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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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Delta Model 28-560 band saw - opinions?
This is a somewhat older model all metal construction bandsaw where the
blade tracks on 3 instead of just 2 main guide wheels giving the over all housing a triangular configuration and a deeper throat. Does anybody here own or have any experience with this model and can you tell me what you think of it pro or con? I have the opportunity to pick one up for reasonable money but I'm wondering about the "non standard" 3 wheel configuration. Thanks for any insight, Dennis van Dam PS Oh yeah, obligatory metal content, I'm going to be cutting aluminium with it. |
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This is a somewhat older model all metal construction bandsaw where the
blade tracks on 3 instead of just 2 main guide wheels giving the over all housing a triangular configuration and a deeper throat. I think the determining factor is the diameter of the wheels. I believe that some three wheelers used very small wheels so the blade flexed a lot and were prone to break. I could be wrong though. The only other factor would be the blade length and if blades are available in that length. chuck |
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I would not touch a 3 wheeler like this. The problem is alignment - it
is a bitch. Chuck Sherwood wrote: This is a somewhat older model all metal construction bandsaw where the blade tracks on 3 instead of just 2 main guide wheels giving the over all housing a triangular configuration and a deeper throat. I think the determining factor is the diameter of the wheels. I believe that some three wheelers used very small wheels so the blade flexed a lot and were prone to break. I could be wrong though. The only other factor would be the blade length and if blades are available in that length. chuck |
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(Chuck Sherwood) wrote: The only other factor would be the blade length and if blades are available in that length. Dennis van Dam wrote: The blade length factor already occured to me. I've downloaded the parts list and the owners manual from Delta (a good sign that these are still available) and the one piece of info not found in either is blade length. If I have to have blades made up it wouldn't be worth it even if the saw was free. Peter Wiley wrote: Why? I routinely get blades made up. The cost is trivial. In fact I have a blade welder on my big bandsaw but would still get blades made to length, it's simpler. Find a local supplier and ask how much they'll charge to make blades, you may well find they're cheaper than buying the same thing off the shelf. PDW I guess, without giving it too much thought, I just assumed having blades made up would be significantly more expensive. Glad to hear this is not neccesarily the case and I'll check locally to see what the deal is. The other consideration with made up blades (and this one was definately at the forefront when I made the statement) is finding yourself desperately in need of a replacement on a Friday at 4:45pm (or anytime on Sat or Sun) and not being able to run down to Lowes/HD for a spare. True, this is nothing a bit of planning ahead couldn't prevent but we all know how that goes come 4:45PM Friday. Peter, thanks for the reply. Dennis |
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In article
, Dennis van Dam wrote: (Chuck Sherwood) wrote: The only other factor would be the blade length and if blades are available in that length. Dennis van Dam wrote: The blade length factor already occured to me. I've downloaded the parts list and the owners manual from Delta (a good sign that these are still available) and the one piece of info not found in either is blade length. If I have to have blades made up it wouldn't be worth it even if the saw was free. Peter Wiley wrote: Why? I routinely get blades made up. The cost is trivial. In fact I have a blade welder on my big bandsaw but would still get blades made to length, it's simpler. Find a local supplier and ask how much they'll charge to make blades, you may well find they're cheaper than buying the same thing off the shelf. PDW I guess, without giving it too much thought, I just assumed having blades made up would be significantly more expensive. Glad to hear this is not neccesarily the case and I'll check locally to see what the deal is. The other consideration with made up blades (and this one was definately at the forefront when I made the statement) is finding yourself desperately in need of a replacement on a Friday at 4:45pm (or anytime on Sat or Sun) and not being able to run down to Lowes/HD for a spare. True, this is nothing a bit of planning ahead couldn't prevent but we all know how that goes come 4:45PM Friday. Peter, thanks for the reply. The point about the 3 wheeler being a PITA to keep tracking correctly is, I think, a good one. Never had the pleasure of finding out myself, but I can believe it. My cheapo 4x6 H/V metalcutting bandsaw works ok and I keep a few extra blades about for it because the flexing of the blades makes their working life pretty short, IMO. The other trick is, it's not difficult to silver solder bandsaw blades to length. You grind tapers on both ends, overlap in a simple jig and silver solder together. Home Shop Machinist has had a number of articles on how to do this over the years. It's a useful thing to know if you break the one & only band you have at 4:45 Friday :-) PDW |
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In article ,
Peter Wiley wrote: In article , Dennis van Dam wrote: [ ... ] The other consideration with made up blades (and this one was definately at the forefront when I made the statement) is finding yourself desperately in need of a replacement on a Friday at 4:45pm (or anytime on Sat or Sun) and not being able to run down to Lowes/HD for a spare. True, this is nothing a bit of planning ahead couldn't prevent but we all know how that goes come 4:45PM Friday. So -- does the bandsaw in question have a built-in blade welder? If so, just stocking some roll form blades would suffice. That's what I do. The point about the 3 wheeler being a PITA to keep tracking correctly is, I think, a good one. Never had the pleasure of finding out myself, but I can believe it. It depends. If the wheels have crowned rubber tires, it should not be a significant problem. My cheapo 4x6 H/V metalcutting bandsaw works ok and I keep a few extra And if your experience is with this, I can understand the concern with tracking, as the 4x6 does *not* have crowned rubber tires -- it is all machined cast iron, with a flange to set the back edge of a single width blade (1/2") -- no others need apply. I've got an old Emco 3-wheel bandsaw, with rubber tires (on fiberglass-epoxy wheels, I think), and have no problems with tracking. It is not an all-metal bandsaw, however, but rather has a mix of metal panels and chassis, with molded plastic end pieces. Enjoy, DoN. -- Email: | Voice (all times): (703) 938-4564 (too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html --- Black Holes are where God is dividing by zero --- |
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In article ,
Dennis van Dam wrote: wrote: I would not touch a 3 wheeler like this. The problem is alignment - it is a bitch. Now_there's_a parameter that had not occured to me at all! Now that you bring it to my attention, I can see what a pecker it would be if one idler wheel was trying to track the blade the outside and the next was trying to track it to the inside. Or even if both idlers where tracking the blade to run off the edge(s) the same way figuring which idler to adust is going to be more trial and error than typical. Checking the downloaded PDF manual for this saw I'm noticing only one of the idler wheels (lower aft) has tracking adjustment. The other (top) idler never gets out of adjustment? I can see how this might be a problem. If the wheels are crowned (with rubber tires), this is not normally a problem two-wheeled or three wheeled. [ ... ] The band saw was available on a "Buy it Now" only eBay auction for $75. It needs a $24 drive belt and it was going to be a 3 hour trip one way to pick it up so I was already waffling. I think I'll give it a miss. Hmm ... that sounds like a nice price -- depending on the construction. Enjoy, DoN. -- Email: | Voice (all times): (703) 938-4564 (too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html --- Black Holes are where God is dividing by zero --- |
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In article ,
Peter Wiley wrote: In article , DoN. Nichols wrote: [ ... ] I've got an old Emco 3-wheel bandsaw, with rubber tires (on fiberglass-epoxy wheels, I think), and have no problems with tracking. It is not an all-metal bandsaw, however, but rather has a mix of metal panels and chassis, with molded plastic end pieces. Well, I've always been favourably impressed with Emco stuff. My Maximat 11 lathe is a gem. As is my little Compact-5/CNC. The matching (but not CNC) mill (made by combining the milling attachment which bolts to the back of the ways for the Compact-5 with a much heavier X/Y table is pretty nice, too, but the spindle speed can't be cranked down low enough for some operations, and I had to design and build an A-frame bracket to hold the top end of the column from vibrating on heavier cuts. Enjoy, DoN. -- Email: | Voice (all times): (703) 938-4564 (too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html --- Black Holes are where God is dividing by zero --- |
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In article , DoN. Nichols
wrote: In article , Peter Wiley wrote: In article , Dennis van Dam wrote: [ ... ] The other consideration with made up blades (and this one was definately at the forefront when I made the statement) is finding yourself desperately in need of a replacement on a Friday at 4:45pm (or anytime on Sat or Sun) and not being able to run down to Lowes/HD for a spare. True, this is nothing a bit of planning ahead couldn't prevent but we all know how that goes come 4:45PM Friday. So -- does the bandsaw in question have a built-in blade welder? If so, just stocking some roll form blades would suffice. That's what I do. The point about the 3 wheeler being a PITA to keep tracking correctly is, I think, a good one. Never had the pleasure of finding out myself, but I can believe it. It depends. If the wheels have crowned rubber tires, it should not be a significant problem. My cheapo 4x6 H/V metalcutting bandsaw works ok and I keep a few extra And if your experience is with this, I can understand the concern with tracking, as the 4x6 does *not* have crowned rubber tires -- it is all machined cast iron, with a flange to set the back edge of a single width blade (1/2") -- no others need apply. I have 3 bandsaws. A 12" 2 wheel woodcutting machine, the generic 4x6 metalcutting one and a 18" wood/metalcutting 2 wheel machine with blade welder that weighs close to 500 kg. Never owned a 3 wheel machine so while I can in theory see why they might be more finicky, it'd depend on construction. I've got an old Emco 3-wheel bandsaw, with rubber tires (on fiberglass-epoxy wheels, I think), and have no problems with tracking. It is not an all-metal bandsaw, however, but rather has a mix of metal panels and chassis, with molded plastic end pieces. Well, I've always been favourably impressed with Emco stuff. My Maximat 11 lathe is a gem. PDW |
#15
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