I’ll jump in here with hoping to use NEMA 34 steppers with the TinyG…
And my view is to use an external driver to handle higher voltages and currents than the TinyG supports natively.
With a bit of work, a gecko clone board can handle the voltage and current requirements without causing a wiring nightmare.
I’m looking at using a PS-8N80 – 800W 80V Power Supply
http://www.antekinc.com/ps-8n80-800w-80v-power-supply/
The PS-8N80R5R12 has both +5V and +12V regulated at 1A each.
List price at Antek is $173.
The +5V will power a PI board, and the +12V will power the TinyG.
After it is all done, perhaps synthetos could make the driver board for those in need. Otherwise, I’ll just publish the board info wherever…
william…
