Duex/Duet and Stepper Motors

[max22]

hi,

I have built a large format printer 405x450x600.
Was trying to get away with using 2x Z Axis Stepper Motors, but I really need 3x Motors, in a Triangle.

Can I please some advice on driving 3x Stepper motor in parallel from the Duet/Duex Boards.
When driving 2x Motors the Chips on the Board get quite warm/almost to warm to touch.
I have added heat sinks and cools fans to the board but I don't want to damage the boards.

I know that someone else must have done this previously as well.

Questions :
Did you use a stepper motor driver amplifier ?

What is Recommended ?

[jay_s_uk]

@max22 https://docs.duet3d.com/en/User_manual/Connecting_hardware/Z_probe_auto_levelling
this is a good page to read.
What current do you have the drivers set at?
What motors are you using?

[dc42]

@max22 do you have enough spare stepper motor driver outputs on the Duet+DueX to drive each of the 3 Z motors from a different driver?