09-26-2013, 07:43 AM
make your bench the minimum of 24 wide X 48 long, and whatever is comfortable for you to stand at not all people are the same height. and make it strong as and ox, remember that your going to be pounding sand on it, fix it so the molding board can slide from side to side and that the tub or tubs can be tilted out to either shovel the sand into or back out of the tub's.
the top should be so that you can use a scoop to reach into the tubs to get sand for the mold which will stop sand spillage, you also need a back splash with places for tools and such.
remember 2X4 construction is probably the cheapest and strongest way to go.
Your sand will last a looooong time with additions of bentonite to it every now and then so that it will stick together. some places you can find good casting sand in your yard that doesn't need anything added to it.
your 12 X 12 flask if its like 3.5 inches deep is going to take about forty pounds of sand to fill each half depending on the pattern in it.
the top should be so that you can use a scoop to reach into the tubs to get sand for the mold which will stop sand spillage, you also need a back splash with places for tools and such.
remember 2X4 construction is probably the cheapest and strongest way to go.
Your sand will last a looooong time with additions of bentonite to it every now and then so that it will stick together. some places you can find good casting sand in your yard that doesn't need anything added to it.
your 12 X 12 flask if its like 3.5 inches deep is going to take about forty pounds of sand to fill each half depending on the pattern in it.
dallen, proud to be a member of MetalworkingFun Forum since Apr 2012.
If life seems normal, your not going fast enough!
If life seems normal, your not going fast enough!