- Joined
- Sep 25, 2018
- Messages
- 33
I’ve posted here before about my 6560. It’s currently the oldest known 6560 to still be kicking around, at least according to the official Logan list.
Anyhow, my lathe was severely abused by the previous owners. I’ve slowly done repair and restoration work to the machine as I’ve had time. I also use the machine in a professional setting at my shop.
One intermittent problem I’ve had is the tailstock quill sometimes won’t hold the MT3 taper firmly. It sometimes will spin tooling in the tailstock. The inside of the quill looked very beat up. There was also a large ridge on the face of the quill that needed to be stoned off.
I purchased an MT3 reamer set online. Unfortunately the quality wasn’t the best. I decided not to use the roughing reamer because the quality was questionable.
I began by putting Dykem in the quill and making a very light cut with the reamer. I discovered what I had feared - it barely made contact. There was a small section half way down the taper that contacted, as well as the far back of the taper.
This confirmed my fear because the tooling I have that had spun showed a slight mark on the shank right where the reamer had contacted.
I slowly took more cuts with the reamer and continued to check my work. I stopped before the entire thing cleaned because I was concerned about enlarging the opening of the quill too much.
I’m left with probably 80% contact area, which is a major improvement.
Time will tell how much it solves the problem of tooling slipping the taper.
I recorded the process if you’re interested in seeing it.
How to Ream a Lathe Tailstock - Repairing Morse Taper
Sent from my iPhone using Tapatalk
Anyhow, my lathe was severely abused by the previous owners. I’ve slowly done repair and restoration work to the machine as I’ve had time. I also use the machine in a professional setting at my shop.
One intermittent problem I’ve had is the tailstock quill sometimes won’t hold the MT3 taper firmly. It sometimes will spin tooling in the tailstock. The inside of the quill looked very beat up. There was also a large ridge on the face of the quill that needed to be stoned off.
I purchased an MT3 reamer set online. Unfortunately the quality wasn’t the best. I decided not to use the roughing reamer because the quality was questionable.
I began by putting Dykem in the quill and making a very light cut with the reamer. I discovered what I had feared - it barely made contact. There was a small section half way down the taper that contacted, as well as the far back of the taper.
This confirmed my fear because the tooling I have that had spun showed a slight mark on the shank right where the reamer had contacted.
I slowly took more cuts with the reamer and continued to check my work. I stopped before the entire thing cleaned because I was concerned about enlarging the opening of the quill too much.
I’m left with probably 80% contact area, which is a major improvement.
Time will tell how much it solves the problem of tooling slipping the taper.
I recorded the process if you’re interested in seeing it.
How to Ream a Lathe Tailstock - Repairing Morse Taper
Sent from my iPhone using Tapatalk