I have the board design in easy eda on my laptop at home. Ill send it along later today.
No rush, thanks!
no rush… sorry about that. Here is the svg file of the board. It is displayed below (rt click save as), but internally should have the dimensions. A dxf is also attached below.
PCB_z-brakes-v1_2025-10-28.dxf (503.2 KB)
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No worries, I was able to get some measurements off of it when it came in.
Thanks for sending this over though!
Any guidance on setting up the Z Brakes as far as wiring and Klipper config goes? Is there another forum thread I should reference?
You need a 5v high signal from your board to flip the relay that isnt pulled up on boot or it will always keep the brakes off when the board powers up. You may need to test. Red led is brake applied. Green led is good to operate. You will hear it flip. I believe the snippet shared above has the multipin use example. The z brake must be off before enabling the z motors. Since homing is typically x first, i multipin the z brake with x enable so when x is powered the brakes turn off and then when z homes the 2209 doesn’t get confused. If you do it wrong klipper will fault and say z motor short detected, but it wont cook anything… At least in all my z brake testing i never fried one.