Seeking Advice on lead screw repair in Rochester NY

L Vanice said:

I have done that repair about six times on Hardinge lathe feed screws. I silver braze the new part into the drilled hole in the old screw, which I think is a better choice than any sort of welding.

Be aware that the screw ends get broken during an accidental bending/dropping event, so the remaining end of the screw that goes through the support bearing will probably be bent. On my screws, I was able to straighten that portion of the screw before drilling the hole.

If done carefully, the repair will be as good as a new part.

Larry

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richard newman said:

These guys do SERIOUS machine rebuilding in Rochester. Your job might be too small for them, but maybe they could recommend someone.

Machine Tool Research, Inc. | Machine Tool Rebuilders

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apache1649 said:

Hey all, I'm brand new to machining and recently acquired a mill with a broken lead screw. Luckily, it's not broken in the threaded area. I've been looking around for a machine shop to repair it, but I don't know much about the shops in my area and I don't want to take it somewhere that's going to charge me way too much or do a poor job. Basically, I need the end of it cut off, a hole bored in it, then a new piece stuck in the hole and welded, then turned back down to size, and a key way cut in the new end. If anyone in the Rochester, NY area could point me to a good shop, or if anyone can give me a range of prices to expect to have the job done, that would be super helpful. Hope everyone is having a good day, thanks in advance to anyone who responds to this!

- Nick

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digger doug said:

Is this a standard Bridgeport or similar copy ?

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richard newman said:

These guys do SERIOUS machine rebuilding in Rochester. Your job might be too small for them, but maybe they could recommend someone.

Machine Tool Research, Inc. | Machine Tool Rebuilders

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pavt said:

I'm in Niagara Falls. If you can send both pcs to me, I can fix it for you. It's very similar to the stuff I do on my day job. Figure sending it in the mail is gonna be cheaper than the gas to drive to and from Rochester. I'm a pro welder/fabricator who happens to own a lathe.... could possible save the original end it looks like. All that it'll cost you is the shipping both ways, and waiting a bit.

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pavt said:

I'm in Niagara Falls. If you can send both pcs to me, I can fix it for you. It's very similar to the stuff I do on my day job. Figure sending it in the mail is gonna be cheaper than the gas to drive to and from Rochester. I'm a pro welder/fabricator who happens to own a lathe.... could possible save the original end it looks like. All that it'll cost you is the shipping both ways, and waiting a bit.

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Euclidean said:

Send it with some tracking or use a courier. Mail around Western New York is having a little trouble right now.

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pavt said:

Yep, that's a good idea to use tracking in a mailing tube or something. Mail is indeed a bit flaky lately. I ordered something from Chicago a while back, it got as far as the Buffalo PO and they bumped it to.... Oklahoma! Three weeks later, my wrench arrived....

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