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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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Posted to rec.crafts.metalworking
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There are various web sites showing modifications to the ubiquitous 4x6
HV bandsaw (Roy's is a good one). I made a few of the mods shown, but I put a twist on a couple of them. One site showed a drill press vise mounted on a plate, which was then held by the saw's vise. The plate could be extended towards the blade and this allowed cutting pieces that were too short to be held by the saw's vise. The trouble with that, for me, was that the saw blade guide wouldn't clear the DP vise. So I turned the vise on end and it worked just fine: http://home.comcast.net/~bobengelhardt/bandsawvise.jpg Another mod suggested was to replace the very light weight vise wheel with something heavy, to get some inertia to speed up lengthy movements. One guy cut a wheel out of plate. I went to the junk pile and found this: http://home.comcast.net/~bobengelhardt/bandsawwheel.jpg It's cast iron and weighs a few pounds. Give it a flick and it spins about 4 revs. It's a collar used to hold plates on a weight lifting bar! Bob |
#2
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Posted to rec.crafts.metalworking
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![]() Thanks for the plug there Bob....Much appreciated. I do the drill press vise thing myself, and have on two occasions got sidetracked and cut one vise in half and the other almost allthe way through......At least they were el cheapo junk so not much of a loss. One more mod I want to do to mine is to extend the hadwheel shaft for the vise. Sometimes it can get awkward to operate with it so close to the head.. Thig is my shop is so jam packed and full I owuld have to add an addition on to make room for the extension. Regards On Fri, 24 Feb 2006 17:14:13 -0500, Bob Engelhardt wrote: There are various web sites showing modifications to the ubiquitous 4x6 HV bandsaw (Roy's is a good one). I made a few of the mods shown, but I put a twist on a couple of them. One site showed a drill press vise mounted on a plate, which was then held by the saw's vise. The plate could be extended towards the blade and this allowed cutting pieces that were too short to be held by the saw's vise. The trouble with that, for me, was that the saw blade guide wouldn't clear the DP vise. So I turned the vise on end and it worked just fine: http://home.comcast.net/~bobengelhardt/bandsawvise.jpg Another mod suggested was to replace the very light weight vise wheel with something heavy, to get some inertia to speed up lengthy movements. One guy cut a wheel out of plate. I went to the junk pile and found this: http://home.comcast.net/~bobengelhardt/bandsawwheel.jpg It's cast iron and weighs a few pounds. Give it a flick and it spins about 4 revs. It's a collar used to hold plates on a weight lifting bar! Bob -- \\\|/// ( @ @ ) -----------oOOo(_)oOOo--------------- oooO ---------( )----Oooo---------------- \ ( ( ) \_) ) / (_/ The original frugal ponder ! Koi-ahoi mates.... |
#3
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![]() "Bob Engelhardt" wrote: (clip) http://home.comcast.net/~bobengelhardt/bandsawvise.jpg http://home.comcast.net/~bobengelhardt/bandsawwheel.jpg (clip) ^^^^^^^^^^^^^^^^^^^^^^ Bob, it took me just a bit to realize what makes your pictures look so "clean." So many of us send pictures in which the background clutters up the view, sometimes making it hard to figure out exactly what we are looking at. I realize that your technique is so simple that it might be overlooked--so I will point it out. You use flash at fairly close range. Since the light falls by the inverse square law, the background comes out dark, and the pictures look NEAT. |
#4
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Posted to rec.crafts.metalworking
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![]() "Bob Engelhardt" wrote in message ... There are various web sites showing modifications to the ubiquitous 4x6 HV bandsaw (Roy's is a good one). I made a few of the mods shown, but I put a twist on a couple of them. One site showed a drill press vise mounted on a plate, which was then held by the saw's vise. The plate could be extended towards the blade and this allowed cutting pieces that were too short to be held by the saw's vise. The trouble with that, for me, was that the saw blade guide wouldn't clear the DP vise. So I turned the vise on end and it worked just fine: http://home.comcast.net/~bobengelhardt/bandsawvise.jpg Another mod suggested was to replace the very light weight vise wheel with something heavy, to get some inertia to speed up lengthy movements. One guy cut a wheel out of plate. I went to the junk pile and found this: http://home.comcast.net/~bobengelhardt/bandsawwheel.jpg It's cast iron and weighs a few pounds. Give it a flick and it spins about 4 revs. It's a collar used to hold plates on a weight lifting bar! Bob One thing I do fairly often to hold short pieces is to make a "vise extension" with a couple pieces of square tube. I put the piece to be cut between the tubes, put some scraps to build up the same thickness between the opposite ends of the tube and clamp the whole thing with the saw vise. If need be, I can saw through tubes and all. The forces involved in sawing are fairly light, so it's nothing like clamping something to be milled... Jerry |
#5
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Posted to rec.crafts.metalworking
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In article
, "Leo Lichtman" wrote: "Bob Engelhardt" wrote: (clip) http://home.comcast.net/~bobengelhardt/bandsawvise.jpg http://home.comcast.net/~bobengelhardt/bandsawwheel.jpg (clip) ^^^^^^^^^^^^^^^^^^^^^^ Bob, it took me just a bit to realize what makes your pictures look so "clean." So many of us send pictures in which the background clutters up the view, sometimes making it hard to figure out exactly what we are looking at. I realize that your technique is so simple that it might be overlooked--so I will point it out. You use flash at fairly close range. Since the light falls by the inverse square law, the background comes out dark, and the pictures look NEAT. What also works is a piece of colored paper behind the item being photographed. Or a painter's cloth dropcloth behind a big machine. (The plastic dropcloths and tarps are too shiny and crinkley to work well.) These are standard photographer's tricks. The reflected light from the background will also help fill in some shadows. Google for "seamless background photography" for more information. Joe Gwinn |
#6
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![]() "Jerry Foster" wrote in message . net... "Bob Engelhardt" wrote in message ... There are various web sites showing modifications to the ubiquitous 4x6 HV bandsaw (Roy's is a good one). I made a few of the mods shown, but I put a twist on a couple of them. One site showed a drill press vise mounted on a plate, which was then held by the saw's vise. The plate could be extended towards the blade and this allowed cutting pieces that were too short to be held by the saw's vise. The trouble with that, for me, was that the saw blade guide wouldn't clear the DP vise. So I turned the vise on end and it worked just fine: http://home.comcast.net/~bobengelhardt/bandsawvise.jpg Another mod suggested was to replace the very light weight vise wheel with something heavy, to get some inertia to speed up lengthy movements. One guy cut a wheel out of plate. I went to the junk pile and found this: http://home.comcast.net/~bobengelhardt/bandsawwheel.jpg It's cast iron and weighs a few pounds. Give it a flick and it spins about 4 revs. It's a collar used to hold plates on a weight lifting bar! Bob One thing I do fairly often to hold short pieces is to make a "vise extension" with a couple pieces of square tube. I put the piece to be cut between the tubes, put some scraps to build up the same thickness between the opposite ends of the tube and clamp the whole thing with the saw vise. If need be, I can saw through tubes and all. The forces involved in sawing are fairly light, so it's nothing like clamping something to be milled... Jerry I drilled and tapped the jaws 1/4-20 and bolted extension plates (almost out to the blade) to the insides of the existing vice jaws; countersunk the screw heads below the surfaces. Then there was one problem remaining, that of the entire moveable jaw assembly wanting to skew around its mount when tightening up on a short workpiece. That was solved with a 3" long packing screw threaded through the moveable jaw and its extension plate. The packing screw is turned out to meet the fixed jaw at a point that holds the jaws roughly parallel to each other when holding a workpiece. Bob Swinney |
#7
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![]() "Joseph Gwinn" wrote: (clip) a piece of colored paper behind the item being photographed. Or a painter's cloth dropcloth behind a big machine. ^^^^^^^^^^^^^^^^^^^ Oh, I know all the standard photographer's tricks. Another one is to use a wide aperture, so the background is thrown out of focus. But, my point was the utter simplicity and effectiveness of what Bob Englehardt did. |
#8
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One simple quick way to stop the saw from coming all the way down on my HF
saw is to slip a piece of 3/4 plastic pipe over the top of the downstop bolt that is just a bit longer that just clears the tooling that I don't want cut. Then when done I put the pipe with the tooling for next time I need it. I made a tooling plate to slit collets on my saw and even index collet 90 degrees. If anyone wants pics let me know. Jim "Robert Swinney" wrote in message ... "Jerry Foster" wrote in message . net... "Bob Engelhardt" wrote in message ... There are various web sites showing modifications to the ubiquitous 4x6 |
#9
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Leo Lichtman wrote:
... the background comes out dark, and the pictures look NEAT. Thanks! A peeve of mine is poor pictures (e.g., on eBay), so I feel an obligation to make them as good as I'd like others to be. It's satisfying, too. Bob |
#10
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Robert Swinney wrote:
I drilled and tapped the jaws 1/4-20 and bolted extension plates (almost out to the blade) to the insides of the existing vice jaws; ... I was looking at my saw and thinking about this approach and I realized that if I extended the jaws, then I couldn't adjust them to an angle without them getting closer to the blade and getting trimmed. Is your geometry different, or do you just not cut at angles, or do you take the extensions off, or what? Bob |
#11
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Another simple photo improvement that few do is crop. This gets most of
the background distractions out and dramatically reduces the file size. Just trimming edges usually cuts the files size in half. Bob Engelhardt wrote: Leo Lichtman wrote: ... the background comes out dark, and the pictures look NEAT. Thanks! A peeve of mine is poor pictures (e.g., on eBay), so I feel an obligation to make them as good as I'd like others to be. It's satisfying, too. Bob |
#12
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![]() "lens" wrote: (clip) Just trimming edges usually cuts the files size in half. ^^^^^^^^^^^^^^^^ I just did a quick calculation, just for fun. If you trim 1.6" all the way around an 8x10, you cut the area in half. |
#13
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Bob Engelhardt wrote:
Leo Lichtman wrote: ... the background comes out dark, and the pictures look NEAT. Thanks! A peeve of mine is poor pictures (e.g., on eBay), so I feel an obligation to make them as good as I'd like others to be. It's satisfying, too. Bob I have been inspired...http://webpages.charter.net/sjyoung1/ |
#14
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S Young wrote:
I have been inspired...http://webpages.charter.net/sjyoung1/ Good work! Good deal, too - $2.99 for 2 hand wheels. You *might* get raw stock for that price. Stock is all around us if we think out of the box. Bob |
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