South Bend Lathe Restoration, Part 14: Replacing worn out cross-slide thread

[@sky173]

Nice work. I'm considering the same thing for (all) my Atlas equipment. They are really starting to show it's age and it's time to get it done. Thanks for sharing.

[@KevinToppenberg]

It was a pretty good project, and not to hard for even my beginner skills. Best wishes!

[@anissawood4882]

Cartoon Kevin was my fave part. Thanks for skipping through the "boring maths" lol

[@KevinToppenberg]

There is a youtube video that I downloaded that has about 30 of those SpongeBob segments. I just scroll through to find what I need. No one ever misses that boring old math! Thanks for the comment! P.S. I just went back and looked at the video. That tiedye shirt is loud!

[@thumper4121]

I have never worked on a lathe that didn't have some backlash. Keep up the good work. I'm enjoying your progress and I don't have to get grease on my hands. lol

[@KevinToppenberg]

But, but, but ... I want it to be perfect! LOL! Thanks for the encouragement.

[@christinepryor5893]

I will never understand how you just seem to know how to restore this machine and its parts! Impressive. I liked your cool effect at the 1:30 mark to explain some previous work. I got tricked at one point because there was a lot of machine noise in the background at the maker space and I thought something in my house was buzzing- kept pausing to check! 😝 I hope you’re enjoying seeing your restoration through. =)

[@KevinToppenberg]

Thanks! I do a lot of research and watching other's videos. That's how I figure this stuff out. Thanks for watching. :-)

[@jonfranklin4583]

I am going to do the same thing on my 9" model A, looking forward to your nut video. Thanks!

[@KevinToppenberg]

I have the footage, I just need to get it all organized. Hopefully it will be out in the next week or so!

[@woodywoods5373]

Hello great video ,I had the same problem on my southbend 13 lathe with the slop (backlash) on my lead screw . I could either make a thicker brass washer that goes in-between the two metal washer and take up the slop there,but instead i redrilled another hole on a different spot on the coller that had slot machined into it if that makes sense.

[@KevinToppenberg]

It's been a bit since I dealt with all that. It seems that I ended up taking out backlash with the nut on the handle?? But your solution sounds good too. Thanks for watching!

[@MyLilMule]

I wanted to do this to mine, but at the time, didn't have the guts to do it, or a second lathe. Now that the maker space is back open, this might be something I will want to tackle again in the future.

[@KevinToppenberg]

It ended up being a bit easier than I had anticipated. But still there was lots of opportunity for disaster! FYI, I bought my replacement screws at www.roton.com (no affiliation). Their prices were good and prompt shipping.

[@tsmartin]

I always find it easier to drill, bore or ream a hole first and then fit the shaft to the hole. It's easier to file or grind an OD. As an FYI. I have a 1939 SB 13" x 60" that I've had since the mid 1970's.

[@KevinToppenberg]

Wow! That's awesome about your lathe. Any suggestions about fixing that slop coming from the handle end of the screw? And that is a good pointer about starting with the hole, and then matching OD. I'll do that next time.

[@rodm717]

Usually the graduated sleeve would be on in front of the handwheel and meant take up that slop. I noticed there wasnt one in between when you were testing. ??

[@KevinToppenberg]

I don't know. I think I put it back together the way I got it. I'll have to look at that next time I am in the shop. Thanks!

[@RobSkitmore]

OMG your crushing the thrust bearing. how can you do so much metal work. and not know what a thrust bearing is?

[@KevinToppenberg]

Well dang it, I hadn't considered that. This is a hobby, and I am learning as I go. I have tried to find drawings of this part, esp with any clues of how to take it apart. I haven't been able to find any, but if I had they might have shown me the internals. It does seem to still turn OK, so perhaps I didn't really cause permanent damage. Thanks for the pointer!

[@RobSkitmore]

@@KevinToppenberg I have a Southbend 9 model b which I'm not using. so after watching your video, I grabbed the compound slide from that machine; and it's nothing at all like the one you have. Although it was even harder to take apart. I gave up, so not to damage it. Good luck with your restoration. I will be following it with interest.

[@RizwanAli-qm2gn]

Wa

[@KevinToppenberg]

Did some of your question get deleted?