Quote:
Originally Posted by NeilBlanchard
Todd, thanks for the pointer to McMaster-Carr. The chuck on my PhlatPrinter 3 (which uses a Chicago Tools flexible shaft router) is small - 3/16" is the maximum shank size. And they do have a couple 4" long bits, their cutting flutes are just 1 3/8" long. This would not have worked because I need to be able to cut through the 2" in one pass - there is no digital feedback correction and any small error over say 40-50 lineal feet of cutting would cause melting on the smooth shank on the second pass.
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We have a local shop who sharpens our milling tools grind a relief in the shaft of some of our T-slot cutters to give us the extra clearance we need to reach just a little further than what they were designed for. You could have a shop do the same thing to the shank of your tools just above the cutting flutes to give the bit the clearance needed to not melt the material on the second pass.