[CactusChip]

I just ordered three G201s, and while I'm waiting for them to arrive, I'm building an enclosure so that everything is nicely boxed up as a unit.

I want to mount my G201s on a large aluminum heat sink from an old UPS inverter. The heat sink is 9" x 4", and I have some high volume fans to aim across the fins. If I mounted two G201s flush with the edges, and one in between, I only have 3/4" clearance between the drives. Is this sufficient clearance? I'm not sure what the minimum proximity between drives should be (probably simply missed it in the excellent info at geckodrive.com). I'll only be running 4A@48V/drive.

Also, should this heat sink be grounded to the power supply ground and the logic ground, or should it be isolated?

Thanks,

Billy Byler