errrrCLICK....CLICKerrrrrrCLICK!!!

[FotoPlasma]

Actually, what I posted is probably irrelevant given what's actually going on.

I'd think that the problem is mechanical.

I'm reminded of what our prototype (Snowbot, the drill, helical gears, and gearbox) did while in high gear.

Apparently, and this goes along with John's recent post, under not-so-great conditions, it's very easy to pop breakers in high gear.

I'd recheck that the drills were in low gear, and then, as John said, try to reduce any ineffiencies in the system. We slopped a good amount of white grease into the helical gears, covered the openings of the gearboxes with a couple shoptowels, and ran them for a minute or so, to get any excess grease out of the system. It worked very well.