How to make acme threads on a lathe | Clausing Lathe Crossslide Leadscrew 5900

How to make a Leadscrew for a Clausing 5900 series lathe. This project was for a viewer, his was in very rough shape. This leadscrew is for the cross slide. The nut was purchased on ebay.
The material I used for this leadscrew is Pre-Hard 4130, 3/4" diameter.
🎯Check the video on the making a leadscrew for a Clausing 6900 series lathe: • How To Make a Lathe Cr...
🎯Check out other videos on shafts builds and repairs: • Shaft Making & Repairs...
Threading tool Holder: www.shars.com/...
Insert: www.mscdirect....
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[@pierresgarage2687]

A well stuffed machine shop is like a miracle making machine, nothing or almost nothing that can't be made or repaired there... 🙂🙂🙂👍

[@RRINTHESHOP]

Oh yes. This came out great.

[@nuxboxen]

Hey I found a new channel that doesn't suck.... Great job on this video Mr. RR

[@RRINTHESHOP]

Thank you. I try.

[@paulgreenlee190]

Great video Sir. I cut some ACME threads a couple of days ago but did not set the compound to 14.5* and went straight in with the Cross Feed. Found out it works either way using the Compound or the Cross Feed. I learned a lot from watching your video. Thanks.

[@RRINTHESHOP]

Good deal Paul. Thnaks.

[@raymondhorvatin1050]

Randy I finally got the lathe going not as bad off as your Clausing but it seemed like forever before it was cleaned up the lead screw you made works like a charm thank you

[@RRINTHESHOP]

Great.

[@grntitan1]

Wish I knew ahead of time you were going to make this for a customer. I have a 5912 model that could use a new screw. I would have paid for one too while you were all set up. Great content Randy.

[@RRINTHESHOP]

email sent. Thanks.

[@MaturePatriot]

I remembered the previous one. Great work, as usual. My Taiwanese ENCO lathe has some screw holes that were obviously hand drilled, and are a good 10 degrees off. LOL Was going to cut my own new lead screw and nut, but my lathe had way too much backlash for any accuracy, so I bought a paired set.

[@RRINTHESHOP]

Thanks Vernon.

[@CraigLYoung]

Good afternoon Randy! I was just about to go to bed when this popped up. What the hey, I'm off tomorrow. It must be Acme Friday, last night I had our Mechanist make one to repair a machine, this morning Keith made one and now you,

[@RRINTHESHOP]

Yes I saw that, not planned. Thanks Craig.

[@ScoutCrafter]

Great idea using the tapered pin! Great job Randy!

[@RRINTHESHOP]

Thank you Scout. Worked out great.

[@JourneymanRandy]

Randy I could smell burnt rubber at 35:42. Very nicely done. I hope to do some acme threading myself. I'm buried in paperwork for now. Take care.

[@RRINTHESHOP]

The Brakes went on. Thanks Randy

[@jasonburns1407]

Watching this makes me want to cut some threads so satisfying . Great job randy

[@RRINTHESHOP]

Thanks 👍Jason. I love cutting threads.

[@billdlv]

Nice job Randy, lead screw turned out great and I like your taper pin solution.

[@RRINTHESHOP]

Thanks Bill, Worked out great.

[@swanvalleymachineshop]

Nice job Randy . I just ordered a set of pin gauges up to 1/2 '' , like you say handy things to have . Cheers .

[@RRINTHESHOP]

Yep great to have. Thanks Max.

[@hilltopmachineworks2131]

I use mine pin gauges all the time. They go up to 1".

[@chuirios365]

Hey Randy, I wish I had known you were going to make one cause I need one for my Clausing. Wait I just checked the model #, and it's a 6315. But if anything I after watching this video I can make it, thanks, buddy! Great video.

[@RRINTHESHOP]

I made one for the 6309 I had. It was the same as this one just a bit longer. I think I made a drawing of it. I will find it and send to you. Thanks Chui.

[@OldIronMachineWorks]

Randy, A little late getting to your video but enjoyed very much. Thanks for sharing. Gary

[@RRINTHESHOP]

Thanks Gary. Well I will let it go this time.

[@josephmagedanz4070]

Nice project, Randy. Thanks for sharing. Good idea with the taper pin. That should be a fine modification. Nice editing, too. Everything flowed very smooth and nice.

[@RRINTHESHOP]

Thank you Joe. I think it will hold up.

[@bcbloc02]

I hope you reamed it so the side with the worst alignment wound up as the big end! Looks like it all turned out great.

[@CraigLYoung]

bcbloc02: Good Afternoon Brian!

[@RRINTHESHOP]

Yep I did. Thanks Brian.

[@tomeyssen9674]

Mannnnnn.....that looked really good. Great job with the taper pins too. After your last job I had to go get some. I'm needing to redo my tail stock lead screw pretty soon.

[@RRINTHESHOP]

Good to have some in the shop very handy items. thanks tom.

[@AlmostMachining]

Awesome. Great job! Really liked the continuous flow of the process.

[@RRINTHESHOP]

Thanks so much!

[@delstone1919]

Very interesting Randy. I have an old Clausing lathe, not sure what series but circa '40's or early 50's, and I have that job to do myself before long.

[@RRINTHESHOP]

Not to bad to do.

[@johnambler3107]

Nice work on the leadscrew Randy 👍

[@RRINTHESHOP]

Thanks John.

[@JamesDedmon]

Awesome work, great recovery using a tapered pin

[@RRINTHESHOP]

Worked out, Thanks James.

[@ericrichards5862]

Hi Randy, Thanks for the great project video and good to see you using that tool holder oh and my thoughts of using a taper pin at the beginning of the video must have migrated all the way to your shop and into your head!! Nice job.

[@RRINTHESHOP]

Thanks for the idea! tool holder is great. Thanks Eric.

[@nikond90ful1]

Thanks for the video Randy.

[@RRINTHESHOP]

Thank you Colin.

[@NikColyerMachineWorks]

Good Job, great project. You got those camera angles perfect.

[@RRINTHESHOP]

Thank you very much Nic.

[@iancraig1951]

A project well thought out with good craftmanship..Thumbs up from me--very enjoyable..

[@RRINTHESHOP]

Glad you enjoyed it. Thanks Ian.

[@RagsdaleCreek]

You did a great job Randy. Just OEM grade.

[@RRINTHESHOP]

Thank you Anthony.

[@joeduda8507]

Very nice job and informative

[@RRINTHESHOP]

Thank you Joseph.

[@shawnmrfixitlee6478]

great job Randy , I somehow missed this vid !! ENJOYED

[@RRINTHESHOP]

Glad you enjoyed it

[@joandar1]

Good video Randy, enjoyed and you ultimately heard my shouts, secure it with a taper pin. lol. That would have been my choice as well. Thumbs up from John, Australia.

[@RRINTHESHOP]

Good call. Thanks.

[@kimber1958]

Thank you for the Einstein quote. I am an anomalous subscriber and loving it

[@RRINTHESHOP]

Wonderful! Thank you.

[@outsidescrewball]

Great video...discussion/demonstration/build .....machine will be like new

[@RRINTHESHOP]

Thanks chuck.

[@pgs8597]

G’day Randy, great job the tapered pin looks like a good repair. Cheers Peter

[@RRINTHESHOP]

Thanks 👍

[@rodneykiemele4721]

Now that was a great video, Thank You Randy.

[@RRINTHESHOP]

Thank you.

[@Throughthebulkhead]

Nice work Randy

[@RRINTHESHOP]

Thanks 👍

[@woodscreekworkshop9939]

Beautiful, just beautiful 👍🏼

[@RRINTHESHOP]

Thanks Yuchol. Get well soon.

[@xmachine7003]

Excellent work sir. A side note: could you leave the collar if the gear longer and set the shoulder of the shaft back to coincide with the collar? Reason: I think leaving the collar longer and shaft set back would allow a much thicker web for the new taper pin area. More collar would be less chance for the pin to wallow out at a later time,like the old gear and shaft arrangement? I saw that,thought I would ask. Not a criticism,merely an observation and thought. Chuck.

[@RRINTHESHOP]

Possible, but I would need to look at the machine and see the fitup.

[@joeziegler9054]

Great video sir. Nice work on that tapered pin. I scrolled down through the comments and didn't see where one person noticed that you were turning that hand reamer backwards! I do believe this is a left handed spiral flute reamer. Just for shits and giggles sir no disrespect intended. Keep up the great work Randy! I really enjoy your channel and have purchased your T-shirts.

[@RRINTHESHOP]

Joe. No disrespect taken. I was not turning it backwards. Taper pin spiral flute reamers are fluted this way with the cutting edge so that RH rotation is cutting.

[@joeziegler9054]

@@RRINTHESHOP Hey Randy my bad sir! I guess I should have ask that in question form instead of making an assumption. Thanks for responding sir and keep the great content coming.

[@American_Made]

I'm sure you know you need a new feed screw too. Wow, that things got some wobble. Bet it happened when it was moved. I've seen that wobble impart movement in the saddle in a couple other videos by others.

[@RRINTHESHOP]

Yep I do. thanks.

[@jimdean294]

What's funny about this, is in 20, 30 years someone will be saying the same damn thing about your tapered "hole" Nice work.

[@RRINTHESHOP]

Probably, I won't be around.

[@metalworksmachineshop]

Impressive as always. 👍🏆

[@RRINTHESHOP]

Thanks Doug.

[@lindabergquist4608]

HI Randy, I was wondering if you thought about rotating the entire assembly 90 degrees and drill a new hole back slightly on the gear? Rich

[@RRINTHESHOP]

Yep Thanks Linda.

[@AmateurRedneckWorkshop]

Lookin good there it is Randy Richard right.

[@RRINTHESHOP]

Thank you Harold.

[@ducatista1098s]

That's some mustache, Randy

[@RRINTHESHOP]

Thanks.

[@JB-kw4ug]

Beautiful job Randy. Did you grind a regular 60 degree carbide threading insert to acme shape or was that a commercial sold inset? If so where did you find one. Thanks for the video, JB San Diego

[@RRINTHESHOP]

MSC.

[@TraditionalToolworks]

Looks good!👍

[@RRINTHESHOP]

Thanks Alan.

[@MCEngineeringInc]

Nice work 👍🏻

[@RRINTHESHOP]

Thanks MC.

[@radenscreationsandrestorations]

Nice work Randy! I probably missed it in a previous video, but what's the story, or where did you get your magnetic DRO?

[@RRINTHESHOP]

I made it. Check out the playlist. kzbin.info/aero/PLkVYuSKafn3Gd2Z7OPlmA7glPuYKqCkHa Thanks.

[@donmittlestaedt1117]

Thanks Rangy

[@RRINTHESHOP]

Thank you.

[@douglasthompson2740]

Does each tpi have to have a specific insert? Or can some do multiple threads? Do you use a positive rake insert with that 4130 and less tool pressure to cut a uniform depth? Acme seems a subject that many give an overview but almost no in depth information. Thanks for the video.

[@RRINTHESHOP]

Yes the inserts are specific to the pitch. they are neutral rake inserts and holders. Using a follow rest is very helpful.

[@ilmondodimassi]

may I ask you what material did you use? (denomination). it seems very helpful to me. I have to do the same job

[@RRINTHESHOP]

I used 4140 Prehardened, ground rod. www.mscdirect.com/product/details/44861433

[@ilmondodimassi]

@@RRINTHESHOP it should be the equivalent of 42CrMo4 here in Europe. Thanks and congratulations for the work

[@waynep343]

what about when cutting a long piece to mount an thousands indicator like a follow rest with a wide foot to monitor deflection??

[@RRINTHESHOP]

Yes I think you could.

[@horacerumpole6912]

Nice job there-I have a 6300

[@RRINTHESHOP]

I had a 6309. Good machine.

[@timteasdale1125]

Hi Randy a question if you don't mind, what is the brand and number on the insert you used to cut the threads. Thanks

[@RRINTHESHOP]

Holder I use: www.shars.com/products/indexable-cutting/threading-holders/1-2-x-1-2-rh-indexable-cutting-tool-universal-external-threading-toolholder-1 Insert: www.mscdirect.com/product/details/88576772 Thanks Tim

[@timteasdale1125]

@@RRINTHESHOP Thank you for the info Randy!

[@rayjones5474]

What price to make cross slide screw and nut for boxford csb lathe please

[@RRINTHESHOP]

Ray email me [e-mail]

[@dasworkshop4967]

I would have cleaned the thread before the fit check...

[@RRINTHESHOP]

I did but I edit it out.

[@richardbradley961]

HI RANDY, HAD TO GIVE THIS ONE A MISS, THE AUDIO WAS NOTT GOOD, I NEEDED YOUR HEADPHONES !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! REGARDS R.

[@RRINTHESHOP]

Sorry.

[@shivshankar-dm5vv]

Randy Which design software you are use

[@RRINTHESHOP]

Fusion 360.

[@bstangeby]

Bruce Stangeby The content was quite good but the number of adds made it difficult to follow along.

[@RRINTHESHOP]

Ok

[@gwharton68]

Great video, lousy audio. Could hardly hear anything.

[@RRINTHESHOP]

Sorry about that

[@sylvaingervais247]

SALUT AVEC DU Loctite PLUS SOLIDE

[@RRINTHESHOP]

For sure, Thanks.

[@Rustinox]

You scared me at 35:45

[@RRINTHESHOP]

Yeah, had to wake you up. Thanks Rusty.

[@pgs8597]

Rusti should talk, doesn’t his video start with a loud screech

[@RRINTHESHOP]

Yep his are kind of loud.

[@paulcopeland9035]

Perfect. Nothing more to say!

[@RRINTHESHOP]

Thank you Paul,, Perfect is good.