2x72 belt grinder info

[Twisted Sid]

So after modifying a 4x36 delta belt/disk sander into a frankengrinder to use a bigger motor that I had laying around, I have decided to try and build a 2x72 using a treadmill motor for power and speed control. While my delta still works and does what I want it to do, its loud, doesn't track very steady, and the belts just don't last like they should. I have searched on here for other threads and found a few with good information in them but most are a few years old and I'm hoping to get some new info.
If you have made one, did you design it yourself or buy plans? If bought plans, who's did you go with?

I know about beaumont metal works and usaknifemaker but has anyone else found other good suppliers for wheels, parts, and plans?

Lastly, if you have built or bought one, post up some pics. I'd love to see what other people have come up with.

 

[Hawk]

http://www.garagejournal.com/forum/showthread.php?t=259547

 

[zkling]

I built one, based on plans I downloaded. It is essentially a KMG style (copy). If you have basic metal working skills and equipment it is not hard to do. I'm not sure if a tread mill motor would have enough power. I'm running IIRC a 5hp motor on mine. No pics atm, it's under a sheet in the corner. You can use casters for the contact and idler wheels. Just have to check and balance them a bit.

 

[Fretters]

If you're after ideas, there'll likely be something linked to on this site:

http://www.homemadetools.net/

 

[Twisted Sid]

thanks for the links, ill check them out.
The treadmill motor I have is rated at 2.5hp and can go up to 6000rpms. Lots of people have used them for other tool builds with little to no issues.

 

[organ]

Sign up at bladeforums and search there.

 

[gtermini]

I built a 2x48 and am currelty in the process of a 3x79. It is an older true 1-1/2 hp induction motor and that is a bare minimum. I think your treadmill motor is greatly overrated on true power The motor is a 3450 rpm and the 6" contact wheel is overdriven at about 4k for just under 6000 sfpm. The next machine will be faster. The top wheel is crowned 2 deg each side with a 1/4" flat in the center for better tracking. Don't cut corners on the bearings or abrasives.

Greyson