@phaedrux Thanks, that is exactly what I was looking for. It seems to be difficult to find...

@dc42 Thanks for your information. I see ADMINISTRATORS near your name. Maybe this is "only" about this forum or maybe the whole Duet3D website.

You compared the stepper drivers of the different boards in your post and that is very helpful. I wonder if a comparison of the different Duet boards exists somewhere on this website.
Sure, I could go to each individual product and look at the details but a comparison of all of them side by side would be a great help - and I am sure not only for me.

@o_lampe Thank you for your reply. Similar to above let me ask you: If the Duet 2 on your CNC would fail and if you don't care about paying more: Would you replace it with a Duet 3? And would that be a lot of work?
Or just replacing the board, doing some settings (maybe a few hours) and then you could continue like before?

I know little about the Duet controllers. Maybe as an example: If I have a PC and the graphic card does not work anymore. I would buy a new card, maybe from the same manufacturer, install a new driver, and then the PC would work just like before. Is that similar with the Duet 2 and 3?

@fcwilt Thanks for your reply.
If one of those Duet 2 controllers in one of your printers would fail, would you replace it with a Duet 3 and would you be able to continue without major changes? Or would there be a lot of work involved if you would change to Duet 3?

And about the Mini 5+: I don't care if I pay 100 GBP more. My concern it more that there is a lot more information out there about people who use the Duet 2 with their CNC compared to the Duet 3. This is why I consider the Duet 2.

I plan building a CNC machine and I am convinced the Duet controllers are a good choice. But which one?
I see the WorkBee from Ooznest uses the Duet 2. When I look at the specs of the Duet 2 and the Duet 3 I see that the Duet 3 supports higher output current - which allows more choices of more powerful of stepper motors.
Mostly that is the reason why I think about buying the Duet 3.
What I don't know is if I can use the same software and settings for the Duet 2 and the Duet 3. And maybe there are other reasons why I should use the Duet 2 instead of the Duet 3.
I searched but unfortunately I didn't find anywhere a side by side comparison or an article like: Which Duet is right for me?
I am pretty sure such a comparison exists somewhere, but where?
Thanks