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ajwillys · 07-31-2008, 08:12 PM

Quote:

Originally Posted by nathan

Be very careful of that dust. If it builds up it can be explosive. I'm eventually going to build a station like that myself, but will roll it over to the garage door opening to do the milling if I don't enclose the bottom completely with a door on the front.

I had a science teacher in high school that blew up a dust cloud of flour in the classroom. It was very cool!

Steel-Reserve · 07-31-2008, 08:57 PM

what? please explain.. sorry for the noob question, but how does grain dust become explosive? i mean, if it builds up, can u light a match and run it threw the cloud and it will catch??

Damonic · 07-31-2008, 09:12 PM

Conditions have to be right. Grain dust is flammable and when suspended in the air at the right concentrations, will go boom if ignited. Ever hear of a fuel/air bomb?

camiller · 07-31-2008, 09:51 PM

Or ever hear of a

grain elevator exploding

**John Beere** · 08-09-2008, 01:54 AM

I just found these two photos on our camera of the crush from my last brew session... The adjustable gap was set to .037".

**EDIT** - I guess these were taken right after I shot the video...

BeerCanuck · 08-09-2008, 02:13 PM

Im always impressed by your DIY projects John Beere

Cheers
BeerCanuck

Tonedef131 · 08-09-2008, 02:29 PM

Did you notice an increase in efficiency with the 3 roller mill? I have a 2 roller Monster Mill that is motorized in the same manner as yours and the gap is also set at .37. I get good efficiency but looking at your crush yours seems to be much more broken up. All pieces are cracked after running through mine, but some look whole until you pick them up and rub them in your fingers, then they fall apart.

**mmb** · 08-09-2008, 02:40 PM

Quote:

Originally Posted by brrman

Wow that is really creative. I just got my Barley Crusher this week and will be looking to make a milling station pretty soon.

My Barley Crusher docs say not to attach a belt to the drive shaft. I don't know if this includes sheaves or not, but I'm going to contact BC, Inc to see what they say.

**John Beere** · 08-09-2008, 04:15 PM

Quote:

Originally Posted by Tonedef131

Did you notice an increase in efficiency with the 3 roller mill? I have a 2 roller Monster Mill that is motorized in the same manner as yours and the gap is also set at .37. I get good efficiency but looking at your crush yours seems to be much more broken up. All pieces are cracked after running through mine, but some look whole until you pick them up and rub them in your fingers, then they fall apart.

I've also been modifying my process quite a bit, so its hard to say exactly, but I expect 80% efficiency now. Before, with my two roller JSP MaltMill and a simpler mash schedule, I was at around 66%~68%.

**bradsul** · 08-09-2008, 04:49 PM

Quote:

Originally Posted by mmb

My Barley Crusher docs say not to attach a belt to the drive shaft. I don't know if this includes sheaves or not, but I'm going to contact BC, Inc to see what they say.

I would guess that the bushings they use aren't suitable for all the lateral force that a drive belt would require. You could set it up in such a way that the drive shaft itself is direct driven and have the pulley attached to an intermediate shaft of some sort. Extra complexity for sure but better than destroying your mill.