Hi all

Anyone used CNC routers to make molds for composite parts before?

I am thinking of using CNC routers to machine down PU foam, lay down glass fabric on the machined foam to have an impermeable surface.

Then apply mold release on the impermeable surface, gel coat and lay up to build the mold.

Is this wise? Any advice?

Thanks all for sharing!

I have little experience with CNC routers. Any advice on the model of CNC router and CAM programmes to be used would be greatly appreciated!

I am looking at a part size of around 20cm by 40cm by 40cm.