How to Build a Rubber Band Heat Engine

 by rcgroves
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Step 2: Marking the Spokes


1. Measure the length of one spoke.

My bike wheel is 26 inches in diameter. Therefore each spoke has a length of 11.5 inches.

2. Mark 1.75 inches off the tip of the spoke near the axle.

3. Mark 1.75 inches off the tip of the small aluminum stud.

4. Repeat sub-steps 2 and 3 so that every spoke is marked the same around the wheel.

Tip: If you don't have a 26 inch diameter bike wheel, no worries. You can still mark 1.75 inches off each end of the spoke because it gives you the best room for the next step, cutting and bending the hooks.

 
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