Each team has taken a different approach to how to get their machine to walk. The Megalomaniacs are going to adapt a Jeep to walk by welding a cam onto the wheel hubs. A cam is something that turns but isn't necessarily circular. The Megs cam will be teardrop shaped so the car will rise on the tip of the teardrop and roll over on the bottom. They'll need some strong feet for the cams though.

The Bodgers will be going for the much more difficult approach of hydraulics. A hydraulic is a piston inside a sealed tube. The pressure of a fluid (or air) being pumped into one end will force the piston forward. The piston moves back into position and the cycle repeats. Their machine will shuffle along having one set of hydraulics raise one platform, slide another along and repeat towards the finish line. Tricky business indeed.
 
 

The Megalomaniacs have the services of Jerry King	The Bodgers have Dr James Brighton Babs is ill, so stepping in is Anne Saunders
This walking machine is Dante. He explores volcanoes	OK. This is the Bodgers machine. One set of rams raises it and another slides it forward and back on rollers.
The judge/expert this week is Neal Davis, builder of wacky things	Seems as though Lurch has found a chunky bit of rams
The Megs jeep. Actually, it's a Suzuki	They need to strip the jeep down so off goes the roof
The Bodgers work area. Those ladder-looking bits are actually rollers	From rams to cams. A cam transfers circular motion to vertical motion.  Or "round-n-round" to "up & down"
Cut Those Cams!	Those strong Bodgers lift that car
Seems as though Bowser welded too well. Those rollers are stuck.	Bowser's sexy welding goggles
The Megs walking jeep	The Bodgers shuffling scrap