sequoia
Well-known member
Here is how I radius neck and tail blocks using a drill press and spindle sander. Not the ideal way to do things, but it works.
First the drill press: The Korean Beast.
Next: Truing up the drill press. You can use either a luthier's square or a coat hanger to get the chuck at absolutely 90 degrees. I like the coat hanger method best. Put coat hanger piece into the chuck and rotate while adjusting platten until the metal just touches even in a perfect 360 degree circle. It is vitally important that your spindle be at a perfect 90 degree plumb on all axis. No kidding or nasty things can happen at assembly. Don't go there.
or
Then put in spindle and using a radius jig replicate the radius on a block of wood and viola you have the desired radius. Shown here is a 17" radius for a tail block.
The spindle.
The jig and wood.
Not the ideal set-up for sure, but works for me.
First the drill press: The Korean Beast.
Next: Truing up the drill press. You can use either a luthier's square or a coat hanger to get the chuck at absolutely 90 degrees. I like the coat hanger method best. Put coat hanger piece into the chuck and rotate while adjusting platten until the metal just touches even in a perfect 360 degree circle. It is vitally important that your spindle be at a perfect 90 degree plumb on all axis. No kidding or nasty things can happen at assembly. Don't go there.
or
Then put in spindle and using a radius jig replicate the radius on a block of wood and viola you have the desired radius. Shown here is a 17" radius for a tail block.
The spindle.
The jig and wood.
Not the ideal set-up for sure, but works for me.
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