Clamp for heated soapstone bed

This is a clamp for mounting a 10mm thick soapstone plate to a delta printer. At minimum three pieces needed, preferably six.

Why soapstone? The thermal properties of soapstone are quite ideal for this application, it stores heat and evens it out, so the build surface temperature stays stable and even across the surface. Also the surface of the stone is flat, deviations are negligible.

This was originally designed for a 10mm thick 285mm diameter pizza stone: http://www.hukka.fi/old/eng/?ID