poisonbladed wrote:
To tell you the truth J Mans thing kind of scares me. As often as I have drilled, cut, and or glued myself burning would be a new sensation while playing with toys.
You can always just buy some resin. If you're decent at carving, just build a simple square about the size you want out of silly putty or latex. Pour the resin in and it'll harden into whatever size you made the "mold". Don't even worry if any of the stuff you made the "mold" from sticks. You won't reuse it, so you can even use clay. Sand and sculpt that block of resin into what you want.
But of course it's even better to cast a mold then make the resin copy if you have that option. But assuming you don't, this will work.
For large areas, say a huge gap on a vehicle custom, just just sheets of styrene or another type of plastic. You don't have to melt it. Just cut pieces the size you need and stack them if you need it thicker. You can sand it down after it's glued in place to match the flow of the surface you were rebuilding. Using super glue will keep the bond between the layers.
There's tons of ways of doing it without having to rely on having a chunk of clay that might crumble. The epoxy is fine, but you gotta work fairly quick.