What caused this disaster?

[garciaBernal]

Can you make a video of whats going on? I got the same mill recently and have had no issues with it. Calibrated to credit(debit!) card size and it cracks them perfectly.

[Damien M]

Like all rotating/moving equipment!!! DO NOT RUN it again until you understand why it bound up you will only make it worse.   

If the Rollers do not roll free I would suggest a complete strip and clean down to understand why! Take every thing apart that can come apart  and see where the binding is. We all put drills on them but they are not designed for it . I had a problem with mine not a Bulldog type mine was an M3. Basically when running in the correct direction to mill grain, the threaded shaft from drill to drive roller would start to unscrew itself from the Knurled roller and bind on the Mill housing jamming the mill. Your symptoms sound very familiar to mine and I note rotational  score marks on the Mill drive shaft in one of your pictures Mine ate a bearing in the process..... skate board bearings are the correct size to replace!!

My fix was rebuild and to flip to whole Mill so that the drill and mill rotation tightened the drive shaft to Knurled roller when load came on and did require re-drilling some holes to mount the mill and Hopper....  Hope this helps. 

[TheSumOfAllBeers]

Expose the gear housing, and check if your gears are intact.

[armedcor]

Like all rotating/moving equipment!!! DO NOT RUN it again until you understand why it bound up you will only make it worse.   

If the Rollers do not roll free I would suggest a complete strip and clean down to understand why! Take every thing apart that can come apart  and see where the binding is. We all put drills on them but they are not designed for it . I had a problem with mine not a Bulldog type mine was an M3. Basically when running in the correct direction to mill grain, the threaded shaft from drill to drive roller would start to unscrew itself from the Knurled roller and bind on the Mill housing jamming the mill. Your symptoms sound very familiar to mine and I note rotational  score marks on the Mill drive shaft in one of your pictures Mine ate a bearing in the process..... skate board bearings are the correct size to replace!!

My fix was rebuild and to flip to whole Mill so that the drill and mill rotation tightened the drive shaft to Knurled roller when load came on and did require re-drilling some holes to mount the mill and Hopper....  Hope this helps.

The bulldog comes with a special attachment for drills so that would be a big problem if it really wasn't designed to be used by a drill.

[BigDanny84]

So I did what Damian suggested at the weekend and I took everything apart, cleaned the rollers with a brush, put it all back together and reset the gap and it worked.

Initially it only worked manually (took a bit of effort) but it would not turn with the drill. I presume this is what was happening the first time around and when it wouldn't turn clockwise I presumed it had to go the other way. So well diagnosed Molc. After fiddling with the drill settings it worked fine.

So I rebrewed my NEIPA on Saturday and hit my numbers. Thanks to everyone for the friendly advice. It was a good lesson for me and I'll never again be as naive to think once grain comes out of a mill at the correct gap that it is actually crushed.

Thanks guys!

[auralabuse]

This is what I love about the NHC, a problem shared and solved.

http://www.soundcloud.com/aural-abuse

[Leann ull]