About this 3D model

This is a prototype of a non contact, low temp, heating coil that's embedded in a cylinder. I made this by subtracting a "spring" helical shape from a cylinder and then subtracting a center rod from the cylinder. It was possbile to push a thin wire into the channel without any effort although I could have used oil to lubricate the wire. - Created on a Form1 Clear 0.1mm resolution. - Object designed in truSpace CAD program. - Build time 30 minutes.