Well well, I must revise what I had said a few weeks ago about the Birmingham lathe I bought. I thought it was half decent, but it is officialy a piece of crap. I was cutting a 7/16 coarse thread at 300rpm, the split nut lever didn't disengage for some reason. So when I saw that it wasn't stopping I grabbed the carriage lever to crank it back ( as if that would do anything, just a reflex I guess ) but I also switched the lathe in reverse, all within a second and that stopped the lathe just before the tool post was to hit the chuck. That would have been even worse.

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I managed to get the split nut lever to move pulling on it like I was trying to lift the whole lathe. So I try to move the carriage, its all jammed up. Humm, yank harder and it moves for a bit and gets tight again. Well 3 teeths on the rack that is used to move the carriage have stripped, the gear inside the carriage that engages with the rack has twisted and has 2 or 3 very bent teeths onto it. And who knows what else there might be screwed up in there.

Tomorow I'll call the place I bought it from, see what the say. Hopefully they'll take it back. I want to get rid of it, but I also don't want to pass it on to someone else who would also only be mad at it. This lathe is supposed to have been made in Taiwan. Anyhow, it defenatly isn't worth the money. If I manage to get some money back from this, I'll get a real lathe.

The head (piece that the chuck mounts too)is true to 0.001', but the chuck is out by 0.006'. I disassembled the chuck, cleaned it, and put it back together IAW the owner's manual. The only problem is that the dowels that the cams lock into on the chuck aren't exaclty on the same plane. I think that this is the problem. Any tips on checking the chuck? I do apologize for hijacking the forum. I can begin a new thread if desired.

I just figured that the Chinesium lathe questions would get more attention under this thread title. Just a little update. The model I have is the CT-1440G. I took the whole carriage apart, feed rods, lead screw and all. The shaft that rides onto the rack to move the carriage had bent by almost.125'.

Which is part of what caused it to jam up so bad. I just held it in the chuck and took a long pipe to it and messed until it was straight again. Download Do Cd Tribo Da Periferia 2013.

It doesn't bind up anymore. I welded up the bent teeths on the rack and remachined them.

It practicly doesn't even show that anything happened. I took the occasion to fix the carriage lock which was no good at all. Now it works perfect. I checked the possibility of the feed lever engaging when the half-nut is engaged and it can't. Something else happened.