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Old 05-01-2019, 11:51 AM
midmosandblasting's Avatar
midmosandblasting midmosandblasting is offline
Blast this!
Join Date: Oct 2005
Location: Calhoun ,Mo
Posts: 8,011

Order your Acme screw then machine the collar ,press and silver solder . That is how we always replaced ball screws on our CNC vertical lathes .We kept the ball screw raw in stock . 5-6 hours later back making chips .
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Old 05-01-2019, 04:09 PM
digr's Avatar
digr digr is offline
The Real Deal
Join Date: Apr 2005
Location: Duluth MN
Posts: 8,193

Some of the old vises had square threads.
Drawing by Smartdraw
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Old 05-01-2019, 04:45 PM
4gsr 4gsr is offline
Join Date: May 2018
Location: Victoria, TX
Posts: 123

Originally Posted by digr View Post
Some of the old vises had square threads.
If the Acme threaded screw will go in, go for it! The vise don't care. I'm sure the old square thread form has formed into something between square and Acme by now.

Now, if you want to chase the thread in the vise body into a uniform thread and make a screw to match it, go for it!
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Old 05-01-2019, 05:43 PM
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OldRedFord OldRedFord is offline
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Join Date: Mar 2005
Location: Hull GA
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My thought was to machine it from one piece. Reason being I know a little lathe work but I've never cut threads before. Ever. Also why I looked at going with 12L14 because it would be easier to machine and cut Acme threads for a noob.
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Old 05-01-2019, 11:26 PM
Don_S Don_S is offline
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Join Date: Mar 2005
Location: Tenville, IA
Posts: 532

1144 stress-proof is another option for a vice screw.

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Old 05-02-2019, 05:58 AM
digger doug's Avatar
digger doug digger doug is offline
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Join Date: Jan 2008
Location: NW Pa
Posts: 11,831

Buy square get more for your money that way....
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