The name is from an acronym of the design, which has Tw(in) R(idge) P(oles) or TwRP.
Materials:
· Four pieces of 10-foot Ύ EMT
· Four 78* Peak Corner Fittings
· Four 7/8 leg tips
· Four 3/16 washers
Construction:
· Cut four 55 pieces from two pieces of conduit to make the legs. The leftover 10 pieces will be used as cross braces.
Assembly:
· Place two fittings on each 10 cross brace.
· Place assembled fittings on two 10 lengths of conduit.
· Put one washer and leg tip on each leg.
· Tilt assembly up at each end to install legs.
· Seat the tubes into fittings and snug eye bolts.
Specs:
· Hang Point Height = 54
· Hang Point Distance = 121
· Leg Spread = 32
· Ύ EMT version weight ~ 23 pounds
· Test Dummy weight ~200 pounds
· Cost
o Parts = $36.59
o Shipping = $14.22
o Total = $50.81
· Left over pieces = 0.
Suspension is attached at the corner fittings, not the center of the cross-braced tubes. All compression forces must be in line with the tubes.
This stand was designed for indoors or fair-weather use, so its not big enough to install a tarp unless its draped over the entire stand. My hammock is 10 4, with a 106 SRL. Suspension length at each end is just under 9. The stand could be adapted to support a tarp by using taller legs and splice fittings for longer ridge poles, but I would move up to 1 conduit for more stiffness.
A 1-inch conduit version will cost about $15 more and be about 10 pounds heavier. A chain-link fence rail version, with longer cross braces, will probably work to hang two hammocks.
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