cheapest sheet materials for 3d milling

[EddyCurrent]

Whatever it takes to keep friction down and without deformation of the wax, a relatively slow spindle speed but a relatively high feed rate. ("relatively" meaning, I don't know an exact number for certain )

[Chaz]

Whatever it takes to keep friction down, a relatively slow spindle speed but a relatively high feed rate. ("relatively" meaning, I don't know an exact number for certain )

Thing is, the wax talks about being self lubricating. Probably the paraffin component of it. In which case it probably allows to cut at high rpm and fairly high feed rates. I looked at some vids last night, 'feels like' what Id do for Alu, easily.