Step #1: Cut parts to lengthPrevNext
- Measure and mark the following lengths:
- 1 x 50" length ("long"), 1 x 25" length ("medium"), and 3 x 17" lengths ("short") conduit
- 2 x 24" length pipe
- 3 x 8" ball chain
- The plastic pipe cutter will snip right through the conduit in one stroke. To cut the pipe, apply pressure and rotate steadily, like a metal tubing cutter, and it will slice neatly in 10 turns or so. Use wire cutters on the ball chain.
- If the conduit gives you grief because of its tendency to coil, try marking the lengths you want to cut lightly on a door frame in pencil. Then flatten the conduit against the door so you can measure and mark the length accurately.
Step #2: Clean up the pipe (optional)PrevNext
If you're picky about appearances, clean the factory ink off the outside of the pipes and pipe fittings using a paper towel and a touch of acetone.
Step #3: Test assemblyPrevNext
- Don't glue anything yet!
- The bottom ring consists of the long conduit joined to the medium conduit in a circle with two "tee" fittings, as shown. The side openings of the "tee" fittings should point perpendicularly away from the plane of the circle, in the same direction.
- The top ring consists of the three short conduits joined in a circle. One of the three joints is a "straight" fitting, while the other two are "tee" fittings. As before, the side openings of the "tee" fittings should point perpendicularly away from the plane of the circle, in the same direction.
- Join the top ring to the bottom ring using the two lengths of pipe as shown. Adjust the angle of the "tee" fittings as needed to center the top ring over the bottom ring.
Step #4: Glue the ring parts togetherPrevNext
- Following the label directions on your cement, glue every conduit end into its joint.
- Allow the cement time to set.
- Do not apply glue to the pipe ends, as these are the demountable joints that allow the frame to collapse for storage or transport.
Step #5: Drill holes for clip retaining chainsPrevNext
- Once the glue dries, remove the top ring and drill a 3/16" hole through each of its three fittings (two "tees" and one "straight"), as shown.
- Drill through both sides of the fitting.
Step #6: Attach retaining clips and chainsPrevNext
- Attach an eye coupling to one end of a length of ball chain.
- Fish the other end through both holes in one of the PVC fittings, and thread the free end through the eye coupling at the other.
- String a second coupling onto the chain, as shown.
- Thread the free end of the chain through the hole in a broom clip, wrap it back around, and attach it to the loose coupling.
- Repeat twice more for the other two clips and chains.