How to cut a thread on a manual lathe (Intermediate method ideal for home workshop & hobby engineer)

Рет қаралды 1,265,532

4 жыл бұрын

How to cut threads on a lathe is a fundamental skill of any machine operator. This is an intermediate method that is ideal for most applications and lends itself perfectly to the home workshop and hobby engineer. Cutting threads on the lathe this way is both fast and low risk. The basic way to cut threads on a lathe is very slow. The more advanced way to cut threads on the lathe is a little more risky and you are more likely to make a mistake. It's not hard and i'm sure you are more than capable, there is just more to do and therefore more opportunities to make a mistake. I think this method of cutting threads on the lathe is a good compromise between the two. The beauty of cutting threads on a lathe using this method is it is very versatile. If you need to stop thread cutting and do another operation you can just come back to it and the tool with pick up where you left off. You can't to this with the basic method...
I was asked to make a new motorbike axle for a friends flat track motorbike. The axle is turned from S275 which is a steel with a yield strength of 275 MPa. It machines nicely and has good shock loading properties making it ideal for this application. The Axle consists of three diameters with an M14x1.5 thread on one end for a nut.
Here is a recap of the order of operations for cutting a thread on the lathe using this method.
First set up your part, tool, speeds and feeds.
Colour in the area you want to thread and do a scratch pass.
Check the scratch pass with a thread gauge.
Cut your threads.
Clean up with a file, emery paper, and scotchbrite.
For the actual thread cutting:
1) Wait for your number on the thread dial indicator
2) Then your number lines up, engage the half nuts.
3) The thread is cutting.
4) At the end of the thread, dis-engage the half nuts.
5) Withdraw the tool in the -X Direction. (+X if threading internally)
6) Move back in Z direction to your start point.
7) Put on your next cut and repeat until down to size.
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Cheers,
Rob
- Handmade Extreme -
Disclaimer: This video is meant for educational and entertainment purposes only. It is in no way meant to be a set of instructions and therefore no attempt should be made by any party to recreate what has been seen in this video. Any attempt to do so is done completely at your own risk.

Пікірлер: 381

@nathanhastings8293 4 ай бұрын

It is more imortant that you are taking the time to show someone how to do something . Good on ya mate

@andymodeller965 3 жыл бұрын

Nicely done sir. In the early 80's I was fortunate enough to have my employer fund a full 5 year mechanical engineering apprenticeship. This Brough back happy memories. Excellently and precisely explained.

@Handmadeextreme 3 жыл бұрын

Thank you. I'm glad you enjoyed it. I too was lucky to be in a similar situation where my employer at the time put me through college. On the job training or 'learn as you earn' is a great way to gain both knowledge and experience in my opinion.

@captsploof Жыл бұрын

I agree the method is right, but I would have loved him to javelin shown the method of using the compound rest at 29.5 degrees. That's the traditional way it was a taught and I feel it's easier to pick up a thread for repairing threads as well. However, great video with good explanation and the method isn't incorrect in anyway tbh.

@guyloren 3 жыл бұрын

Superb video mate,& demystified manual threading massively for me- been having to use retention screws instead of threaded parts on my hobby project due to lack of time to get trained up,& this has given me a mental grounding in the process to get started threading future builds.Brilliantly clear explanation- much obliged,sir!

@crystalgreco5699 3 жыл бұрын

This is the method I have learned on the manual lathes. and always used. I used to make spindles for axles on semi tractors and stuff. Then I went to school for CNC and was smitten. Thank you for explaining this so well

@Handmadeextreme 3 жыл бұрын

Your welcome. Glad you enjoyed it.

@jaspreetmatharu2741 Жыл бұрын

My father used to do a 14 feet long shaft with ease. I was about 11 or 12 years old maybe. He was a great turner. Passed away in 2012. Wish he was alive to teach me all this stuff.

@vigwelding926 3 жыл бұрын

You just earned a subscriber. Just started to look for a metal lathe and gathering some information on various techniques and this one is very concise. Excellent job !!!!

@brianjohnson217 3 жыл бұрын

That was a brilliant lesson on thread cutting. I'm a very keen hobbyist and self taught. Your lesson has taken away most of the scary stuff for me. Thank you very much

@Handmadeextreme 3 жыл бұрын

Glad it was helpful. Good luck with your own projects. 👍

@BLECHHAUS 2 жыл бұрын

That's how I learned it during my apprenticeship but we also rotate the toolpost. Very good tutorial!

@Rubbernecker 3 жыл бұрын

Excellent video!! I have seen dozens and dozens of videos of thread cutting. This one is by far the best and most well explained!

@Handmadeextreme 3 жыл бұрын

Thank you. Glad you enjoyed it.

@madeddiesman-stylemonsterm6662 2 жыл бұрын

Great instruction with perfect clarity. Thank you for sharing your insights via this video!

@PuchMaxi 8 ай бұрын

Very concise explanation, cheers!

@timothybird5565 2 жыл бұрын

Nice video for demonstrating cutting metric threads, may also add depending on what brand of lathe swapping gears to do metric or atandard threads. Ive been cutting threads on old school lathes for 35 years myself,over all great video

@timhofstetter5654 5 ай бұрын

That lathe is wicked upscale compared to either of my lathes.

@Barrybushski-ge3kf 7 ай бұрын

My two cents worth……..engaging and disengaging the half nut lever is only done when you are cutting very long threads. With most typical threads such as this you simply withdraw the tool quickly at the end of cut and put the machine into reverse to get back to your start.

@joeypolaris 2 ай бұрын

I agree. Where you disengage and engage the half nut, it doesn’t always go back exactly the same. Especially with an older lathe. You can easily cut the thread too deep or too wide usually when doing final cuts.

@dieseldog289 3 жыл бұрын

Great video mate! I came originally for the transit caliper rebuild but now I’m fascinated!! Cheers

@Handmadeextreme 3 жыл бұрын

Thank you for the support. Glad you are enjoying the channel.

@CaptainSwoop 3 жыл бұрын

Excellent, concise and honest presentation. No verbal diarrhea ... just tell it as it is. Well done ... thanks.

@Handmadeextreme 3 жыл бұрын

Your welcome, thank you. Glad you enjoyed it. 👍

@alsatian9130 3 жыл бұрын

Absolutely awesome vid! Much respect and gratitude from New York

@Handmadeextreme 3 жыл бұрын

Thanks, glad you enjoyed it.

@hearnjack 2 жыл бұрын

I don't have a lathe and I found this very interesting. Thank you

@r.c.daviesbooks1138 3 жыл бұрын

This is the way all 'how-to' videos ought to be made - concise, but still quite instructive. Very well done indeed - thank you!

@telluricscout 2 жыл бұрын

Always wondered how this was done. Thank you!

@smallcnclathes 3 жыл бұрын

Love your cnc X and Z axis references on a manual lathe.

@Handmadeextreme 3 жыл бұрын

Cheers, Glad you enjoyed it.

@OnionChang 3 жыл бұрын

Manual machines have the Axis as well

@tmcmellon 3 жыл бұрын

Flip the tool upside down, and start the tool from the chuck side and feed toward the tailstock and run the lathe in reverse. Learned this from the best toolmaker I have ever know who was from Germany. Many advantages, the most important is that the chips fall down out of the groove instead of bouncing around in the groove and ruining the finish. Running off the part at the end is more forgiving and gives you more time to disengage the half nut, therefore you can run the rpm higher for smaller diameters. And no, you won't cut a left hand thread this way.

@panzhubnikaz7335 2 жыл бұрын

Dude, you dont even know that you saved my sorry ass right now, thanks😁

@jesserawson898 2 жыл бұрын

A great method as long as the chuck doesn't unscrew and follow the chips into the chip tray. Make sure the chuck is locked onto the spindle thread. 🙂

@charleshartlaub3725 5 ай бұрын

This is also a better method for parting off.

@charleshartlaub3725 5 ай бұрын

But don't do this for any heavy turning op's as the force is not directed down into the machine.

@tonybetts467 2 жыл бұрын

Great video .. in my school days we did so much theory on how lathes worked and then never got to use one.. now I'm at an age I can maybe buy my own and learn.

@taxicamel 2 жыл бұрын

This is a good, thorough, tutorial covering ALL steps in setting up the machine. I would offer to immediate improvements to ending up with a better thread. The first being a faster spindle RPM. It appeared the RPM chosen was simply the slowest ...which is fine. But the problem is this cutting speed is in fact very slow ....on purpose. 1) A faster CS would automatically provide a better finish on the thread form. But this is up to the operator and their comfort zone with operating the half-nut disengagement only, for this one example. As determined and explained, for this thread pitch, any of the 8 engagements on the thread dial indicator will keep the pitch ...so there is no challenge factor in engaging ....and this engagement can be as far away from the thread start point aw the operator chooses. It is the "disengagement" that is the critical point ....but this is also dependent on how wide the relief is. Nothing wrong with practicing this technique. It just requires concentration. 2) The depth of cut chosen was very deep on the second pass. Considering the extremely low RPM, this resulted in extremely poor surface finish because the metal was literally tearing off the parent material ....and the surface finish looked awful. The depth extreme depth of cut can be taken, but it need NOT be that deep. As the final thread depth of cut is approached, the actual cutting depth should be reduced, simply because there is more material being removed at the deeper cuts. 3) And lastly, it is very common practice to run at least one "extra" pass after the last finish depth has been reached. Even though this bar is supported on a center, the bar material still deflects. There was a lot of tool pressure still on the last cut. A "cleanup" cut just makes sense to perform. It will literally always improve the thread surface finish as well .....which is what the female thread is going to be running on. There wasn't very much offered about "fitting" the thread and the testing of the nut did not reveal very much either nor was there any mention about the fit/class .....but considering this was only a tutorial using the cross-slide, ....enough said.

@retromechanicalengineer 4 жыл бұрын

Just subscribed, recommended by my brother Carl Wilson. That was as good an explanation as I've seen on KZfaq. I like to make the gutter to the thread depth, that way when it scratches the gutter it's a good indication that you are pretty much at full depth. Tipped tooling is great because it gives you an indication when you get to the flats anyway. Great video. Dean in Oxfordshire.

@Handmadeextreme 4 жыл бұрын

Ahh, another Wilson. Welcome to the channel it's great to have you here. I'm glad you enjoyed the video and thanks for the tip 👍

@old_guard2431 Жыл бұрын

Nicely done, sir. Excellent organization, camera work, sound and editing. It is one thing to know how to do the operation and entirely another to be able to communicate it effectively. One thing this illustrates is the difference between a shop lathe and a small lathe like a Sherline that may have the lead screw gearing to cut threads but lacks refinements such as the dial.

@yeseniajulloa8953 3 жыл бұрын

This is the method I learned in school, great job at making info more accessible.

@Handmadeextreme 3 жыл бұрын

Glad it was helpful! Thank you.

@T-warf52 3 жыл бұрын

Thank you I just bought a lathe without a compound slide, only a tool holder on the cross slide, I think I can cut threads with it now.

@jasonrad9332 2 жыл бұрын

Great video! I really appreciate the detail you used.

@derekcollins1972 3 жыл бұрын

Great explanation there that gets straight to the point.Well done.

@Handmadeextreme 3 жыл бұрын

Thank you.

@graemewhite5029 3 жыл бұрын

Just found your channel as I've upgraded to an M300 from a Myford and liked your RPC video. If you're just doing a simple "plunge cut" threading job and you have the nut handy for sizing, advance the top slide a couple of thou every cut, this mimics the angled top slide method and let's the tool cut primarily on its leading edge, reducing tip loading and generally provides a smoother finish to the threads.

@Handmadeextreme 3 жыл бұрын

Nice idea. I'll have to give that a try some time. Thanks for the support.

@ianmorris8534 4 жыл бұрын

Another great vid, thanks! now, I just need to work out a way to get a lathe up all those stairs into my flat :) Luckily, I've a great mate who lets me play around on his whenever I want, I just need to convince him he needs a mill, surface grinder and a shaper next, 👍

@Handmadeextreme 4 жыл бұрын

Hahaha better buy him a few bears. Glad you enjoyed it and thanks for the support.

@merlinch4256 Жыл бұрын

NIce lathe, good tooling, good job, good worker and excellent teacher. Thank you 😊

@PiefacePete46 2 ай бұрын

Many of your viewers (me, for instance), have less rigid lathes. If I try to plunge-cut a 1.5mm thread on my seventy year old Myford Super 7, I will end up with a lifetime supply of chatter marks! For lesser beings like us, the 29.5 degree compound slide method is our saviour! Sadly for me, my lathe is also short of its thread-cutting dial... My father bought the lathe when I was five years old, and gave it to me thirty years later, so I know it did not ever have a dial... might be a project for me. 😜 Great video, thank you. It did drive me la-la though; your voice is very familiar, but I could not figure out why! 🥴 As an afterthought... because the Myford has a clutch, I can make a cutting pass, disengage the clutch and withdraw the tool, then wind the carriage back using the handwheel on the leadscrew. This is actually a very quick process, and works great with the 29.5 degree compound, and no threading dial... it's also pretty foolproof. 😛

@noelj62 2 жыл бұрын

Comprehensive and clear. Thank you.

@thedreadedmushroom3012 3 жыл бұрын

Amazing tutorial, so informative, thank you!

@grahameblankley3813 3 жыл бұрын

Just found your video good quality all round & the lathe it speaks for its self, just subscribed, Coventry Uk 🇬🇧👍.

@Handmadeextreme 3 жыл бұрын

Welcome to the party, great to have you here. Glad you enjoyed the video and thanks for the support.

@zhiweima2865 3 жыл бұрын

When I started my apprenticeship, I was taught how to calculate the thread depth (using simple mathematics). The second thing I learned is that when you did the final cut and the nut fits perfectly, NEVER to use a file on the thread or "scotch brite". The thread should be smooth and shiny. In this video, you can see on the "chip" that there is chatter. However, a good tutorial for a beginner !

@spazzwazzle 2 жыл бұрын

Yeah, this video is pretty scary to watch. He's going way too slow to get a good finish and I don't understand why you wouldn't turn the compound to decrease chatter.

@serhiyranush4420 2 жыл бұрын

Could you share the info on how to calculate the thread depth?

@nealblackburn8628 Жыл бұрын

@@spazzwazzle he said that there are better ways to do the job ...but this is a fairly basic method with less chance to make mistakes... i am sure he could do if he wanted to

@willemscheepers3999 26 күн бұрын

Brilliant Video for learners.

@titofernandezmeirino9832 3 жыл бұрын

Excellent video, it's very well explained and filmed. Thank you so much to you.

@Handmadeextreme 3 жыл бұрын

Glad it was helpful!

@CafeRacerGarage 3 жыл бұрын

Dude that was awesome 👏 Thank you for sharing this

@Handmadeextreme 3 жыл бұрын

Glad you enjoyed it! Thanks.

@jimdrechsel3611 9 ай бұрын

Nice job explaining what can be a very complex procedure. Also for showing the importance for learning the parts of the lathe. I might suggest for some that one way to speed up the process and to get very good results for the thread cut depth is to rough the thread to a size close and then run a thread die cutter over the rough cut thread to finish cut. That way you will have started the threads nice and straight as a lead for the thread die. Use the thicker thread cutting oil for a nice finish too. We used to do this because even a slight distance off on your depth can cause major problems either too tight or loose. Too deep and you made scrap. If you’re experienced enough you can place the thread cutter in the holder and let handle rotate up against the carriage. Turn the lathe on slow and stop the machine just before finishing the cut. Let the handle follow the carriage. Finish by hand and reverse the lathe holding the die cutter handle. This allows a straight precise thread every time that works. Most people can’t cut threads by hand without going crooked so they cut a rough thread and finish by hand. Brought back memories and using the thread gauge rods to measure groove depth. Learning how to read and find the information in a source book is a lesson in itself! Thanks for sharing

@stevefrench2276 2 ай бұрын

Great video, thank you, what is also awesome is the tips from the "knowledge network" in the comments section, however, the way you explained this is great for beginners like me, get comfortable with the basics and throw in the all the tips below, JUST AWESOME... cheers.....

@britishreaction54 4 жыл бұрын

That was excellent, thanks, a very good explanation. That's my chosen method too. With inserts I think it's totally fine to go straight in with the cross slide and cut on both sides. These days I tend to keep the half nuts engaged, because I set my VFD up to have a fwd/rev switch for threading. I have programmed very fast deceleration times for the motor when run from that switch. It's a bit like having a clutch, as on the Harrison 140. I can stop dead, back the tool out and reverse the carriage. I need to make sure I cut a big enough drop out groove though, first! Thanks again, really enjoyed.

@Handmadeextreme 4 жыл бұрын

Cheers Carl, Great to hear from you again. Nice move with the VFD. Luckily I have a foot brake on mine if I need to stop it QUICK. Thanks again for the support. 👍

@britishreaction54 4 жыл бұрын

@@Handmadeextreme No problem. You have a great lathe. Very useful tool. I'm looking forward to the next video about the car too.

@crazylittlehacker9845 2 жыл бұрын

Im about to start working on one of those, i have basic knowledge but it would be great if you had a video explaining every feature of the machine

@kais7455 6 ай бұрын

This is great info! Thanks very much for the demo!!

@frozenwalkway 4 ай бұрын

i always wondered how threads were lathed, and i never imagined for some reason they are just built into the machinery, as a function even on a manual one lol. for some reason i thought i was gonna be some etcha sketch magic with 2 knobs for feeding and cutting or something lol thanks for the vid. still crazy the manual timing amazing

@madeljacky 2 жыл бұрын

Excellent video demonstrating basic thread screw cutting and very well explained how you go about it and why you do things the way you do. Only difference in the way I do it is I turn the compound slide around to half the angle of the thread im cutting so that the depth of cut increase on the compound slide is following along the back edge of the thread and the tool is only ever cutting on the front edge, gives a nicer finish but is slightly more complicated for the lathe operator. As always learn to get he job done first then you can improve your skills and methods as experience increases.

@BOBSYMACK 2 жыл бұрын

Thanks for showing great tutorial ,nice and simple

@BIGDADDY012341 3 жыл бұрын

Absolutely amazing video !!! Thanks for sharing and especially for throwing in the mistake because I make that mistake all the time !! Liked and subscribed

@Handmadeextreme 3 жыл бұрын

Glad you enjoyed it. Welcome to the channel.

@miguelquazar883 Жыл бұрын

Dude this is so great. I have always wondered how this worked. Because I have seen loads of videos where the camers is focused on the cut while threading but with no explaination. I just assumed the person using the machine practiced their timing enough that they were just that good. I am not ignorant enough to assume it was like mastering an "etch a sketch". But my interest lead me here because I want to know. I wish I could meet someone that could traim me to use a lathe. I would learn for free in exchange to benfit the master on my spare time. This is some of the most interesting stuff I have ever come come by. My wanting for things to be precise, mechsnical inclination, my ridiculous attention to detail, and drive would come in handy. Time for another career change, what holds me back is that I do not have the freedom, nor can I afford to start off as a newbie. This is it though. I know it. *Typos

@stefankarlsson9762 2 жыл бұрын

Fantastic, very easy to follow. Thanks for sharing

@lumpyzx2645 3 жыл бұрын

So THATS the part I forgot to do, been a while since I've run a lathe and I was running some practice passes a bit ago on some plastic and a few times I cut right through the high side of my threads, wasn't sure why, now I know, I got certified as a machinist when I was 16 and I'm 22 now so I've forgot quite a bit, tryina get back into it and you just solved my issue, I knew it had to be something simple, I just forgot to wait for the number to come around before I engaged the feed

@martinS-vn3wy 3 жыл бұрын

I was taught to turn tool upside down, run lathe in reverse, and cut from chuck towards tailstock. This reduces the risk of a crash into the shoulder, and no need for a large undercut. I always cut threads this way, and have done for last forty-five years, unless using an Ainjest attachment.

@453421abcdefg12345 2 жыл бұрын

Martin 1299S: that is a good method if you have a good lathe, but it does tend to be lifting the toolpost off the bed, rather that pushing it down.

@junjunmulleda5467 7 ай бұрын

Great video explaining this process. Thanks.

@TigerCarpenter 2 жыл бұрын

thanks for sharing this method. I will check it out on my kather when it arrives.

@craigmuscat537 6 ай бұрын

Cheers mate. Nice refresher.

@italis2542 2 жыл бұрын

Smashing, brilliant, awesome!

@wagontrack Жыл бұрын

Excellent post.. straight to the point with no excessive verbal chatter (:0)

@fukcg00gle95 3 жыл бұрын

Excellent tutorial! Tyvm 👍

@lotus7even Жыл бұрын

Very good demonstration thank you

@larryschweitzer4904 2 жыл бұрын

I have a lathe with an imperial lead thread so need to change gears to cut metric threads. I always cut straight in and much prefer to cut away from the chuck. I prefer to use HSS steel tools though I do have carbide inserted tools. I also have made an inside carbide tool for small inside threading. Well done video.

@douglasgeddes5228 3 жыл бұрын

Would recommend using coolant when screw cutting you will get a much better finish, when I served my apprenticeship in the late 70s I ended up doing all the 2 and 4 start threads for the marine engineering company I worked for; that’s advanced screw cutting 😀

@bigsmoke6189 3 жыл бұрын

Good to see an instructional video with carbide threading inserts , only thing I would add is carbide inserts give a much better finish at higher speeds , something to work your way up to if you're disengaging the half nuts and you've got good hands.

@Handmadeextreme 3 жыл бұрын

Absolutely right. Got to have quick hands when doing it manually at the higher speeds.

@old_guard2431 Жыл бұрын

Appreciate the comment. I was wondering how slowing the lathe way down was affecting the “speeds and feeds” equation. Presumably a high speed steel cutter would work better, perhaps with some tuning of the tool geometry? The trade-off is: if you don’t already have the tool in your inventory, you might spend more time grinding the tool than what it takes to make the part. In any event, the thread seems to be mechanically sound and passes the cost/benefit test. Comparing the final thread with one cut with a die would be an interesting exercise.

@Umski 2 жыл бұрын

Thanks, this is like having a virtual 'over the shoulder' look within a machine shop - I have a small imperial Holbrook I acquired from my old Chemistry teacher's dad who was an RAF mechanic and then a technology teacher before he suffered from health problems and had to have his basement workshop cleared out - there are so many bits he had made for it I have no clue what many of them do as they only taught us basics at school - I would love to be able to use the thread cutting feature but am too scared I'll mangle the whole lathe doing so!

@keithwiley3098 4 жыл бұрын

Love the term Gutter used for UNDERCUT. Machine the undercut to the thread root dia. also use a bit of coolant. Great video well explained.

@Handmadeextreme 4 жыл бұрын

...Undercut... That's the one..😁 I normally do but for some reason I went a bit shallow. Finger trouble, number trouble, general incompetence... who knows haha Thankfully it turned into a nice opportunity to demonstrate the advantage of this method over the drive it back and forwards one. Regarding coolant, normally i'd use some cutting oil but left it out for the video just so it's a bit clearer for people to see whats going on but your absolutely right! Thanks for the support and i'm glad you enjoyed it. 👍

@chrisstephens6673 4 жыл бұрын

@@Handmadeextreme blame it on concentrating on the filming.

@erfut Жыл бұрын

Thank you, great tutorial.

@projectworkbench2783 3 жыл бұрын

When the thread chart says 1-8 you can engage the half nuts on any one of those numbers. You can also use a different number each time you engage the half nuts as well.

@haroldpearson6025 10 ай бұрын

Suggest you check Colchester training films on screw cutting. They show the topslide set over at half the thread angle. The cut is applied using the topslide with the cross-slide left at zero. So you are only cutting on one edge of the tool, the other side of the thread being generated by the top slide.

@huzefagirnary1064 3 жыл бұрын

Looks amazing... Nice video!

@basilwatson1 Жыл бұрын

My lathe was built before threads were invented .... if I win the lottery I will upgrade ! ( some nice tip in that vid such as highlighting the part )

@rubelkhan131 Жыл бұрын

I doing this from last 10 years in Singapore. And i love to make it

@cisco5400 2 жыл бұрын

Interesting, very inspiring indeed. Thank you

@sergioaranguizthompson6807 2 жыл бұрын

I said only one things: so said you THANK YOU for sharing us your work on a Lathe!!... God bless you and your families and friends in UK!!... best regards fron Santiago of Chile, SouthAmerica!!

@isoladeipirati 3 жыл бұрын

Very Clear explanation! Thanks

@Handmadeextreme 3 жыл бұрын

Your welcome. Glad you enjoyed it.

@jackedwards1306 4 жыл бұрын

Very helpful and easy to understand, keep at it !

@Handmadeextreme 4 жыл бұрын

Thanks Jack, I'm glad you found it helpful. 👍

@gideonnartey1412 3 жыл бұрын

hello join me at facebook to learn more gideon de hit maker

@yasseergunga9563 3 жыл бұрын

Thank you a lot ❤ this give me idea for exam how to prepare for everything

@Handmadeextreme 3 жыл бұрын

Your welcome. Glad you enjoyed it and good luck with your exam.

@yasseergunga9563 3 жыл бұрын

@@Handmadeextreme thanks once again ❤

@joshuagosling3341 4 жыл бұрын

Great video! Really easy to understand the process. Right where are my workshop keys to go and give that a go! 😃

@Handmadeextreme 4 жыл бұрын

Hi Josh, I'm glad you found it useful. Good luck in the workshop and thanks for the support!

@Bianchi77 10 ай бұрын

Nice video shot, keep it up, thanks for sharing it :)

@manin10 3 жыл бұрын

I got 11 cars and several motorbikes. I bought a lathe for this kind of projects. I remember the first time I cut a perfect thread. It was like I'd mastered witchcraft!

@johnhoylessceptreofself-so6214 2 жыл бұрын

Funny this should come up. I have a Myford ML7 and I was doing an internal acme thread yesterday. It's a bit of a challenge.

@joakoch 3 жыл бұрын

Great explanation, thank you very much!

@Handmadeextreme 3 жыл бұрын

Glad it was helpful!

@arumugamm1400 Жыл бұрын

Exellent video sir, very useful for us. You told some of tricks.Thank you so much sir.

@stuartkidd3624 Жыл бұрын

Really good video nice and clear. Thanks

@carlitogayuma5006 Жыл бұрын

Nice work sir,excellent.

@ehamster 4 жыл бұрын

Good video editing. I also have a metric Harrison. For the thread you were cutting you can engage on any number every time. You seemed to use 8 the first time, then wait for 8 every time you re-engaged. You could re-engage on any number. Try some “air cuts” to prove it.

@Handmadeextreme 4 жыл бұрын

Thanks very much, glad you enjoyed it. For that thread your absolutely correct. I think I might have just reused the same bit of footage each time. Takes a lot time to set a shot up so reusing the footage saves a bit of time in production. Thanks for your support 👍

@donswords6671 2 жыл бұрын

I bought a used Harrison AA. I took apart the cross slide dial assembly to clean and destroyed by mistake the 2-pin circular locking ring that holds things together. Tried to fashion a new one but cannot get the right size/pitch to go on smoothly. Any idea what those numbers could be?

@A.AA34 2 жыл бұрын

thanks man.... great video

@wildcatmahone-md6me 3 жыл бұрын

That's ok. Best to run in CCW thread from left to right. Use a hard saddle stop or DRO for Z0.

@mickl8212 2 жыл бұрын

Brilliant info on this video

@lintelle2382 3 жыл бұрын

excellent video, brother!

@richardbenson7264 2 жыл бұрын

Realy enjoyed that 👍

@DucatiMTS1200 2 жыл бұрын

Super tutorial.

@MidEngineering 4 жыл бұрын

It's well worth getting the full form inserts for whatever pitch you are threading, especially for common pitches such as 1.5mm. You can easily tell when you've cut the thread deep enough & you get a much nicer finish with no need to faff around with a file & Scotchbrite !

@Handmadeextreme 4 жыл бұрын

I'll check them out, thanks for the tip. 👍

@marley589 3 жыл бұрын

That insert is far too big for the pitch & will give a much larger radius in the root of the thread. So the cut had to be deeper to get the nut on that's why you machined into your undercut. This thread will not engage properly as the flanks have been machined too wide for the nut crest radius to clear the large root radius formed by using a tip that has a root radius form too large for the pitch. Also a full form insert will create the correct crest radius so no file or scotchbrite. The inserts are not designed to cut all around their profile so plunge cutting is not advised. Always advance the tool on the compound slide for each cut. You could have also increased the undercut with the threading tool.

@azohussen5120 7 ай бұрын

Thank you

@REDLION0044 2 жыл бұрын

Thank you for an excellent threading video, best I have seen. You mention an advanced method, but I cannot find it in your videos, am I missing something or is it work in progress?

@benfegan5414 3 жыл бұрын

Great little video and I still cut threads with this method. Cutting speed is way to slow as the tool is tearing the metal not cutting it. Coolant or Rocol will help with tool life and finish. Did you set the tip square to the job?

@Golo1949 2 жыл бұрын

Very well explained.

@andrewnicholson3873 Жыл бұрын

I liked the way you explained the process at each step, but I'm not trying to teach you how to suck eggs, but when you're reengaging the thread cutter, after it's been moved, engage the drive as you would normally but keep the cutter off the job. Stop the Lathe with everything engaged and using the cross side move the cutting tool from left to right so it is in the correct position in relation to the thread. It will now be in the correct position to finish cutting the threads. I have also been told but haven't tried it yet, that if you can use the thread gauge to check the correct depth of the thread as well as the pitch. Great Video.

@chikoykoypg194 3 жыл бұрын

It realy helps me thank u so much

@gaz.ed.634 2 жыл бұрын

Great video and explanation. 👍..... Served my time hand cutting threads like this but using the angled compound slide (half the angle of the thread) with hand ground has tools... I really do miss manual turning now I'm full CNC. . I would add, and by no means is it a criticism. Using a full form carbide insert as you are it's advantageous to leave the thread diameter slightly big (+0.2mm) so that when you get to full depth there is metal there for the tip to turn the rads on the peaks of the thread thus no need to dress the thread with a file. Also file away the thin parts of the first and last thread too.... 👍 Lovely vid tho'. Subscribed. 😁