01-19-2021, 07:09 PM
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Contest, Sport, it's all good......
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Join Date: Jul 2008
Location: West of Minneapolis, MN
Posts: 760
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A thing I learned the hard way was a dowel can be "crunched" in the chuck, and promote wobbling. So I began to use a short piece of music wire, about 3/16" to 1/4" (or 1/8" for a really small nose), depending on the cone size.
Of course afterwards, a process of using a grinding bit or series of runs with a small drill bit to drill away the balsa along the sides of the metal rod to be able to remove it.
Often though I turned cone shapes as master molds for vac-forming, so I leave the music wire in and have a big hole in the center of the vac-forming platform to let the rod go down into.
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