4" Truss Bracket
thingiverse
This is a bracket designed to create a 4" truss system. It takes 1/2" EMT as the structure with 3/4" PVC to "bulk" up the structure. Easily supports a human at a 10ft length. 1/8" hole for 1 1/4" self taping screws to attach the brackets to the EMT conduit. Spacing between brackets can range to whatever you choose but photos depict 12" spacing, which has adequate strength for most applications.
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