8 May
2013
8 May
'13
12:37 p.m.
The board is silk scrrened so its not a home built
lashup, 5 wire on tyhe
motor so it could be 4 pole star, but only 2 dfrive transitors ?
I thought the TO220 packages o nthe PCB were most probably 3-terminal
regualtors (7805-things) to supply the terminators. The stepper driver is
those ICs hung off wires on the solder side. And it's quite possible
there's a driver IC amongst them.
-tony