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Good info, thanks again for your help, I will do as you suggest, probably in the weekend.
Cheers.

I measured the lead screw and it is 3 mm pitch, the threading dial also has 3 gears as you say. First thing I will do is pull the cover off the gearbox and check everything is ok in there and the...

I'm glad you are better at maths then me!, yes, I used the AL335 chart before, I will try the AL346v manual and see what happens.
Will keep you posted, cheers. I will check that leadscrew again to...

I think I will remove cover this weekend and check gears out. See more photo in my album.

Lead screw still rotates in 111 position, the al330-a model is from the limited owners manual I got with the machine. Manual is very brief and isn't much help at all. Herbert was the agent at the...

Thanks, I will try and download some more pictures with detail. Like i said, feels like i have the only lathe like this in the world!, it was cheap at the time and i think i know why.

I will check out those points , I have posted a photo on my album, hopefully you can see, still getting used to using this forum. Back to work tomorrow so will try to post updates during the week,...

Nothing in the manual but I have measured it, seems to be 8 tpi, does that sound right?, I will take some photos and post them, cheers for your help.
There is a photo of lathe on my album.

Tried out the 20 tpi thread, but still no good, seems to be machining too fine, 26 tpi on A4 combination with 48 Z gear. Tried other combinations but all too fine tpi.
Must be a big difference...

Yeah, kick myself for losing the chart, moved house , had it mounted on the wall above the lathe, and lost it in the move. Will reply tomorrow. Cheers.

Thanks, I will give that a try tomorrow, i have had the lathe since new, it never had a 38 gear, not to say that it was missing from new,
Will post how it goes tomorrow., need to cut 20 tpi thread.

Yes, seen that model, but is different from mine, gear change is from 1 to 5 and A to E.
Change gears I have are, 22, 24, 26, 44, 48 and 52. Feel like I have the only lathe like this in existence!,...

Hi, I have lost the threading chart for my AL330A lathe, 2003 model, serial no 4473, model no. CQ6230D, can anybody help please,