Possible reason found for spreader bar failure
I designed my bridge hammock to run 7/64" amsteel for the suspension arcs thru fabric tubes - not sewn to the fabric. At the ends of the arcs I had fixed eye loops spaced exactly 80" apart, the length of the hammock body. I had the spreader bars running thru fabric tubes to keep the hammock body from slipping.
After the .433 easton aluminum foot spreader broke, I reassembled the hammock, but noticed that the suspension arc amsteel seemed too long.
IT WAS - IT WAS NOW 83" (versus the original 80"). Both of them stretched the same length. Oh my aching back.
I have been using amsteel for whoopies and never knew that it stretched, since stretch is not noticable in whoopies (they are constantly being readjusted).
LESSON LEARNED - PLAN FOR 3" OF STRETCH OVER 80" FOR 7/64" AMSTEEL OR PRESTRESS YOUR SUSPENSION PRIOR TO ASSEMBLY.
Hangnout figured it out, if you read his post.
.433 easton tubing will probably work fine for you potential bridge builders, but I am still moving up to .625.
Happy Trails, Happy Hangs
That was some impressive strength gain in up-sizing. Thanks for applying your education to the most important subject in the world (hammocks, of course!).
the stress must be all cpmpression, keep the spreaders in direct line with the lines. I have been using rather lite carbon fiber colapsable ti goat poles, just keep everything in a direct line// gnome
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