How to add extra drive in duet2 wifi?

[RodrigoRMaraujo]

Hello everybody.
I read in the documentation that it is possible to add extra drivers to duet2 without having to use a duex. If I misunderstood this, it was possibly my translation error.

Stepper driver expansion
Up to 7 additional stepper drivers, of which up to 5 can be TMC2660
External stepper driver support
Up to 7 external stepper drivers when not using DueX expansion board. Signal levels are 3.3V. A 4-channel expansion breakout board is available to level shift them to 5V.

To buy an original duex and bring it to Brazil, we pay more than 3x the value of the plate, due to the exchange rate, import fees from Brazilian customs and the extremely high freight. Unfortunately, the only viable option was the Chinese versions of aliexpress, which suddenly disappeared from the site due to lack of chips (makebase reply in chat).

I would like to have a triple Z on my hypercube and to do that I would need an extra driver on my duet2 wifi. I use bltouch connected to the expansion connector, I don't know if it would be possible to add an extra driver like that.
Could someone who understands how to do this share?
Thank you very much.

[droftarts]

@rodrigormaraujo see https://docs.duet3d.com/User_manual/Connecting_hardware/Motors_connecting_external

You can add up to 5 stepper drivers to the expansion header, and 2 to the CONNLCD header. External drives must use 3.3V signalling, though most smaller ones such as stepstick do.

Ian

[RodrigoRMaraujo]

@droftarts
Thank you very much! I hadn't seen this documentation yet, it seems to be new, I don't remember having seen it.

[droftarts]

@rodrigormaraujo there’s a similar page on the old Dozuki site, but I tidied it up and added quite a lot.

Ian

[RodrigoRMaraujo]

@droftarts An excellent contribution, thank you very much for this!