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new machine new hobby

 

Hi all I hope this works... I bought an atlas tv 42 lathe and im in the process of cleaning it up and replacing bits that are either missing or wrong.?
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my list of requirements so far is
the gib screws and nuts for pretty much all the relevant places
all the springs and ball bearings for the detent mechanisms
for some reason the rack that the saddle moves up and down on has been moved 3/8" towards the headstock
lastly someone has snuck a 35" leadscrew in
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broadly mr bodge and bugger it have been at it if anyone can let me know the relevant sizes of threads etc i would appreciate it
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many thanks
 

Cross slide (Compound Rest) Gib screws are 1/4-28 x 25/32 headless set screw, dog point
Tool Rest Gib screws are #10-32 x 7/8 headless set screw, dog point
Carriage Gib Screws are 1/4-28 x 7/8 headless set screw, dog point
All detent balls are 3/16" diam. The springs are all the same, 3/16 dia (I measured one that's a little under at .185) ?x ?.375 long, wire dia .027
All should be available from McMaster-Carr (McMaster.com)
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Raymond
 

wow thanks for that its greatly appreciated
many thanks
Ben
 

Regarding detent balls and springs—

Your local bicycle shop can sell you a 3/16" ball for a few pennies. This is the size used in front wheel hubs, usually 10 per side. Though nice bikes went away from loose-ball parts years ago in favor of industry-standard, precision, annular bearings, there are many millions of bikes on the road using 5/32", 3/16", and 1/4" balls and every shop has some dead parts you can harvest them from.

I've had good luck going to the Ace Hardware across the street for springs and screws from the Hillman assortments. You get a few generic, cup-point set screws and practice altering the points. They're easily turned or filed (I have a Unimat for this kind of stuff).

Tim

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