Next project: Craftsman 101.07301 6" lathe

When I adjust the gear train I use a strip of paper where the two gear mesh and tighten it down. Only play I see and hear is the forward/reverse gears. They wobble a bit on the holding bolts but is still acceptable from a noise standpoint. My lather really runs quite including expected noise from the back gear which I bought new.!

Also I have no slop in either the cross slide or compound slide. Gibb screw are set well.
 
Discovered, after making a 1" ID collar for the spindle, that it does not require one. If putting a collar next to the bull gear you can't install the woodruff key on the spindle. The woodruff key, along with the set screw, locks in place the bull gear. Due to lack of tech data and online searching results, which revealed nothing, I wasted time on that other than first real use of my little lathe.
Some useless pics to keep it interesting.
 

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The problem with any of the variants of "zero backlash" nuts is that if there is backlash due to screw wear, you must adjust the nut in an area of the screw where there is no wear and live with the backlash where there is screw wear. Adjusting it in the worn area will result in the screw locking up when you get into the un-worn area on the screw. My suggestion would be to replace the nut and live with the back lash in the area where the screw is worn. Proper technique which you should learn anyway will eliminate machining errors due to screw wear.
 
Sounds like you are going along pretty good . Here is a web site that I like to keep in my bookmarks , comes in handy for me when I'm working on the head stock . http://www.deansphotographica.com/machining/atlas/spindle/spindle.html
Also if you decide to get a new Acme cross slide nut there is a guy that makes them and sells them on the Bay . Check out the part in his ad where he talks about identifying your lead screw (that was because of me , ah hem) . https://www.ebay.com/itm/192872253990?hash=item2ce8150a26:g:AisAAOSwjt5afOkD
Mark .
 
I guess I can say that this renovation is now finished. I will open any new posts of new issues or mods. The machine is quiet, cross and compound slides are tolerable and am satisfied with the way the whole late works. Now only issue is getting some change gears, which I just ordered 3D printed ones. I thought that I had change gears for this lathe but after checking them they don't fit. I have two sets and I know one is for a Chinese "Shop Task" lathe and I don't know what the other set fits. These are the gears that came with the lathe. Two of the gears are 64-T and the others I'm not sure.

Thanks for everyone's help and suggestions!
 

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If the gears are too large for the machine and the largest two are 64T, they may be the gear set for the Atlas 10" and 12". In which case they are quite tradable.
 
If the gears are too large for the machine and the largest two are 64T, they may be the gear set for the Atlas 10" and 12". In which case they are quite tradable.
 

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I'm not sure what the photos are intended to show up. All of the gears in the photos show gears that are correct for any of the eight 6" lathes that Atlas built for themselves or for Sears. The complete set of gears for all of the Atlas built 6" lathes consists of 14 gears with 20 through 64 teeth plus two M6-165 Spacers.
 
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