating (and the Pause button appears ghosted so I could not momentarily pause the file being "printed").

Maybe I am cutting corners powering it by USB?

Thanks a lot,

misan

dc42

The firmware expects you to provide at least 10V for the drivers. That's why the status is shown as "off".

misan

Ok, got it.

Thanks @dc42 !

misan

@dc42,

Is the pause button on the web interface being disabled now a consequence of my poor choice for power supply?

Will that button is active once I power the board through the 12-24V power input?

Thanks!

dc42

@misan said in Powering a Duet Wifi with external drivers for a CNC:

Is the pause button on the web interface being disabled now a consequence of my poor choice for power supply?

Yes, the Paused state cannot be entered from the Off state.