It performs a similar task comparable to most 3D CAD programs. For example Solid Works.
You mark edges and it puts a chamfer or fillet on it. VERY useful. That would work like a charm on your PLC controller.
Check out some of the other plugins on Sketchucation.com.
One of the most remarkable is certainly the Subdivide and Smooth at Smustard.com. Written by Whaat. It's not free software but if Skethup is your main tool and you want some more organic forms in your Sketchup scens it's hard to beat at $22.
Yeah that's what I was thinking! I wasn't sure how to make the compound curve on the ends. Now I know!
There are a bunch of plugins that seem very useful. Thanks!