Crowd Engineering

LifeTrac Quick Connect Wheel Challenge Results

We put up a crowd design challenge at GrabCAD a few weeks ago – for LifeTrac IV – Quick Connect Wheels. The basic problem was: how do you design wheel assemblies for a tractor that can be taken on and off in under 5 minutes – for interchangeability...

Ironworker Blade Design Help

For those of you who do not know, I’ve been hard at work on the design of the open source Ironworker Prototype II and plan on building it this winter at my grandfather’s fabrication shop, Enniss Inc. I’m calling out to fellow fabricators and engineers...