So the bits arrived today. only the resistors and cable

changed the cable, seemed to be a bit better and the steppers ran for alot longer before the PSU cut out.

Both gecko's now running 2 amps to the steppers so thats fine.

but it still keeps tripping the bloody PSU.

So i thought i would do some testing.

i found this http://www.geckodrive.com/upload/returnedenergydump.pdf

just wondering if that could be the case?

Does anybody have an idea how to test the gecko's to make sure there not the problem?