John Mulhern
Aluminum
- Joined
- Sep 7, 2004
- Location
- Riverside, Calif.
Hiya!
13” swing Clausing Colchester Master lathe made 1956 in England. No quick change gear box. Previous owner set it up for fine feed. No spare change gears until recently when I found a 60 tooth gear. This is my lathe in my garage & I love it.
The problem: I’d really like to thread on this lathe, but my first attempt at 20TPI came out 60TPI as shown on the optical comparator. I doubt it’s ever been set up to cut threads. The thread dial gear was upside down & not engaging the lead screw. Odd.
Ill try to include pics of the thread chart & the previous gear arrangement for when it was set up for fine feed.
I’m using the 30-60-100 pattern now, with no intermediate small gear next to the 60 tooth middle one.
Any ideas?
13” swing Clausing Colchester Master lathe made 1956 in England. No quick change gear box. Previous owner set it up for fine feed. No spare change gears until recently when I found a 60 tooth gear. This is my lathe in my garage & I love it.
The problem: I’d really like to thread on this lathe, but my first attempt at 20TPI came out 60TPI as shown on the optical comparator. I doubt it’s ever been set up to cut threads. The thread dial gear was upside down & not engaging the lead screw. Odd.
Ill try to include pics of the thread chart & the previous gear arrangement for when it was set up for fine feed.
I’m using the 30-60-100 pattern now, with no intermediate small gear next to the 60 tooth middle one.
Any ideas?