Which Duet for a CNC?

Nightowl

@markz
Ah, interesting comment about WiFi over Ethernet.

My workshop (read "garden shed") is only where the machine is ru (MS Surface Pro) and not where the design takes place (in the house on my Mac), and the wired network is extended with PowerLine adapters - which also provides an extension to my WiFi, but I hadn't really considered WiFi because of the distance. What's important is both machines can connect to my NAS drive, which is where all the design and g-code files are stored.

If this is no longer an issue I would consider WiFi, as long as I still had shared access to the NAS, but I'm not sure what benefit there would be for me.

Nightowl

@droftarts

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.