Corona Mill for Crushing Brewing Grain

 There is another post where I tried to make a mill out of beech. It wasn't hard enough.

I got a Corona mill in the end. It takes a while to crush 7kg of grain, so the temptation is to use a drill. You need a lot of torque and slow speed. My Dewalt drill will do it, but the shaft is wonky.

I had an old break maker. Taking that apart gave some great parts to re-use. I have cheated and use a variac to slow the motor down, but it works well.