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Old 03-24-2010, 01:59 AM   #1
Mose
 
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I have a motor I scavenged off an old delta scroll saw. It has 1750 RPM and 1/10hp. I have noticed other threads using 1750RPM and gearing it down, but they seemed to have more fraction of a horse.

I am planning on making a go at the concrete rollers I read about on here. Anyone else try that with any success?

Any words of wisdom on glazing or the life of these rollers? Das Wife is thinking about using it to make all grain bread as well.

Thanks

 
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Old 03-24-2010, 09:21 AM   #2
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The motor should work fine but you'll want to use a pulley to slow down your rollers. It's not the HP you are worried about but the surface feet per minute of your rollers. I use an old furnace blower motor (1/5HP) spinning at 1050RPM. It's reduced to give me 120sfm with a 3 inch roller.

 
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Old 03-25-2010, 02:39 AM   #3
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Thanks,

Any pointers where to source bushings, pulleys and a belt?

 
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Old 03-25-2010, 04:12 AM   #4
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Quote:
Originally Posted by Thirteen View Post
It's not the HP you are worried about but the surface feet per minute of your rollers.
Surface feet per minute? Why not just stay with RPM's? It would make any calculations easier when choosing pulley sizes etc.

 
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Old 03-25-2010, 04:15 AM   #5
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Quote:
Originally Posted by Mose View Post
Thanks,

Any pointers where to source bushings, pulleys and a belt?
http://www.mcmaster.com/#pulleys-for-belts/=6d5twy

Some hardware stores will have a selection and also some lawn mower repair shops.

 
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Old 03-25-2010, 05:37 AM   #6
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Quote:
Originally Posted by Catt22 View Post
Surface feet per minute? Why not just stay with RPM's? It would make any calculations easier when choosing pulley sizes etc.
With FPM you can get better needed HP numbers than just roller rpm's, heck a 10" roller mill will take 5 times more hp for the same given rpm's. The FPM would also be in crazy high FPM speeds also like into the folur speeds. Come on Catt 22 you know better than this.
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Old 03-25-2010, 03:54 PM   #7
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Beemer,

Duh, disregard my comment on this. I misunderstood the post. It was late...

 
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Old 03-25-2010, 03:57 PM   #8
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Thanks guys,

Looks like I'll be getting to know McMaster and Auberins very well over the next few months.

Anyone think the concrete rollers are a bad idea? The other threads didn't seem to report back after extended use, but nobody seemed to think it a bad idea.

 
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Old 03-25-2010, 04:59 PM   #9
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Quote:
Originally Posted by Mose View Post
Thanks guys,

Looks like I'll be getting to know McMaster and Auberins very well over the next few months.

Anyone think the concrete rollers are a bad idea? The other threads didn't seem to report back after extended use, but nobody seemed to think it a bad idea.
Not a bad idea really, but IMO it's a lot time and effort to build a mill. Mills aren't really very expensive. I would get a low end Crankenstein or something similar. Unless you just want to do a challenging build project, of course, then definitely go for it.

 
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Old 03-25-2010, 05:06 PM   #10
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The retail rollers aren't really that bad, what about $100 for a cheaper set, not the end of the world, but if I blow a little concrete on a try no real loss either. It would be a fun project, and I can toss the $100 bucks at a PID and SSR/Sink set up for the 1st stages of the ebrewery.

If I can get it to work I'll post up on the build with some pics, if not I'll fade off in shame... and buy some rollers.

Thanks again.

 
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