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Making a Corrugated Bead with the Bonny Doon Microfold
Brake
(No solder!)
Above: 1. Start with a length of 30-34 gauge metal,
roll through the Bonny Doon Microfold Brake
 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.
At this point you can slightly push the entire bead
inward to round-up and size.
A little light hammering with a plastic mallet trues
up the sphere
Finished Bead
Some examples, brass pieces in forground are commercially
made
Please send e-mail to G
Phil Poirier to provide feedback about this page.
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