- Joined
- Dec 3, 2013
- Messages
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Lets try a couple ideas.
I hope this helps in some insane way
On the carriage are you getting plenty of oil on the bed ways between the carriage and the bed? think of the oil as millions of tiny ball bearings, it will help the carriage slide without causing friction/drag that can effect carriage movement and the cut finish.
Now for the half nut.
That is what I needed to see. looking at the manual and the half nut and wear on it, it appears that the halfnut rest in a cradle and held in place with a pin and that assembly possibly threads on to the half nut lever shaft? if so you should be able to adjust the halfnut assembly closer to or away from the lead screw, does that make sense or am I out in left field? the halfnut thread wear appears to be primarily on the outside of the thread if so I am thing that the halfnut needs to be closer to the lead screw.
I was thinking the same thing. Looks like the half nut is not fully engaging the lead screw or the lead screw is deflecting some under load.
Also check the lead screw threads along the key-way cut for sharp edges and burrs.