A pulley is born
Blank round of 6061-T6 aluminum barstock:
Rough OD cuts to size the blank:
Yes, that is smoke coming off the cutting oil.
Rough machined outside diameters:
Rough cut grooves:
Semi finished grooves:
After a thru hole was drilled, it was reamed to final size in order to make an accurate fit to a motor shaft:
Next, a cross hole was drilled for the set screw:
My digital positioning readout pictured above was used to center the hole in the bore and pulley groove:
After drilling, the threads were tapped for the set screw that fixes the pulley to the motor shaft:
Blank round of 6061-T6 aluminum barstock:
Rough OD cuts to size the blank:
Yes, that is smoke coming off the cutting oil.
Rough machined outside diameters:
Rough cut grooves:
Semi finished grooves:
After a thru hole was drilled, it was reamed to final size in order to make an accurate fit to a motor shaft:
Next, a cross hole was drilled for the set screw:
My digital positioning readout pictured above was used to center the hole in the bore and pulley groove:
After drilling, the threads were tapped for the set screw that fixes the pulley to the motor shaft: