The Great Bottle Opener Giveaway

Home Brew Forums > Home Brewing Beer > DIY Projects > Building Mill! However...general Milling question...

Reply
 
LinkBack Thread Tools
Old 08-06-2010, 02:03 PM   #31
Brewmoor
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
Brewmoor's Avatar
Recipes 
 
Join Date: Aug 2009
Location: Colorado
Posts: 1,094
Liked 12 Times on 12 Posts
Likes Given: 13

Default

I think you will be fine with the 1/4hp motor. That is the size I went with and that thing is a monster. Once it is geared down it will have plenty of power. I have seen 1/8 hp capacitor start motors work well. I think the key is getting that thing started. Getting a Capacitor start motor will help get full hopper moving with that little extra umph at the start.

The 1/3 HP motor that ubermick posted would be a great motor too.

Both of those motors spin at 1725 rpm which is the same speed I have from mine. I went with 10" pully for the mill and 2 1/4" on the motor. That works out to roughly about 350 rpm about a 5 to 1 reduction. I got my sheaves from McMaster Carr. I can give you part numbers if you want.

__________________

"What the mind can conceive and believe, the mind can achieve."

My build thread. Compact Single Tier!


Last edited by Brewmoor; 08-06-2010 at 02:07 PM.
Brewmoor is offline
 
Reply With Quote Quick reply to this message
Old 08-06-2010, 03:16 PM   #32
ubermick
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jul 2009
Location: San Rafael, California
Posts: 989
Liked 21 Times on 20 Posts
Likes Given: 8

Default

Quote:
Originally Posted by SeanGC View Post
But by slowing down the RPMs (pulleys, wheels, etc), doesn't this increase your torque?
As Cat mentioned, it would give you an increase in torque, but the original motor in question (the 177RPM gearmotor from Surplus Direct) wouldn't be using pulleys, since it's right at the RPMs you want already. Gearing it down would increase the torque, but make it run ooooooh sooooo slooooooowlyyyy....

Brewmoor's probably right, the 1/4hp would be enough. Everyone and their uncle told me I needed a 1/2hp, but I went 1/3, and it runs my Monster Mill MM3 without a problem. The only issue you'd have is starting a lower power motor with the hopper full. (Which is why you'd want capacitor start in the first place, I'm thinking) I'm running a 12" sheave on my mill and a 1.5" one on my motor, giving me somewhere around the 200 RPM that I wanted, I got mine from Drillspot (the retail version of Grainger) mainly because I couldn't seem to find the 12" one with a 1/2" bore on McMaster's site. (I could only find a 10", and I had a bug up my arse about getting the speed under 200)
ubermick is offline
 
Reply With Quote Quick reply to this message
Old 08-06-2010, 10:20 PM   #33
SeanGC
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2009
Location: Staten Island, NEW YORK
Posts: 243
Liked 2 Times on 2 Posts

Default

I won the 1/4, and I plan on getting the rpms to at most 300. I'm also going to grab the barebones malt mill.

You guys have helped me so much. and I appreciate all the help I've received from all of you.

If you wouldn't mind showing me the part numbers, that'd be great. I have a few hardware stores around me that sell electric motor accessories (belts, pullys, etc) but everyone speaks very highly of McMaster's.

__________________

Last edited by SeanGC; 08-06-2010 at 11:02 PM.
SeanGC is offline
 
Reply With Quote Quick reply to this message
Old 08-07-2010, 06:54 AM   #34
ubermick
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jul 2009
Location: San Rafael, California
Posts: 989
Liked 21 Times on 20 Posts
Likes Given: 8

Default

If you want to keep the RPMs under 300, I'd suggest a 2" sheave for the motor, and a 12" one for the mill. (Both of which will actually be more like 1.55 and 11.55 when you take into account the pitch)

From Drillspot (since like I said, I couldn't find the 12" sheave on MMC) the parts you'd need are...

2" OD with a 1/2" bore: 3X895
12" OD with a 1/2" bore: 3X938 (verify that the maltmill has a 1/2" shaft - I couldn't see that on their site, but I did find a maltmill build here where the guy does use that exact shaft.)

FWIW, those are the same sheaves I have on my setup, and it chewed through 22lbs of grain today in about 3 minutes!

ubermick is offline
 
Reply With Quote Quick reply to this message
Old 08-07-2010, 01:17 PM   #35
Brewmoor
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
Brewmoor's Avatar
Recipes 
 
Join Date: Aug 2009
Location: Colorado
Posts: 1,094
Liked 12 Times on 12 Posts
Likes Given: 13

Default

The Malt Mill does not come with a 1/2" shaft. It is smaller. When you order, tell them you are motorizing the mill and you would like bushings for a 1/2"sheave. They will send you brass bushing that will slide into the sheave. It took a bit of modification to get mine fit correctly but it works great. I had to cut one of the bushing down a bit with a dremel so the set screw would touch the flat spot on the shaft. I just got mine yesterday in the mail and put it all together.

__________________

"What the mind can conceive and believe, the mind can achieve."

My build thread. Compact Single Tier!

Brewmoor is offline
 
Reply With Quote Quick reply to this message
Old 08-25-2010, 08:34 PM   #36
SeanGC
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2009
Location: Staten Island, NEW YORK
Posts: 243
Liked 2 Times on 2 Posts

Default

Sorry for reviving an old thread lol.

Alright so, I purchased a http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=270615440544&ssPageNam e=STRK:MEWAX:IT#ht_3075wt_1139 from ebay in great condition. Now, my father has experience with electrical work, so I relied on his contributions to help me get the motor running.

However, he's been pretty held up with other projects so I figured i'd try to atleast prepare some of the hardware for him on the backend when he becomes more available.

The wiring diagram provided by Dayton seems pretty simple enough. Red, Black, Ground. CW and CCW rotation when switching black and red (to my understanding)

With that said, what do I need to get this thing running besides the wires?

__________________
SeanGC is offline
 
Reply With Quote Quick reply to this message
Reply


Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Building Monster Mill base TheMan DIY Projects 18 07-20-2012 03:10 PM
Question about building a Propane Manifold harten74 DIY Projects 4 11-20-2009 02:37 AM
Building Stand - Banjo question inspector13 DIY Projects 2 11-08-2009 02:23 AM
Building a dummy-proof grain mill (pictures) ajfabb DIY Projects 19 09-15-2009 10:15 AM
I'm building two jockey boxes - co2 distribution question carnevoodoo DIY Projects 1 05-20-2009 03:47 PM