- Joined
- Nov 28, 2016
- Messages
- 2,344
This morning I put the second coat of paint on the tailstock casting and the compound. While the paint is drying, I began working on the tailstock quill.
The quill came originally bored for a #2½ morse taper... of course, you can no longer get tooling that fits a #2½ MT... or not that I have been able to find.
Most of these old Hendeys eventually get bored out to a #3 MT... I decided that was the best plan.
I set the quill up in the South Bend and very carefully indicated it on center, then set the compound to the correct angle and began boring...
I had to machine about ¾ of the taper, then move the bar inside the hole and cut the remainder... my compound doesn't have enough travel to do the full taper in one setup. A taper attachment would have been wonderful for this, but I don't have one.
After machining...
A #3 MT fits tight now... I also took a skim cut (.010") on the face of the quill to clean up 100 years of dings and galling. I got a very decent finish in the bore...
Not perfect, but a lot better than I thought it would be.
Now I can use the live centers and drill chucks that I already have for the South Bend.
-Bear
The quill came originally bored for a #2½ morse taper... of course, you can no longer get tooling that fits a #2½ MT... or not that I have been able to find.
Most of these old Hendeys eventually get bored out to a #3 MT... I decided that was the best plan.
I set the quill up in the South Bend and very carefully indicated it on center, then set the compound to the correct angle and began boring...
I had to machine about ¾ of the taper, then move the bar inside the hole and cut the remainder... my compound doesn't have enough travel to do the full taper in one setup. A taper attachment would have been wonderful for this, but I don't have one.
After machining...
A #3 MT fits tight now... I also took a skim cut (.010") on the face of the quill to clean up 100 years of dings and galling. I got a very decent finish in the bore...
Not perfect, but a lot better than I thought it would be.
Now I can use the live centers and drill chucks that I already have for the South Bend.
-Bear