seldom (dick renker) Posted October 17, 2013 Share Posted October 17, 2013 yesterday i had to cut a piece of 1 5/16 round stock. when i put it in the vise on the bandsaw i couldnt get it tight enough and it kept spinning. i cut a piece of old inner tube and wrapped the stock with it and then clamped in vise. it held nicely and i was able to complete the cut. Quote Link to comment Share on other sites More sharing options...
John McPherson Posted October 17, 2013 Share Posted October 17, 2013 Welding students cut A LOT of pipe on our school bandsaws. I mean 200+ linear feet of 6" Schedule 80 made into 3 inch rings every semester. The only way to get a grip, hold it square to the blade, and not let the blade dig into the hydraulic vise jaws is to get 2x6 wood scraps from the Construction class dumpster. We use them as spacers between the jaws and the pipe. At 100psi clamping force, there is no movement of the pipe. Quote Link to comment Share on other sites More sharing options...
Mainely,Bob Posted October 18, 2013 Share Posted October 18, 2013 Copper jaw liners work well too. Quote Link to comment Share on other sites More sharing options...
Jim Coke Posted October 18, 2013 Share Posted October 18, 2013 Greetings Seldom, Sounds like a piece of line shaft.. 1 5/16... I do it all the time with a porta band... .... Use a wrap around and a silver pencil to mark and have at it... Forge on and make beautiful things Jim Quote Link to comment Share on other sites More sharing options...
Frosty Posted October 18, 2013 Share Posted October 18, 2013 Backing off the feed pressure ought to do it. I use my band saw all the time and too much down/feed pressure is usually the reason for a straight piece shifting. Tapers need spacers or shims or the vise won't hold them securely no matter how tight. Frosty The Lucky. Quote Link to comment Share on other sites More sharing options...
DSW Posted October 18, 2013 Share Posted October 18, 2013 I have a chunk of angle that I welded a pad on to that I use when clamping round stock in the saw. My regular computer is down so I swiped a similar pict off the web that shows what I did. The angle allows you to get a bit more "grip" than just the flat jaws would alone, but I will often still back down the down/feed pressure as well. Quote Link to comment Share on other sites More sharing options...
John McPherson Posted October 18, 2013 Share Posted October 18, 2013 DSW, that is a jig that I will have to copy! Cutting out bad welds to re-use the pipe is an ongoing issue, and that could solve it with one piece. Quote Link to comment Share on other sites More sharing options...
DSW Posted October 18, 2013 Share Posted October 18, 2013 Grumpy you might find some useful ideas in this thread where I swiped the picts from. The OP is a welding instructor and often has quite a few great ideas and tricks up his sleeve. http://weldingweb.com/showthread.php?87051-Do-you-have-your-part-correctly-clamped-before-sawing-it Quote Link to comment Share on other sites More sharing options...
bosox Posted November 1, 2013 Share Posted November 1, 2013 Used c-clamp for positive clamping. Try the trick of turning your drill press vise upside down and clamp the stock with it laying on the table. Quote Link to comment Share on other sites More sharing options...
Chuck in Ms Posted November 1, 2013 Share Posted November 1, 2013 Good tip seldom. But next time try a hot cut hardie on the anvil, its easier than you may think. Quote Link to comment Share on other sites More sharing options...
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