earlyrider
04-23-2010, 12:46 AM
After loading the cutting bit, and entering, the CM spins the bit and moves to the keyboard side to do its touch. Even after cleaning out the CM and replacing the brushes, the CM seems to take a long time to get to speed, and is still spinning (though not under power) when it touches down. I've repaired the hole several times.
Question 1: Is there anything that I might be able to repair/replace to solve the CM runup problem(?)?
Question 2: Should I continue to repair the hole? I can mount a polished garnet or ruby in the hole, flush to the normal surface to serve as a non-abrasive and drillproof touchspot for the cutting bit. Any ideas?
After the "touchoff", the machine functions normally.
At the time of the CM cleaning, I replaced the magnet end bearing with a new one (exactly the same), but not the other (didn't have that one in hand). The new bearing spun right, but the other seemed to spin as if it were dry (don't know if I should have added grease or not). No hint of heat damage. Planning to replace this one as soon as possible. Could that cause enough drag to affect the spinup?
Thanks for all suggestions.
Ron
Question 1: Is there anything that I might be able to repair/replace to solve the CM runup problem(?)?
Question 2: Should I continue to repair the hole? I can mount a polished garnet or ruby in the hole, flush to the normal surface to serve as a non-abrasive and drillproof touchspot for the cutting bit. Any ideas?
After the "touchoff", the machine functions normally.
At the time of the CM cleaning, I replaced the magnet end bearing with a new one (exactly the same), but not the other (didn't have that one in hand). The new bearing spun right, but the other seemed to spin as if it were dry (don't know if I should have added grease or not). No hint of heat damage. Planning to replace this one as soon as possible. Could that cause enough drag to affect the spinup?
Thanks for all suggestions.
Ron