The Sherline 5000 mill spindle has a Morse #1 taper and 3/4-16 threads. The threads are used to mount Sherline's 3/8 end mill holder. They emphasize the importance of precision in these threads, so I don't want to damage them.
Would it be foolish to make a fly cutter that mounts to the threads? The closest I can single-point on my metric mini lathe would be 15.85 TPI. The spindle has about 4 turns of threads, so my threads would be about 0.0024 off over 4 turns. Would that risk damaging the spindle threads? What if I make the fly cutter body out of brass or aluminum so it deforms first?
Thanks!
Would it be foolish to make a fly cutter that mounts to the threads? The closest I can single-point on my metric mini lathe would be 15.85 TPI. The spindle has about 4 turns of threads, so my threads would be about 0.0024 off over 4 turns. Would that risk damaging the spindle threads? What if I make the fly cutter body out of brass or aluminum so it deforms first?
Thanks!