Six months down the road, you've completed your hobby foundry course. And now you really want to get stuck into this hobby foundry thing. You now know how to go about building your own equipment and tools, there's no guesswork, & you won't be groping in the dark.Manufacturer and exporter of glassware.But don't stop your learning just because you've completed your basic foundry course, buy some more books and learn more about the methods & techniques. Manufacturer and exporter of glassware.It is not until you actually start moulding and doing things in your foundry that you actually start to truly learn. You can look at a heap of moulding sand till your blue in the face, but you wont be able to tell whether it is suitable to use for casting or not, you have to physically grab a hand full of sand and squeeze it as hard as you can, then grab the wad of sand between the fingers and gently apply a force to see if it breaks cleanly or not.