At work the Boss has a HF 9x20 tucked back behind the counter to do quick and dirty jobs on small parts for customers.Awhile back it dropped the setscrew out of the motor pulley and spun the shaft in the pulley.Patched it temporarily when it happened with shim stock and a new setscrew,but it wasn't right.
After seeing this thread by Philbur I had the idea to fix it by channeling my inner German
Bored a 3/4"per foot taper in the pulley and machined up a collet of the same taper with a 14mm bore.Sawed the splits in the collet with a .035" Jewelers saw and drilled a 5mm hole for a pin to engage the motor shaft key slot.
The collet is pulled up tight with the 1/2-20 nut and washer.It drew up tight,won't slip ever and the run out is less than .001"TIR.Only took me 1hr and 15 minutes not counting looking for a Jeweler's saw that wasn't dull or split
After seeing this thread by Philbur I had the idea to fix it by channeling my inner German
Bored a 3/4"per foot taper in the pulley and machined up a collet of the same taper with a 14mm bore.Sawed the splits in the collet with a .035" Jewelers saw and drilled a 5mm hole for a pin to engage the motor shaft key slot.
The collet is pulled up tight with the 1/2-20 nut and washer.It drew up tight,won't slip ever and the run out is less than .001"TIR.Only took me 1hr and 15 minutes not counting looking for a Jeweler's saw that wasn't dull or split
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