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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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Bending Moment for 1 inch Cast Iron Pipe
I am building a cantilever support for a manual winch to raise a 24 foot
vertical antenna weighing 40 pounds. I plan to mount the winch on the end of a 24 inch section of 1 inch cast iron pipe and am concerned about the pipe failing. The non winch end will be attached to a Tee cast iron fitting with the support pipe ground mounted in concrete [sort of an inverted 'L']. Any comments or ideas appreciated. -- for full context, visit http://www.polytechforum.com/metalwo...pe-630776-.htm |
#2
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Bending Moment for 1 inch Cast Iron Pipe
"KW1K" wrote in
message roups.com... I am building a cantilever support for a manual winch to raise a 24 foot vertical antenna weighing 40 pounds. I plan to mount the winch on the end of a 24 inch section of 1 inch cast iron pipe and am concerned about the pipe failing. The non winch end will be attached to a Tee cast iron fitting with the support pipe ground mounted in concrete [sort of an inverted 'L']. Any comments or ideas appreciated. -- for full context, visit http://www.polytechforum.com/metalwo...pe-630776-.htm http://www.dxzone.com/cgi-bin/dir/jump2.cgi?ID=12733 I proof test the stuff I build from water pipe to at least 5 times the working load. http://www.engineersedge.com/analysi...ety-review.htm https://www.amazon.com/Moultrie-440-.../dp/B000KKD09I https://www.amazon.com/Changlong-ins...e+scale+1000kg |
#3
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Bending Moment for 1 inch Cast Iron Pipe
KW1K wrote:
I am building a cantilever support for a manual winch to raise a 24 foot vertical antenna weighing 40 pounds. I plan to mount the winch on the end of a 24 inch section of 1 inch cast iron pipe and am concerned about the pipe failing. The non winch end will be attached to a Tee cast iron fitting with the support pipe ground mounted in concrete [sort of an inverted 'L']. Any comments or ideas appreciated. Just test it first. Non-domestic pipe and fittings are of varied and frequently real poor quality. Just last night I over torqued a 1/4-20 bolt with a tiny wrench, wasn't even trying to cinch it down. I though the threads were tight, but the damn thing was twisting apart. Got the broken off part out with needle nose pliers. That's grade 3 from a big box store. |
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