electricmonk
spending too much on rocks
Member since August 2011
Posts: 281
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Post by electricmonk on Oct 1, 2011 18:51:04 GMT -5
I wonder if you could set groove depth the same way they do with wood router bits. Typically a ball bearing is placed inline with the bit, the bearing surface prevents the work from going deeper than the bearing diameter which acts as a positive stop. I wonder if some sort of sleeve could be placed around the shaft which would do the same?
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borock
starting to spend too much on rocks
Member since April 2011
Posts: 225
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Post by borock on Jul 20, 2012 20:51:06 GMT -5
I have got to own one.
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hand2mouthmining
spending too much on rocks
Purveyors of California Gem Rock
Member since September 2011
Posts: 495
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Post by hand2mouthmining on Aug 14, 2012 15:33:07 GMT -5
Great project diary! Several folks mentioned problems with depth control, here's an idea.
Why not build a "fence?" That is, a flat, movable surface like we use to controls slab thickness on our wet tile saw.
It should be do-able, just get some plastic sign stock (like "for sale" signs, y'know?) and cut a rectangular piece that is as long as your splash shield is wide. Then, install your jewelry (groove) bit and grind a slot through the face of the sign stock.
That done, cut vertical slots in the fence that will slip over your splash guard, allowing the desired grinding depth to be maintained. If the slots slip, use cloths pins to hold it in place.
I don't have a glass grinder, so if one of y'all can visualize this, give it a try, ok? If it works, post a photo so others can use it.
Thanks for listening!
Kris
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Deleted
Deleted Member
Member since January 1970
Posts: 0
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Post by Deleted on Aug 14, 2012 16:15:38 GMT -5
I use a drill press for all my grooves. Same principle, different cutter. All I do is use a permanent marker (fine tip) and put a bunch of dots around the top side of the cutter at the distance from the edge that I want the groove. When spinning the spots turn into a line and I groove to the line. I plan to make a plastic washer to fit over the shaft then cut or grind the outside edge so it sticks out near the edge and stops the stone from going to deep but I have not gotten around to it.
Jim
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Post by pauls on May 25, 2013 3:45:19 GMT -5
I've been thinking about how to get an accurate repeatable depth of cut and after all sorts of complicated setups were mulled over, the answer is easy. I think. I am in Australia and haven't seen the actual machine or grinding wheel discussed here but it should work anyway.
All thats required is a sleeve over the body of the wheel,( thats the drum looking part without the grit, ) that the stone hits when the required depth is reached, get a short length of suitable sized plastic hose and slip it down over it, or if you cant get a bit of hose accurate enough you may need to get a sleeve turned out of a piece of bronze or brass on a lathe.
Its hard to describe something so simple without pictures. If that doesn't make sense let me know and I will try to make it clearer.
Paul
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Post by Psycho on Aug 1, 2016 23:06:54 GMT -5
Great tutorial ! Thanks!
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Post by manofglass on Aug 9, 2017 13:35:48 GMT -5
Tommy your slow get the photos up please
Walt
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Tommy
Administrator 
Member since January 2013
Posts: 12,981
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Post by Tommy on Aug 10, 2017 11:48:33 GMT -5
Tommy your slow get the photos up please Walt Hahaha I may be slow but DAMN I'm good  OK, yet another thread has been snatched from the jaws of defeat by the immortal manofglass |
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Post by manofglass on Aug 10, 2017 13:00:46 GMT -5
About time you got that fixed good job Tommy
walt
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