1/14 CAT 390D LME

[grumpygrady]

i have a few links about making sand molds to do what you need ,let me know if you want them ,
but the best way is doing lost wax and using a wax tree and casting thirty or more at one time in a investment mold ,
and by the way plaster of paris will cause a exploration of hot metal because you can't bake all of the water out of it .