Magnetic circle cutter tool

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I had an old canera tripod that I modified for a traming tool about 25 years ago. Like many people I don't throw any thing away unless it is totaly shot. So I modified the old tool for a new one. Old Junk into new junk!!Parts list1) Old camera trypod2) HF Magnetic ground block 307543) 2" dia x 3/4 long al stock4) 3/8 - 16 bolt 1/2 long5) 3/8 flat washer Q 26) 1/4 20 x 1 bolt & lock washer 7) Nut from a 3/4" diaelectric union (Plasma torch holder)The tool will adjust from 4 in to 127 in. Much more than I will EVER use!The legs from the trypod screw together to get to the max lengthI added the roller assembly as a after thought. When the leg(s) is extended it tends to sag. the roller maintaines the correct plasma to work distance.The 1/4 bolt is for non magnetic material. Drill a 1/4 in hole for centerSorry, only two welds for the entire project. Some lathe work on the swing nuckle, and trypod legs. Attached Imageskeith The older the boys, the more expensive the TOYS!!Previous owned;Linde 300 Amp welderMiller Gas drv welder, Tumbstone,Dayton Miller ac to dc converter,High frequency unitLongevity LS60PCurrrently owned;Longevity WeldAll 200PI
Reply:Nice job their. Should work pretty great.Nice sig to. Can't figure out why you show some good Miller and Lincoln machines and than bold the font on the junk.Last edited by jamlit; 08-15-2009 at 08:34 AM.Miller DVI2Lincoln Precision Tig 225Thermodynamics Cutmaster 38Everything else needed.
Reply:Cool idea!  Very creative.  Does the magnet stick well enough?  I rigged one up a while back and had to add a pin in the middle and drill a hole in whatever I was cutting so the magnet wouldn't shift mid cut.  Talk about aggrivating.  I thought my magnet was pretty strong but turns out it would slide ever so slightly while I was cutting.  May have been my technique too.
Reply:Some of the magnetics are weaker than others.   I went through the magnetics that were in the shelf and found the strongest.   Also the place whare the swing arm attaches to the magnetic base should very loose, so that it does not bind while cutting.keith The older the boys, the more expensive the TOYS!!Previous owned;Linde 300 Amp welderMiller Gas drv welder, Tumbstone,Dayton Miller ac to dc converter,High frequency unitLongevity LS60PCurrrently owned;Longevity WeldAll 200PI