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Signing UpStep 1Materials required
- the sprocket from a bicycle (the big one from the crank)
- two 18" lengths of 1/2 inch threaded iron pipe
- one pipe floor flange
- one pipe "T" fitting (1/2 3/4 3/4 threads)
- one 1/2" 45 degree pipe fitting
- one 1/2" 90 degree pipe fitting
- two 3/4" copper tubing couplers
- one lamp socket
- one 9' extension cord
- one rubber bushing
- one old mechanic's trouble light
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