Printrbot Tank is a fully 3D printable rc tank.

Maybe an S-pattern if it can stay put or a folded over U?

3D files are live.

Product is live.
http://printrbot.com/shop/printrbot-tank/

As I expected, even after we post, we find ways to improve the design! :wink: but we will post updates often.

Brook

How many sprockets, wheels, idlers required?

2 idlers, 2 sprockets.
Beware, we are redesigning the drive sprocket… Nick will post the new one Monday.

Now faster! See it at top speed

Printrbot 3D shared by A.Smith