Auto Retracting Thread Cutter.
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- Опубликовано: 5 фев 2020
- This is how I made an experimental hi-speed thread cutter, it is designed to be mechanically triggered so that it retracts away from the threads to a safe distance, It was designed to be simple and repeatable.
The thread cutter will allow the threads to be cut at a fairly hi-speed and give me plenty of time to stop the lathe afterwards, I also wanted to get away with altering the tool post just to cut a thread.
Cutting a thread is now cleaner, easier, faster and safer than ever before.
In my videos, I show you what I went through while making the items, I never tell any one how to do things, because no two people have the same equipment, materials or time. 
Хобби
As a former gunsmith, I've threaded up to a shoulder of a rifle barrel quite a few times... and have been "not quite fast enough" to stop the feed, and retract the tool simultaneously, a few times as well.
I'd have dearly loved to have something like this when working on expensive barrel blanks!
Clever design and very nice work!
Hi, thanks for your comment. I do know what you mean about missing the spot. There are now several of these that have been made around the world. All of them with a silght difference and I belive that one Indonesian country is manufacturing them. I think thats great.
I'm happy that an Idea of mine has a place in someones tool box.
regards
Brilliant RUclips channel,
Looks like a smoother thread because of the greater speed you can now use.
Thank you for your kind comments, yes, the faster the thread is cut, the better is looks.. but, I must warn you that the faster you go, the pucker factor increases.
regards.
I do prefer mechanical systems for something like this, so this gets the tick from me
Great work, and great tool
Hi, i have watched many of your videos i particularly like the gearbox and I wondered if i could make something similar for my lathe. I also found a large magnetic chuck in a skip, after taking it home I stripped it down cleaned it up and reassembled it works fine, but i’ve never used it, not yet anyway, they are bloody dangerous things to strip and rebuild.
@@Thesheddweller
Plus the eletro-magnetic ones need a power cable that winds up around the spindle. 😖 I've used smaller magnetic chucks on lathes and I was always leery about using them. The tool grabs and watch out. Plus every time I used one I always took a very light skin pass across the the face as the chuck may have been used on a different lathe. I think Clickspring has the right idea of using cynoacurite for small thin parts.
@@mpetersen6 Hi, thats probably why I’ve not used it yet.
Truly an awesome addition to the shop! Great design and build. Now your bladder can rest easy.
Thank you for your comments. Regards
I'm impressed. I knew a guy who had a gadget called a snap tap. Very similar to what you built. I love the auto retract adjustable fixture you put near the chuck at the end. Brilliant.
Hi, thanks for your comments.
What a great tool Sir. I'm only a hobbyist when it comes to machine shop work. My career background is pipe welder, tube welder, fabricator, and Boilermaker. I own a 1960 South Bend 13" lathe that had a lot of hidden issues until I actually did my project. I guess buying a lathe is worse than dealing with a used car salesman. I want to say thank you for sharing your work, if I ever am able to pick up a nice little mill I certainly will give this project a go. It was amazing to watch it work especially at 1000 RPMs
Hi Paul, have fun. cheers
Absolutely brilliant and now I have another project. Thanks for sharing this video with us.
Hi, Thanks for watching.
Amazing! Thanks for sharing. I enjoy seeing folks think outside the box.
thanks, I’m glad you enjoyed the video. cheers
I was proverbially sent at your pucker factor terminology 🤣
That aside, this is the most ingenious lathe tool I've ever seen, kudos! I hope you filed a patent before anyone gets any ideas!
Hi, I'm glad you enjoyed the video.
A patent is as much use as a female breast on a mackeral. There are far too many countries in the world that do not respect the patent system. cheers.
I am surprised I have never seen this before. Many lever activated retractable but never spring loaded! Thank you for sharing your prototype and thoughts! 👍
Hi, thanks for watching.
Outstanding design. Thanks for sharing!
Scott
Hi Scott, thank you for your comments much appreciated. Regards
Terrific piece of conceptual engineering. Absolutely spot on with your brilliant idea an execution.
Hi Don, thanks for your comments, I’m glad you enjoyed. Regards.
I was curious and turns out that’s a fantastic idea well done well thought out
Thank you for your comments, thanks for watching.
Loved it, the process of making it even more. Congrats!
Hi, thanks for watching, glad you enjoyed.
nice job, i´m designing my own lathe and now i'm in the part of auto feeding to make some threads and this video is so helpfull
Absolutely amazing. Your creativity never ceases to thrill me- it's a joy to watch you work, mentally and physically. Thank you for sharing!
Hi, thank you, cheers
That was absolutely brilliant.
Hi, thanks. I recon there are now thousands out there now. cheers
I just discovered your channel and love it. You are the Sir Richard Attenborough of machining videos. And bonus, you have a keen sense of humor. Great job! I’m an enthusiastic subscriber.
Thank you for your very kind comments, but I think Sir Richard can breath easy.
I’m pretty new into the machining. it is always so good to see videos of guys with a solid work ethic and willing to put in the time to do the math, work, and finish complex thinking projects! Thank you for providing us with wonderful videos!
Thank you for your comments, being new to machining is a great hobby/skill and if I can throw my pennyworth in I would say this as I always said to my apprentices.
"All machines are living devices… they have one sole purpose in their life… that is to kill or maim you.. always be mindful of how to quickly stop the machine in an emergency… always wear PPE.. Never wear gloves while using a machine.” It is important to read all safety notices and/or a factories act. above all.. have fun.
Hi, thank you for your comments. regards
Brilliant idea and excellent execution, congratulations man!
Hi Antoine, thanks for your comments. Regards.
LOVED this idea!! Great work!!
Thanks, it's being copied all round the world, and I wouldn't be surprised if they are on sale from the "wish" shopping channel. cheers
Nice exercise in processing! I've cut about every kind of thread on the lathe you can imagine, and you are right, there have been a few times the pucker factor came into play. I'm glad to report no permanent damage to the sphincter or the lathe.
HI. Thank you for your comments. I’ve not cut a huge number of threads in my time, but one thing I do know, is that the two laws of probability ‘sods law and murphy’s law’ both play a part in thread making, doubly so when using thread gauges.
regards
That is simply amazing! Fantastic design and execution! Subbed!
Thanks for your comment, Glad you enjoyed watching.
Amazing workmanship
Hi Surinder, thanks for your comments.
Ingenious, and very well executed!
thanks for watching
A very intricate device indeed. Well done.
Hi, thanks for your kind comment.
That's some really nice work. I enjoyed your workaround solutions to deal with vise limitations. The design is intriguing as well.
Hi Dudley, Thanks for your comments.
I just found your videos watching the collet holders. I saw this alien contraption for threading and was interested. Now I get to see you make it! You, sir, deserve a sub and a bunch of thumbs ups.
Hi, Thank you, thanks for watching, cheers
Wow! A fantastic prototype! Best be applying for a patent.
Thanks for sharing your knowledge with us.
Cheers
I’m afraid that has probably gone to Srilanka, they have asked a lot of questions about the thread cutter.
You absolute gent, I've been searching for a free physics simulation for mechanisms all weekend. Algoodo to the rescue!
That thing is genius. Great job
Tim Short hi, thank you for your comment.
What a beautiful tool, I hope I get around making one like it. Thank you for sharing.
Hi, go to www.thesheddweller.com for the sketch
@@Thesheddweller thank you, I was checking out your site this morning. What make is your surface grinder. I like how it was made for coolant, I wish mine had been built that way. I use a mist system, it works ok.
What an amazing project. Thanks for sharing this! It's very inspiring.
Cheers
This is proper incredible. Very well done.
Hi, thank you, thanks for watching.
Very well designed and machined! Nice work
Hi, thanks for your feedback.
Great job and machining tricks.
Well-done sir .👍
khan abdulrehman Hi, thanks for watching.
Beautiful great bit of kit as you would say
HI, Thanks for your comment. Absolutely… :-)
lovely little project now on my things to do list
I’ve put the sketch on my website www.thesheddweller.com
Excellent travail monsieur .
Un grand salut de casablanca " Marocco"
Salut, merci d'avoir regardé, je suis désolé. Il a fallu beaucoup de temps pour répondre, j'ai manqué votre message.
Brilliant! Loved that!
Very cool and genius design.
Absolutely brilliant. Well done sir.👍👍👍👍
Hi. thank you for your very kind comments
I like your approach, designing process and machining. It is interesting designing and proving a design concept. Sometimes while in the manufacturing process of the parts of a concept design you may notice varies that were not considered in the design. These type of situations for the most part are solved by the machinist on the shop floor. I see this in your video and respect your knowledge and skill. awesome!
Hi, Thanks for your kind comments
Great work keep it up ! You just got a new subscriber, I'm in my first year of apprenticeship as a machinist in Switzerland and I'm loving the job !
Have a blessed day
Hi, Thanks for your kind comments and thanks for watching.
Machine engineering is a great career but, as you will find out, it can be a bit like (real) police work,... in a word,.. repetitive, except that you are rewarded with an end result, something that will probably last for ever. enjoy.
PS. I'm just about to make another video for the two chucks, a modification.
That is a bit of an effort in order to take it from the drawing to the prototype. It is a wonderful tool. Threading at the higher RPM certainly improves the material finish. It’s a good choice of a threading tool retractor for softer material and cutting right up to the chuck. Thank you for sharing your idea and showing the steps to make it.
Hi, Thank you very much for your comments, I’m glad you enjoyed the video.
Wow, it´s a fantastic work. Thanks Sr.
Hi, thanks for watching.
Exceptional engineering. Well done!
Hi, thanks for you kind comment.
Very nice job!
Thanks for your comments
Just found you and what a ingenious tool, love it 👍
New subscriber and I'll be checking out the rest of your content too, thanks for sharing 😃
Thank you for your subscription and kind comments.
Congratulations, this system is very enteresting.
Thank you for watching
Commendable, and I'm impressed. Thankx for sharing
cheers
That is simply genius!!
Hi, thanks for watching.
this is great work and craftmanship! thank you for sharing
Hi, thanks for your feedback, Regards
This is fascinating. My lathe only goes down to 360, so a definite problem, this might solve. I just have to decide if I can adapt one. Great to have access to the drawings.
Wonderful engineering. Thank you for the video
Thank you for your comments.
Super cool ! Love when people create a complex but simple mechanism. As someone (who probably never invented a tool in his life) suggested, You could start the thread from the other side, but I never did like that. Very cool. I willmsave the video and hopefully one day have the time to make something similar… That hopefully works as well !
That’s some good machining and great idea. My Colchester has the “Ainjest Quick screw” attachment so it can be used for Ext, and internal threads up to a shoulder it’s a great piece of kit.
Hi, thanks for watching. I know some machines have them as standard.
Ingenious! Now, all you need is to make a stop, attached to the lathe bed, so that you can set it beforehand, and when the tool gets to the point where you want it to pop back, it touches that, and the device is triggered. You don’t have to do anything after it’s set.
You’ve got me thinking about this, so I’ll go to the drawing board, and try to make something like this. So, thank you there.
Hi, yes I have thought about this, but I have so many projects on at the moment that I’m not sure whether I’m coming or going… It’ll be good to see what you come up with..
@@Thesheddweller you and me brother. It’s a cascading problem. In order to complete one project, I need to make something, which triggers another thing I need to make, which gives me an idea for another project, and so on. I must be somewhere in a good dozen projects at any one time.
@@melgross so true.. :-)
Sir..... Marvelous engineering. I salute to your idea.
Hi, thank you for your comments, I'm glad you enjoyed the video.
Excellent accessory to the lathe. There would be a definite market for this unit. I wish I had the time and the patience that you have to built one..
Hi, thanks for your feedback. I have been approached by dozens of eastern manufacturing companies asking for my approval for them to manufacture this unit. I have stated and will continue to state that, everything I make or publish is open information for everyone to copy and must not profit by it. So I take it that variations will soon appear on the open market very soon.
you have a new subsciber, i like the way you explain something that reminds me (now grandpa) of my grandpa when he explained something to me 😊
Hi Martin. thank you for your subscription and your very kind comments. I’m glad you enjoyed the video>
You have got a winner. The “puckering” that you referred to, is something that I experience after more than fifty years. Now to find a way to get around the inch vs metric spindle reversal issues. I am now a new subscriber.
Hi, Thanks for your feedback I've never really cut threads in my working life, because the stuff I machined was too big for threads, it wasn’t until I retired and started my little workshop that I realised how efficient a laxative that threading could be. At work most threads that were cut were done using big Die heads and massive taps, until the CNC turned up then everyone got a dose of the S***s.
The inch vs metric spindle reverse issue can be tackled with a dog clutch Google Meek screw cutting clutch, unless you have Myford you would need to develop your own implementation but the principle is there.
@@tonyray91 ,
Hello. I did look at the dog clutch that was made by Graham Meek. It looks like a great option. My next step is to find some drawings, as a start to adapt the concept to a 16” South Bend. I thank you for the suggestion.
Hi Robert, The Myford version is published in Meek’s book which is similar to what you would need on an SB model 9 but if the 16 has an internal reverse mechanism this might be more informative www.model-engineer.co.uk/forums/postings.asp?th=171112&p=3.
@@tonyray91 ,
Thank you. I am on the hunt.
Thank you for the drawings
Great engineering. I have never seen anything like this.
Hi, i always say, 'that there’s nothing new in machining’ and it's true, its just that some things aren’t aired very often. regards
Nice work!
Hi, thank you.
SPECTACULAR,VERY BEAUTIFUL,VERY GOOD
HI, thank you, thanks for watching
Lol! The pucker factor 😂 that was an excellent way of explaining that. Subscribed 👍🏻
Hi, Thanks for watching, I still find that phrase funny… :-)
Brilliant design my friend. Never would of thought of it. Amazing! I am now a new subscriber!
Thank you for subscribing and your kind comments.
Thank you for your subscription and kind comments.
What a excellent video and I love the way your so meticulous in all you do, this the first of your videos ive seen but not the last.
Keep up the good work, now to subscribe and hit the bell.
Thanks for your comments.
Wonderful idea!
cheers
This is very good working tools,
I try to make it, sir.
Hi, enjoy, have fun. regards
Brilliant! Having experienced more than a few explosive puckers, I expect the time invested will be more than compensated for in reduced laundry bills.
I do believe I'm saving a bob or two on laundering.
How to know if your machinist is really a machinist. Listen to their terminology. You don't have to understand the lingo, only recognize it. If your machinist says things like "pucker factor" you can rest assured, this is a veteran! I see all kinds of RUclips vids of people machining at home. While many manage to achieve end results that at least look like what they set out to accomplish, this channel. I can say as a multi decade invested in this industry personally, is of the highest caliber! After watching the tail stock correcting series, I knew this guy was the real deal. He doesn't down play mistakes, and spite trying to lay out well in advance his plans taking into consideration the necessity of orders of operations, but down to details like avoiding re clamping work pieces if possible, and checking square and concentric before and after, he still shows and explains how and where things go wrong, and explains his plans on how he can do it better next time. If you learn more from accidents than getting it right, then you are top notch in my book! It's difficult to make entertainment content about material a person sees 40+ hours a week for many years in a row, and still be captivating. Yet this channel is one of my favs.
Hi Mike, Thank you for your comments, they are very encouraging. The problem machine engineering at home presents is that, one can very quickly find ones self lacking in resources, not just the material ones, but the skills that have to be very quickly learned, like draughting, material acquisition, filming, sound and so on. After what was a lifetime following orders,... (read a drawing and machine a given amount of material from a piece of material to achive the next stage in the process and pass it on for further processing at the next station.) I am lucky to have had the opportunity to have used almost all machines on the shop floor in an effort to remain employed during my working life. I enjoy working in my little shop and because there are a lot of Channels out there telling you how to do things, I prefer to show it how I do things with what I have. ATB..Cheers.
it was smart and it works fine good works mr
cheers
What a brilliant disgin 👍🌺
Hi. Thanks. Cheers
Very clever. Nice work.
Hi John Krebs, thank you for your comment
A new subscriber... Very impressive engineering and manufacturing. Congrats on a fine fixture. Fred Ontario, NY
Hi Fred, Thanks for subscribing and for your comments.
Excellent work-thanks for sharing🤓👍
Hi, thank you thanks for watching.
Very nice job man 👍👍👍
Hi, thanks for your feedback
Great video!
Hi, thanks, thank you for watching.
this man is amazing
love you work
Hi, thanks for watching, regards
Love the content so far.
I'd like a shop tour please 😊
Hi, thank you. I’m glad you enjoyed them.
As for the shop tour,…. Errrr,…
wouldn’t you rather see the inside of my work boot,…. it’s not so cluttered.
🤣
Obrigado por postar, obrigado por transferir o conhecimento, ( thank you for transfer the knowledge).
Obrigado por assistir ..
I like your design and what's important it works on your machine. What I like about it is that the workmanship is so good and it looks tight. I'm still trying to find a good mill and lathe and get to working on it. I have many projects to accomplish. I hope that I do as well as some people. I am trying hard to find a quality machine too, I like precision and accuracy.
Hi, I just wish after building the shed that I had enough money to buy better equipment, but as in life one has to make the best with what one has.
If I could wind the clock back, would I have chosen differently, yes I would have bought old British, German or American machines and refurbished them if they needed it. as I did with the my grinders and will do with the shaper.
Excellent vid and work, thanks, I have been musing on something similar myself based on a bolt action rifle I once had which is basicly your very well thought out design, kind regards from South Australia
Hi Geograph1000, thanks for your comments, I have just received a text from a Russian guy who has told me that the cutting tool action is from a Russian rifle. Good to hear from you in Australia, been there a couple of times for a short stop over enroute to NZ.
another amazing project! wow!
Mats World Hi, Mat.
Thanks for watching
I used to own a Hardinge HLVH, now sold. You could thread up to a shoulder with automatic withdrawl at a 1000 RPM !. All day long. However, the tool you made is excellent , well done.
I know, the fitted option is perfect.
Awesome Work. Greetings from Venezuela.
Hi Jaime. Thank you for your comment.
very good work congratulations.
Hi, thank you, thanks for watching.
Another good video, thanks for sharing.
Hi cledwyn hughes. Thank you for your comments.
excellent! thats a really smart tool, well done. after spending years manual thread cutting and gaining more greay hairs than i deserve I an now spoilt and have a Harrison Alpha semi cnc lathe ..but still pucker when the thread runs to 0.010" from the chuck jaw at 1000 RPM ;)
Hi thanks for watching.
perfect that is really good thanks for sharing
Wow I like this. Might have to do one for myself.
Hi, I've put a sketch on my website www.thesheddweller.com
Bravo ! Très bonne idée !
Et une très bonne fabrication !
Félicitations .
Georges
Well done ! Very good idea !
And very good workmanship !
Congratulations.
Georges
Salut Georges. Merci pour vos commentaires. Je suis content que vous ayez aimé regarder.
Cordialement.
that is a very good sistem for treading any machines have this tool but its rare see it , you have make a good work mister
Hi lacaver64, Thank you for you kind comments,
regards
Good idea master
Cheers
That is fantastic! Takes some stress away and lets you get really close to the shoulder if need be.
To be honest, I still clench when threading up against a shoulder on a CNC lathe.
I always did when the guy next door threaded on the CNC. I’ve seen him run down the workshop a few times.
Clever design.
You developed a great tool, simple and effective. I'm surprised that someone isn't marketing this product.
I have been working on a different solution to the same problem. My plan is to use the output from a DRO scale to set an electronic stop which would control a VFD with a braking resistor. Your solution is far more practical for mass market application. Thank you for sharing it :-)
Thats a brilliant idea. because it doesn’t have to be triggered by a DRO it can also be triggered by a mag mount slide switch for those without DRO's
@@Thesheddweller A switch would work, but I already have a DRO and it offers some other advantages. I want to be able to start deceleration before the carriage reaches the actual stop location and need a method of measuring carriage velocity. I intend to use a rotary encoder to measure the velocity of the chuck.
@@EDesigns_FL Have fun.
Oxxxx, very good. This is cool job!
Hi. Valeriy. thank you for your kind comments.