| QUESTION: I JUST BOUGHT A GRS MAGNA BLOCK. I FIND IT VERY STIFF AND DOES NOT ROTATE EASILY ON THE TIRE NYLON INSERTS. IS THERE SOMETHING I CAN PUT ON THE NYLON INSERTS TO MAKE IT ROTATE EASILY? FOR YEARS I HAVE USED A VIGOR'S BALL VISE WITCH IS MUCH LIGHTER AND SMOOTH AS GLASS. ANY IDEAS? ED DELORGE |
Posted by Edward DeLorge at 1/18/2007 10:27:13 AM.
| hi ed .. i have my vise for about 10 years now and i had the same problem that you have so the first thing i did was throw that tire away and i went to a machine shop and had them make me a steel ring to fit my vise then i drilled 1/4 inch holes about 8 of then on the bottom of the ring and also where the vise sits in the ring and i then inserted Teflon pins in those holes my vise now works like a charm .. i hope this helps .. ron p. |
Posted by Ron Nott at 1/18/2007 12:52:07 PM.
| Ed, I've never had a real problem but I would think you need to have the ball clean and free of any oxidation. I think a coat of wax would help too. Since going to a microscope, I rarely tilt the vise that much and when I'm doing large items,I find that I need to flip the tire over to keep the vise from tilting. Now... I do assume you have adjusted the drag for rotation??? |
Posted by Rex Pedersen at 1/18/2007 1:54:49 PM.
| Hi Ed. My Magna Block is an old one and the rubber tire does not have the nylon inserts. I place a shop rag between the block and ring for smooth and easy movement of the block. I remove the rag when I work on a barrel or any time I don't want the block to move so easily. Works great for me. S |
Posted by Sam Welch at 1/18/2007 6:57:32 PM.
| HELLO RON, WHERE CAN I BUY SOME TEFLON MATERIAL TO MAKE SOME NEW PINS. I GUESS I WOULD NEED SOME 3/8 THS OR 1/2 IN ROUND STOCK TO TURN ON MY LATHE ? ED DELORGE |
Posted by Edward DeLorge at 1/18/2007 11:31:16 PM.
| Ed To save a lot of work the furniture sliders that you can get at the hardware store should solve the problem you can screw them into the rubber ring |
Posted by Dave London at 1/19/2007 6:59:04 PM.
| hi ed .. i really don't know i made this suggestion to one of my students and he also had a hard time finding some , may be if you go to eBay or Google the question like teflon stock .. but it works like a charm ..another suggestion is go to a tile supply store and get or buy 1 piece of 2ft x 2 ft square tile i use a glass one and place your vise on that it also works great .. ask lee Griffith i gave him a piece of it .. ron p. see you all in reno .. |
Posted by Ron Nott at 1/21/2007 9:27:33 PM.
| hi ed .. here is a web site where you can order teflon in any size and shape .. www.professionalplastics.com ... ron p. |
Posted by Ron Nott at 1/21/2007 9:42:07 PM.
| paper, cardboard, nylon stocking, naugahyde, plastic shopping bags, etc, and etc all give different amounts of drag to the ball. experiment till you find a couple that you like ! whatever you do, you don't need to throw $$ at this problem ! |
Posted by j.d. swartzfeger at 2/12/2007 5:06:30 PM.
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