pic: 816 as of 1/25/11

[thefro526]

Originally Posted by dodar

So to me that would mean that you guys are going to have a double-jointed arm? So that you can pick up from the front, unless you are gonna scoop from the back and score from both sides.

We're planning on using a 4-Bar arm with a wrist. I guess that's technically 2-joints, but the wrist will only pivot between 0* and 90* with the floor- which is to allow for tube pickup.

Originally Posted by ajlapp

We use a cam bolt for tensioning in our boxed frame system.....works pretty good. It is especially well suited for these applications because you have axle support on both sides.

A fixed center distance will do the trick too.

Anthony, I referenced your cam bolts during the design phase for this drive, but I didn't think they'd be necessary if we could hold a respectable center to center tolerance. If we find that tensioning the chains becomes and issue down the road, it's not hard to implement your tensioner on our drive.