stephent
starting to spend too much on rocks
Member since March 2014
Posts: 213
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Post by stephent on May 22, 2014 21:00:25 GMT -5
Got any Pics? Sounds like a good project...editing this I see there's some pic links that aren't working..
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quartz
Cave Dweller
breakin' rocks in the hot sun
Member since February 2010
Posts: 3,341
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Post by quartz on May 22, 2014 21:07:19 GMT -5
You beat me to deleting it, I can't get pics. to work anymore. They changed it and now I can't get it to work . Using flickr, any help appreciated. Used to be able to do it.
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stephent
starting to spend too much on rocks
Member since March 2014
Posts: 213
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Post by stephent on May 22, 2014 21:10:03 GMT -5
What kind of picture hosting site do you have? Pics won't directly post to the forum... you will have to use PhotoBucket or similar.
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quartz
Cave Dweller
breakin' rocks in the hot sun
Member since February 2010
Posts: 3,341
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Post by quartz on May 22, 2014 21:31:39 GMT -5
I got them on flickr but they changed it and now I can't get them to move here, used to not have a problem. Tried 3 different ways, none worked. Last time I put pics. on here was March, works differently now. Aha, I found it; what I have to do now to get pics. up. Anyhow, I took interest in the little grinder lennybOb built a while ago, decided to have a go at it with stuff mostly on hand, and some of it slated to "go away" soon. The 3400 R.P.M. motor was free, gave a buck for the loaf pan, and $1.99 for the tea jug at Goodwill. When I sawed the valve off the tea jug, I found the hole to be just the right size for a 1/8NPT [pipe] tap. The tea jug fit perfectly into the 6" thinwall [sewer spec.] pvc pipe. I glued in a thin ring of the pvc for the jug to set on so it couldn't settle unevenly. The drain from the pan is a valve stem from a truck innertube. Splash guard is a trimmed-up 15lb. drywall mud bucket. The motor has a 3/8-24 thread on it, making it easy to screw on a keyless drill chuck. The motor turns clockwise, meaning no inherent tightening of the chuck, so I drilled and tapped the chuck for a setscrew to seat on the flat on the motor shaft. Since it is open frame,I built a screen house around the motor to keep fingers away from the exposed electrics. Made an acrylic splash plate to keep water away from the motor. With HF wheels of about 100 grit, it works very well on small stuff, now I have to come up w/some finer grits. Overall a fun project, just to see how it would go, and I do have some practical use for it. It easily breaks down into three pieces, making for handy storage.
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stephent
starting to spend too much on rocks
Member since March 2014
Posts: 213
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Post by stephent on May 22, 2014 22:43:00 GMT -5
Looks good...they make 4"-4 1/2" different grit granite polishing wheels that would probably work on that setup with a shaft adapter.. Looks good...except for using that towel to catch drips.... fine stone dust and grit will take the bearings and seals out of a washing machine in half a heartbeat.
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quartz
Cave Dweller
breakin' rocks in the hot sun
Member since February 2010
Posts: 3,341
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Post by quartz on May 23, 2014 0:04:29 GMT -5
I moved the machine out in the yard so as not to have anything else in the way of the pic. The towel is to provide a better appearing and uniform surface on a pretty well-used table, wouldn't think of using that as a drip catcher, then throwing it in a washer. Going to be looking at all sorts of wheels, I have a lathe, really helps with the making of shaft mandrels and such. Thanks for the look. Larry
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Post by Rockoonz on May 24, 2014 21:11:24 GMT -5
Does the motor have any internal fan blades to cool it? It looks like the type of fan motor that depends on the fan to cool it, you should check to be safe. If it is not internally cooled you may be able to point a small fan at it to cool it.
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quartz
Cave Dweller
breakin' rocks in the hot sun
Member since February 2010
Posts: 3,341
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Post by quartz on May 24, 2014 23:54:34 GMT -5
Yep, it's self cooling. I've set up a few air over motors, and found a fan off a car alternator screwed to the pulley works quite well.
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Deleted
Deleted Member
Member since January 1970
Posts: 0
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Post by Deleted on May 26, 2014 22:07:06 GMT -5
If the chuck is 5/8" then you can cut the head off a 5/8-11 bolt and chuck it up, then put the granite pad holder right on it.
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quartz
Cave Dweller
breakin' rocks in the hot sun
Member since February 2010
Posts: 3,341
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Post by quartz on May 26, 2014 23:50:17 GMT -5
Chuck will go a little over 3/8, so I'll make an arbor with 5/8 R.H. thds. on it, and tap it for a left hand bolt so is won't tend to come off by itself. I've got a couple roughing wheels and done some looking, suggestions of places as options to look at would be appreciated. Not my field of expertise, maybe I can tap yours a little.
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