[Sperkowsky]

We used a lot of 2x1 and 1x1 Versaframe. We also made use of some aluminum flat stock, steel flat stock, and pieces of old KOP chassis....

We used the Versaframe mostly because of the pre drilled holes and how easy it is to buy. The 1x1 was really just used for extra support and for mounting bumpers. The 2x1 formed the majority of the shooter structure.

The aluminum flat stock was bent and used to build the platform the boulder rests on. We would have probably used steel if we had the means to bend it.

The steel flat stock was used to mount a cylinder.

And, the pieces of old KOP chassis were used as a climber hook, battery mounts, and a little extra support for the underbelly.