Can ball mills be made out of pvc?

[Recruit]

The ball mill produce BP by crushing and mixing sulfur, charcoal, and saltpeter (aka oxidiecer). Yes you can make BP without a ball mill but it won't be as good as ball milled BP

[MisterSteve124]

A ball mill just spins a little tub with all the chemicals and lead balls inside. The balls crush and mix all the chemicals together and make the bp finer and mixed better.

[Infernal2]

A ball mill is also great for milling cat liter down to moldable green sand for metalcasting. I've made a copy of this Ball Mill. I'll post my own when I get a better digital camera....