- Joined
- Feb 13, 2017
- Messages
- 2,138
The basic premise here is (was) a fairly common problem on the earlier versions of most of the smaller lathes. It is in no wise limited to the Jet It sounds like you crossed up metric and imperial threads trying to mount a newer type tool post. If I understand the damage correctly, the simplest solution is to replace the center post with the next larger size and drill/thread the top or compound slide to match. If the compound is disabled, perhaps the top slide is still usable by adding spacers.
I have a Grizzly G1550, an almost exact duplicate of the Jet. When I mounted the AXA tool holder, I had to make a special post for the tool holder to fit properly. That has improved over the years, the proper post being available now.
BTW, threading on such machines involves changing a couple of gears sometimes. Imperial threads are available when the 127 tooth gear is in place. Threading is otherwise a piece of cake, just make very light passes.
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I have a Grizzly G1550, an almost exact duplicate of the Jet. When I mounted the AXA tool holder, I had to make a special post for the tool holder to fit properly. That has improved over the years, the proper post being available now.
BTW, threading on such machines involves changing a couple of gears sometimes. Imperial threads are available when the 127 tooth gear is in place. Threading is otherwise a piece of cake, just make very light passes.
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