Which Duet for a CNC?

Nightowl

Thank you. I've not seen that specific page before, but it certainly helps explain things for me.

I'm assuming the Duet is by default a printer controller - I wasn't aware there was any difference in the control system - so I definitely need to use the M453 command!

Is this a once-only command, or would I need to do every time I power up the controller?

Thanks

dc42

@nightowl999 said in Which Duet for a CNC?:

Is this a once-only command, or would I need to do every time I power up the controller?

You would put that command in your config.g file on the SD card, then it will be executed automatically at power up.

Nightowl

@dc42 Thank you

chernogorsky

Sorry for asking in an existing thread, but it looks like fitted (delete it otherwise)
@dc42, same question - whats the best Duet for CNC
Im starting a new project (printnc), and one of the option I'd like to check is d3.
My time estimate is in +- 2-3 months from now I'll have the mechanics, so by then I need to have some controller

Any chance that MB6XD (if I understand it correctly) be available, or its better for aiming to 6HC + 1HCL in case I want closed loop ? or even just 6HC + external drivers.

dc42

@chernogorsky if you want to use closed loop drivers then either use the 6XD and use external step-servo drivers, or you can use a Duet 3 Mini and EXP1HCL boards. Neither is completely ready yet: the 6XD won't be in production for about 2 months or more, and the EXP1HCL firmware is still in the beta test phase (but we hope to have the first stable release soon).

chernogorsky

@dc42 thanks for the reply
May i signed for alpha/beta for 6xd
I have all the experience with d2/d3 and really wanna try it. Willing to test only recommended cl drivers
Dont want put 4x1hcl and waist all internal ports

dc42

@chernogorsky I've asked for you to be added to the queue for the 6XD.

zsc100

@dc42 Is there any update to this. I also want to look at a retrofit CNC application and I need step/direction output. I really wish there were at least pads on the PCB for this even if no headers. I'm an EE so I assume I can scope/find them on the input side of the stepper drivers, but that's a PITA. Is there no one board solution as of now? If not I'll go ahead and grab the Duet3 Mini and just break out the Step/Dir myself.

jay_s_uk

@zsc100 the Duet 3 6XD is already on sale.
Other option would be an SKR3 or Fly-Super8Pro. They have standard stepstick sockets and support CAN-FD

T3P3Tony

@zsc100 I will make a forum announcement about availability through our resellers in the next few days. We are shipping out back orders this week.