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Started by cbwx34, November 05, 2018, 06:25:23 PM
Quote from: RickKrung on November 17, 2018, 05:39:01 PMCB,How is the Lansky for pivoting? This thread has re-invigorated my interest in working on a self-centering jig for the Tormek. The Lansky is right down the line I was thinking of for the jaw portion. It is just how to combine that with the round shaft of the Tormek jigs. I have a couple ideas that need to be tried. I've ordered two of the Lansky jigs as a leg-up on the jaws. I envision making jaws that are wider once the adaptation to the round shaft is worked out. (please contain yourself, CB )Rick
Quote from: cbwx34 on November 23, 2018, 06:13:06 PMActually worked better than I thought... might make a good platform for you to experiment with. (And yes, I'm containing myself)...
Quote from: RickKrung on November 23, 2018, 06:22:41 PMQuote from: cbwx34 on November 23, 2018, 06:13:06 PMActually worked better than I thought... might make a good platform for you to experiment with. (And yes, I'm containing myself)... I am still waiting for them to be delivered. One with the rubber inserts at the jaw and one regular one. Former is due for delivery today. I figure to lop off the wings and shorten the jaws so there is room to join them on a shaft. We'll see. Rick
Quote from: RickKrung on November 24, 2018, 12:10:33 AMThey both arrived today. But I am grossly disappointed. First off, I'm not at all impressed with the finish. These appear to be cutoff from extrusions that have been sand blasted to hide machining marks and create a uniform surface appearance. My view of them is that they have been over-blasted, creating an overly rough surface. The rubber jawed one doesn't hold a blade firmly. The blade wiggles even with the knobs tightened as much as I can with my fingers. I didn't want to use pliers as I think that shouldn't be necessary and I think I'll be returning these, so didn't want to damage them. I realize these jigs are designed to hold a blade stationary while an abrasive is gently slid over the bevels, so perhaps these jaws hold fine for that, but I find them unsuitable for use with the Tormek.The notched jaw (standard?) one also doesn't hold a blade firmly either. One jaw is flat, but the other jaw is crowned (higher in the middle) and the blade wiggles even worse than the rubber jawed one. I think the notch is useless and only compromises the rest of the jig. This one uses a phillips/flat screw head requiring a screwdriver to tighten for adjusting the jaw opening width, which I find annoying. The rubber jawed one uses a red topped knob, but the jig surface is recessed to compensate for the knob's height. On both, there is a very slight recess where the locking screw presses to tighten the blade, but it is too shallow and the jaws "walk" apart when the knob is tightened on the notched jaw jig. The other one doesn't, but I think that is solely due to the rubber inserts as opposed to the screw tip staying in the recess on its own. My assessment is that these jigs do not provide a suitable platform for experimenting with developing a self-centering jig. I'll either fabricate something from aluminum stock that more closely resembles the Tormek jig or take one of my unmodified jaw SVM-45 (knife jig) jigs and cut off the shaft and make other mods I think are necessary for a self-centering jig. In fairness, these may work fine for use in the Lansky system. I just think they are not a good match for the Tormek. Rick
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