pic: Prototype Drivetrain

[M.Wong]

Instead of welding the pieces together, I would recommend using these Brunner Connectors. We've been using these for quite a while. Just make some 1/8" thickness aluminum gussets and some self-tapers in order to secure the pieces together.

[JamesCH95]

Self tapping screws?

[camtunkpa]

Originally Posted by M.Wong

Instead of welding the pieces together, I would recommend using these Brunner Connectors. We've been using these for quite a while. Just make some 1/8" thickness aluminum gussets and some self-tapers in order to secure the pieces together.

Along the same lines, we've used 80/20 quickframe which is nearly identical to the Brunner stuff but the pricing is lower. We normally rivet 1/16" lexan to tie the frame together. We've had good luck with this method the last couple years.