Originally Posted by
ger21
You MUST use stranded wire, or it'll break. The HD wire in the links above is solid, which won't tolerate the back and forth bending.
You don't need shielded wire for your steppers.
I'm using unshielded 4 conductor 22gauge stranded on my machine, and it's been running for over 5 years now with no issues.
If you pay the $6 shipping, I'll send you 20-30ft. I have a few hundred feet that I'll never use. PM me if you want it.
Your best bet for adding to the original wires would be to mount terminal strips near the motors, and make the connections there.