Step 1: Materials and Tools aka "What You Need"
- 3" schedule 40 PVC pipe
- wood screws
- Heat G un
- Drill Bit
- Counter Sink
Step 2: Cut 3" PVC into 5/8" Slices
A compound miter saw is really good for cutting consistent rings. Other saws including hand saws could also be used.
Approximate Dimensions for a NOMINAL 3" PVC pipe:
- outside diameter of 3.50 inches
- internal diameter of 3.25 inches
- thickness of 1/4"
Step 3: Heat Cut and Shape the PVC rings
WEAR GLOVES! It can be done, but I do not recommend going sans-gloves.
Work with one ring at a time. Heat up the ring with a heat gun until ring is easily bendable - almost limp. But be careful not to burn the plastic. Also avoid "toasting" the plastic. Once warmed up, use scissors to snip open the ring.
Periodically re-warm as working if needed. Platic will cool and harden fairly quickly More like seconds vs minutes.
While the ring is warm, lay on flat surface and re-shape the plastic into a "C" with curls on each end. See photos and illustrations. You can hold a bend it will stiffen as it cools. If the shape is not quite right, re-warm and bend again.
See video in next step for sample footage of "working" the PVC.