I was hoping to start the new blog off with our NEIPA Hefeweizen experiment but it’s still bottle conditioning. I’m a little too anxious to get something out already so here it is: the first post.
Something we’ve wanted to do for a while was a mobile motorized grain mill. We got sick and tired of balancing the mill over a bucket while holding down the drill and simultaneously pouring in the grains. After several spills and cleanups, we realized this was a task for 2 people. Since building our HERMS, milling the grain has become one of the most time consuming and tedious jobs left to make more ergonomic. We already had the Cereal killer grain mill. All that we needed was some wood, a drill, casters, and a way to control it all.
- 4 sets of 2x4s cut to 13″
- 8 sets of 2x4s cut to 24″
- 2 sets of 3/8″ plywood (thicker might be better) cut to 16″x24″
- Optional extra 2×4 cut to 13″ for rigidity under the top surface
- 1 cereal killer grain mill
- 1 set of 4 casters
- 1 corded drill
After building the mill came the challenge to control the speed. We do not have a tachometer to measure RPM nor can we gauge how much resistance the grain will impart on the drill so we chose to go with a pulse width modulator to manually control the drill speed. Disclaimer: I am not an electrician. Working with electricity is very dangerous. Consult a licensed electrician before proceeding.
- 1x Project box (7.5″x4.3″x2.2″)
- 14 AWG stranded wire. I went with THHN since that is what I had laying around from the HERMS build. There are much much cheaper options.
- PWM rated to 50-200V @ 2000W. Anything less seems unreliable.
- 1x Male panel plug
- 1x Female panel plug
- 1x NO switch
- Female wire terminals
- #6 Spade wire terminals
- Universal power cord (we used 10ft)