Re: [CAD_CAM_EDM_DRO] Digest Number 1033

For anyone interested in 10 amp step and direction stepper motor drivers.
I have scanned and uploaded the data for the 3776 stepper driver chip to

http://www.odyssey.on.ca/~wmccarthy/eric3776.htm

This chip can drive 10 amps to 45 volts with half step or microstep drive through outboard FETs
It has on board current chopping.

I have posted my version of a roll your own pcboard for your interest.
I built several of the boards successfully several years ago.
I also posted a hi-voltage pcboard for higher voltage drives but it is
experimental as I was sidetracked before I completed testing the board.

New Japan Radio is now sourcing the chip.
Their link is on the website. I do not know how available the chip is at
the present time.