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Has there been an answer for this, please?
I'm making my first foray into building electronics with this and can just about follow along on the breadboard.
The things that have no label look like capacitors and are just above the Arduino stepper drivers and attached to the 12v rail are the things we need part numbers for, Yes?

Did you get this working or at least find out what they are? Any help would be gratefully welcomed!

Okay, so I got an idea and it paid off.. The capacitors for the stepper motor drivers are 100 Microfarads. The bought PCB also has capacitors for the two rails. the 5 volt has a 100 microfarad and the 12v has a 10 microfarad.

I still need inspiration for the wiring question though.
Much thanks
Amalys