The 10 lb hammer heads were connected to the body with 1 inch diameter hardenned drill rod welded through and secured to the body with a CR steel sleeve welded into a 1/2 inch CR steel mounting plate.  The plate is bolted to the body (Another 1/2 inch CR steel plate) with 8 3/8-16 stainless bolts.  The purpose of this construction was to put the entire weight of the body of the robot (277 lbs) behind the hammers to deliver the maximum force possible. As can be seen from the photos below, this was accomplished a fraction of a second after the first contact with Phere.

 I drove accross the arena at full speed and spun GoPostal up to it's 1000rpm (140mph at the hammer faces) within 3-4 seconds after positioning myself in the opponents blue square.  Phere and GoPostal contacted and the impact snapped both hammers off, throwing them across the battle box floor.  Amazingly, I still had full drivability of the now hammerless robot (Much less dangerous) and proceeded to drive around and spin for the remainder of the match.  Phere seemed to be avoiding me but afterward, in the parking lot, we met the phere team who were trying to figure out what was broken because they had actually become immobile from the massive hit on their machine.

The main body and electrical system are still functioning at 100% and the robot is fully drivable.  We will be adding a new weapon set to the machine for the next competition that will solve the strength problem and software to the drive system to improve spin-drivability.  I just can't wait for season 4.0!!!