Well after talking to Ryan (Thanks Ryan!) I have a better feel for what this robot is going to need. I’m using E-Maxx RC monster truck parts for the suspension. The parts (suspension, wheels, and most of the drive shafts), if purchased alone, would come to about $485. Fortunately I just won two used partial E-Maxxes on Ebay, total $312.50 delivered. That should cover everything except two tires, so that’s a pretty decent savings, and this way I can see the entire assembled thing in my hands. (Plus there’s some extra goodies I can tear off the trucks.) The timing belts and pulleys to transfer torque from the two motors to the 6 wheels will probably come from McMaster Carr, since they have bloody everything. I wish I could afford to build the whole robot using those parts. Of course it’d come out about the size of a tank.
Ordered the motors from Herbach and Rademan. Same motors I used on Johan, so I already know they’re good.
I may change my mind, but I’ve been planning on using nomex honeycomb / fiberglass sandwich for the main chassis plates. Super strong, super light, super duper.
Got some parts coming so I can make a hot wire foam cutter (also from Herbach and Rademan). I’m planning on using that to help me make a foam shell for Gunther, which can then be laid up with Kevlar, fiberglass, and epoxy. I’d also like to use it to try my hand at lost foam casting, using Chris’ foundry.
Suzannah says it’s pronounced basically “goon-tehr”. So don’t say my robot’s name wrong, it’ll make him feel bad!
I need very badly to sleep. But I’m excited about this project. Rock, rock on.