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  • A Great Bending Tool for Solid Material

    K,Thanks!I don't know if I rediscovered something old or discovered something new. It works though.As you know, bending pipe has an interesting challenge in most curves: you have to induce even compression on one side of the pipe to create fairly even tension on the other side. It will be interesting to see how you do. I suspect that there is some sort of saddle shape you can make for each bending template face. I'd love to see what you come up with.R

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  • A Great Bending Tool for Solid Material

    H,Two rods can take 100% of the load. I have a factor of safety of about 1.2 when the Jack is hard to one side (which I avoid) and a factor of safety of 2 when centered. So do I think that is low? Maybe. I have no idea how I could ever double the load.Typical factors of safety cover unusual abuse, use, wear, impact loads and user error. I think I'm good on all but the last one!If you think of anything, please shout.

    Bruce, you are a braver man than I. When you bend pipe, I'd love to see how it goes and what you built. I'm relatively new to steel.

    Hamarito, Yep, lots of options for modifications. My first reaction to your idea is that in my set-up I have a 12 ton bottle jack in this puppy. 24,000 lbs and I use it all to complete the bends. All of that load has to be transferred across the lower beam, through the threaded rods, through the angles, through the chord length bolts, through the piece I'm bending, through the bending template and back into the bottle jack. (sorry to be overly pedantic here). In short, creating long gaps in the top of the beam as you describe is certainly possible, but would have to be looked at in terms of loads on the beam. After your note, I considered that I've used this thing more than 80 times and nothing has ever shifted under load, so it's unlikely there is a big safety issue lurking. What might...

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    Hamarito, Yep, lots of options for modifications. My first reaction to your idea is that in my set-up I have a 12 ton bottle jack in this puppy. 24,000 lbs and I use it all to complete the bends. All of that load has to be transferred across the lower beam, through the threaded rods, through the angles, through the chord length bolts, through the piece I'm bending, through the bending template and back into the bottle jack. (sorry to be overly pedantic here). In short, creating long gaps in the top of the beam as you describe is certainly possible, but would have to be looked at in terms of loads on the beam. After your note, I considered that I've used this thing more than 80 times and nothing has ever shifted under load, so it's unlikely there is a big safety issue lurking. What might be a suitable addition for me, from your suggestion is a simple rail on top of the I beam that acts as a "fence" (like a table saw) for the back of the base of the jack. This would center the jack under the angles above. I'm going to make that change.New ideas evolve out of others. Thanks!

    Ok! Stream of consciousness, love it.I've worked big construction all my life, been an EMT as Search and Rescue. I know horrific accidents.I ran numbers on the elements and gave myself for an amount of asymmetrical loading, but not 100%. I should check if two rods will take the load. That said, the obvious here is that my description avoided sizing members for people and drove the point home about big loads. One form of insurance I'm going to get is a full face mask.I've thought about asymmetrical bends "Nike Swoosh", but this rig is based on balancing loads on top of a jack. Everything is pretty much centered. I think rotation of the bending temple would be a very real problem with a swoosh. There might be a variant that works. Jacks are very bad news with side loads.The comm...

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    Ok! Stream of consciousness, love it.I've worked big construction all my life, been an EMT as Search and Rescue. I know horrific accidents.I ran numbers on the elements and gave myself for an amount of asymmetrical loading, but not 100%. I should check if two rods will take the load. That said, the obvious here is that my description avoided sizing members for people and drove the point home about big loads. One form of insurance I'm going to get is a full face mask.I've thought about asymmetrical bends "Nike Swoosh", but this rig is based on balancing loads on top of a jack. Everything is pretty much centered. I think rotation of the bending temple would be a very real problem with a swoosh. There might be a variant that works. Jacks are very bad news with side loads.The comment on varying the width of the top angles for other material: it will work with this rig. I could probably go thinner to zero and wider to about 3/4" by just adding washers. Note the length of the threaded bars is so great, they would just spread a bit. At some point, you'd drill four new holes in the I beam further out to allow for greater spacing of the angles.....after you checked the loads.Thanks, and tell me how yours goes! Stay safe.

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  • How to Build a Firewood Fence

    Hey Grant,Thanks for the thumbs up.Yep, lots of ways to keep the first layer off the ground. As I have a MIG welder handy and a lot of old hardware, a quick bit of welding of one washer on each bar did the trick for me.It's aged very well. I've received a lot of positive feedback from friends. The texture is a successful addition to the backyard.....and it was cheap!All the best.Ross

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