About this 3D model

A heatbed is a great addition to any 3dprinter. And so is Auto-levelling. With Autolevelling, I needed to use a metal, currently, aluminium, print bed. I was fearful of the electrical contacts on the heatbed being shorted by this metal printbed. Previously I had them taped over, but here is a more solid protection. I feel much safer with these on. Isn't it a pity we can not label our pictures on Thingiverse? There is probably scope for improvement. Let me know if you think of anything.