Making a Corrugated Bead with the Bonny Doon Microfold Brake (No solder!)
By Phil Poirier, Poirier Studios
   

Above: 1. Start with a length of 30-34 gauge metal, roll through the Bonny Doon Microfold Brake (inset)

 

2. Place the annealed piece on a wooden or delrin 1/2 round channel

 

3. Use a pipe or round mandrel to form the corrugated piece down into the 1/2 round channel

 

4. Start wrapping the annealed 1/2 round channel of metal by pinching the ends as shown above, do not pinch the end corrugations

 

Note that the last corrugation is not pinched, this allows it to mate with the opposite end

 

5. Overlap the two end corrugations, pinch with some small pliers to secure.

 

A little light hammering with a plastic mallet trues up the sphere

 

Finished Bead

 

Some examples, brass pieces in forground are commercially made

 

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