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- Feb 2, 2017
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- 1,236
Toz,Quote from another forum: 'Lapping is a precision process where consumable, made-to-suit special tooling is required along with hours of careful work by a skilled hand. Hard maple makes an excellent lap but you'll need to make several as Cal states and be ready to adjust them according to progress.'
Lapping is probably not the right word for the procedure I am suggesting. But first I would use the new MT5 test bar with bearing blue to get a better reading on what the problem is. If the internal taper is already holding somewhat I would not want to give it an aggressive treatment.
The tool I visualize would contact the full length of the taper. Then add strips of self adhesive wet /dry SiCa paper in 2000 to 4000 grit. Give it a few light turns in the taper. Since there is probably very little to remove it would not take forever.
The idea is along the same lines as an MT5 cleaning tool but with a hardwood arbor and very fine sandpaper instead of felt strips.
KBC,KBC 50 TAPER SPINDLE WIPER,7-170-003,KBC Tools & Machinery
KBC,KBC 50 TAPER SPINDLE WIPER,7-170-003,KBC Tools & Machinerywww.kbctools.ca
This is pretty much the same as I was thinking last night. It seems like it could work well especially if I start with fine or extra fine mylar self-adhesive abrasives. I was thinking about starting with 600 grit, but it would be safer to start with 2000 and get coarser if necessary.
Since tapers as new are ground to maybe 400 grit finish, is having it too smooth an issue?
Evan