OLD STEAM POWERED MACHINE SHOP 49 Cutting a square thread
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- เผยแพร่เมื่อ 6 ต.ค. 2024
- Welcome to video #49 of a shop that I assembled to demonstrate the way things were done in the early days of industry and innovation in the world. Like "parallel universes" countries discovered and borrowed ideas and techniques for building their industry and keeping it running, all with water, steam or animal power. Earlier videos explain the engines, boiler, and various machines in the shop. Thanks for visiting my shop where measurement is by steel rule, cutting edges are ground by hand, speed is slow, feed high, power transmitted by leather and some "feel" of machines is required. As always, comments, questions, discussion, and stories of steam power and old shop work are always welcome here.
- วิทยาศาสตร์และเทคโนโลยี
Thanks, Dave! So great! Sorry for the delayed comment... What a pleasure to watch, learn and enjoy!
Your a gifted machinist who is recapturing our historic past . Thank you
Absolutely! Very well put Mr Micheletti. Best regards. Neil Barnes.
WOW! I was in Mobil Alabama ship yard and saw a large machine shop in one very large building. I went inside to a row of 15" swing lathe's where two machinist were working. All the lathe's had lantern tool post's and the machinist were using a piece of angle iron, with a slot in it, that they would set on the bed of the lathe to set center, very quickly, on the tools when they changed them. Neat and clean machining, low RPM, and very efficient. I am 64. Started machining in 1978. All manuals until 2006 when I started at Halliburton on a 4A Warner & Swasey roughing parts for the CNC's. About 4 months later I started training for CNC"S. I had collected a few books on the machine's and machine shop's on the very machine's that you are running, Sadly I lost them to a flood in 1990. Thank you, Thank you, Thank you for posting your awesome work and for sharing.
Hi Ed, Thanks for your comment and recap of your experience. I spent some time in Mobile in the early 1970s, was that shop right on the bay? ....Dave
It's great to see someone using the old equipment the new stuff has nothing on these machines my drill press can't do half the things that your drill can do and all the new CNC machines will be in the scrap haep and your machines will still be running great 👍👍👍👍👍
Love the sound of an old machine shop. Thanks for preserving this and continuing to show us how it was done!
That shop is a magical place, Dave. I'm so happy I found your channel, and I thank you for sharing it with us.
Congratulations on 49 videos. Haven't missed 1. Can't wait to see number 50!
Nice to see a good old machine lovingly returned to life and service
Great job restoring that latest steam engine. You will get the bugs worked out of it in due time and it will be doing good work for someone directly.
I am a stationary engineer by trade and and a volunteer 1906 Baker steam engine operator, This is good stuff!
Hi Doug:
The uni-flow Baker, great engine, thanks for watching.
Watching that old beautiful machinery running I can't help but smile. Great job on the part and thanks so much for sharing the ride!
Thanks for your loyal interest...Dave
I'm new to your channel and I'm no machinist. I like the way you take the time to explain things like settings and the math behind them.
I also note that you're super careful in a dangerous environment .. specifically, you have all of your fingers and both thumbs.
I've subscribed and now I need to start catching up on your older work.
I'm 67 and we're probably in the same neighborhood of age.
Thank you for making these ~!
That Morris engine looks incredible.
I always look forward to watching your videos when they come out.
I hope you and your family have a wonderful Christmas
New old part made the old way and looking great. Thanks Dave, always a pleasure to see the old iron still tuning out good parts.
It’s great watching this. My shops are so much different. But the book I originally learned from when I was a kid, in the 1960’s, was my fathers old “Modern Machine Tools, 1903 edition”. A course for schools for machinists. I literally wore that book out. A few years ago I was able to get a digital copy from the Google scanning project. I’ve now got, between paper and digital editions, maybe 60 or 70 books from the 1930s back to 1768.
It’s amazing how much of what we do in our non cnc shops that are almost exactly the way they did it a century, or more, ago.
Hey Dave..I saw that piece of junk Vertical engine hauled out of the woods in an earlier video. All I can say is WOW! Beautiful restoration and like new condition. I'm not one to like paint and cosmetics but THAT one turned out lovely. Thanks for your vids...finest machine work vids on TH-cam. You have some great steam engines and a fascinating shop set up..things most of us only dream about. THANK YOU! Lester Bowman.
There she blows...or puffs! Looks awesome. I've been following the rebirth of that engine since you showed the rusted parts in among the blackberry bushes. Took several episodes just to get an understanding of how it all went together. An it looks so unique from all the other stuff out there. Lot of work and patience, making the base from scratch, then using the big shaper to get it to run flat and parallel. Moving the pulley and govener to opposite sides, and lastly making the slide valve. I can't believe how exciting it was to see it run. Not only that but it really looks like it's smooth and well balanced. Again; congratulations on a job well done! I've gladly helped several people to discover what one part of the world was like at the turn of the century before. God Bless, Scott, Vancouver, Washington
Thanks Scott, It was a learning experience ......Dave
Pushing 40 years ago I apprenticed with a Machine Manufacturer here in Indianapolis. They started back in the 1800's. I used to make Square thread feed screws 20 plus feet long on a manual lathe. We used a profiled wooden 2 x 4 with a radius cut in it to jam the screw against the follow rest on the compound due to the screw sagging from length. 1/4" pitch, 2-1/2" O.D. double lead. Chatter was always an issue so we would grind a small radius on the nose of the tool. It helps tremendously instead of a square end. We would cut the screw a bit further than 1/2 way down to a steady rest. After finishing that end to depth, we would turn the screw around, pick up the lead and finish the second side, blending the thread. The tool pressures are much different on a square thread than any other type. Nice finish on what you did. 2nd, my thought on that end taper on the termination end of the original screw you copied was probably formed by the lead in of a die. Just my 2 cents. Thanks for what you do to put this out there for us to enjoy David.
Thanks for the story Russ, I think you're right. The leading flutes on the die had an angle on the bottom of the thread that lessened as the full depth flutes came around...Dave
Hard to believe that was a bunch of rusty parts found in the woods. Thanks for sharing the restoration with us. Nice job on the screw.
Музыка хорошая! Джек Лондон и Марк Твен.... Для меня лучшие американские писатели. То что ты делаешь Дейв это фантастика! Спасать историю, давать вторую жизнь паровым машинам! Большое уважение от меня из России!
Через несколько недель я уезжаю во Флориду на зиму, а в следующем апреле вернусь в паровой магазин. Я сделаю последнее видео за год ... Дэйв
@@davidrichards5594 у меня тоже много дел зимой. Зима в России холодная. Во Флориде намного теплей)))). Зима в России каждый год это испытание, много снега, холод. У меня лошади, зимой с ними тоже много дел. Удачи Дейв....
Виталий из России.
The "new" engine is awesome! Absolutely a job to be proud of. I had never seen square threads done before. You make it look easy. I know it wasn't an easy task, especially when you had to build the steady rest to make it work correctly. Thank you for entertaining education!
The Morse turned out great. Glad to see it running. Marvelous job on the vise screw!!
It's nice to see all the hard work you put into that steam engine paying you back.
Greetings
I suggest the threads are stub acme cut with a die cutter. A die cutter would naturally have a taper on its starting end.
Love your shop and your expertise...I've learned a lot from your vids.....thanks.
I had to make a square-thread like that for a piece of laboratory equipment - like you I ground a tool to fit bang on (and paid attention to the flanks), but unlike you I ended up with thread grooves wider than the crowns! It didn't matter for my application, but I thought at the time if I did another one I'd make a narrow tool and shuttle it about a little with the top slide. All the best from UK, Mark
Yeah Mark, It doesn't hurt to be a little underwidth with the tool, you can always skin a little off one side with a little compound feed....Dave
Hi Dave, I thought that you went away in the winter? I am glad that you are still in the workshop. Could you show a bit more of your tools and how to operate them please? I am fascinated by power drills such as yours, particularly by the power downfeed and how it works. There are so many variations on a theme. Many thanks.
Hi Andy, Check the first couple of videos (oldest) in the play list. But I can cover it again.....Dave
@@davidrichards5594 I am sorry Dave, I should have applied a braincell before opening my mouth. I have been watching since the beginning when someone linked your video thinking I would be interested, and you have come so far that I forgot about the first introductions. Keep on keeping on and thank you for your wonderful channel. Best wishes, Andy
What an amazing job you did with this engine - it was essentially a pile of rusty parts - mostly rust - you are a credit to the vintage machning world Dave - you should be rightly proud of the results.
It's amazing how much you squeeze out of old equipment,but your knowledge base is wide..I think your the best teacher /machinist on U Tube.
Sweet as butter smooth as silk! Your knowledge is unfounded! We must have more smart men like you....
you and your shop are amazing. thanks for showing us some of the fine points of doing this job.
Nice to see that Morris running so steady, always great to see your videos when I get home from work.
All the machines are nice, but that drill is a piece of art.
G'day Nick, I have a steam powered model of this drill. It's available here, as are many other models, even a full workshop of models, all steam powered.
www.pmmodelengines.com/product-category/machine-tools/machine-models/
Greetings from Australia.
Neil.
I am glad to hear the engine running after being idle for so long nice work also on the threading thanks for now.
I would just like to sit around your shop and listen to the background noise of happy machines doing there thing.
There is some perfect about the mixture of paint and metal colors in the shop. Perfect
Merry Christmas. Hope you and yours are well.
David, Your shop is amazing. I have seen every video but always notice something new in each one. You had a good shot of the quick change gearbox on your lathe..and I sit back thinking the guys that made this spent as much time making it look awesome as they did making it functional, and durable. If I had a good picture of that I would hang it on my wall. Thanks!
Yeah, that was quite an improvement, I don't know who had the patent....Dave
Hi David. Only just discovered your channel so i'm going to go back and watch the videos from the beginning. What a fantastic shop, those machines themselves are works of art. Thank you so much for sharing these videos.
Very cool. My leg vise needs one too!
Hi Steve, It shouldn't be too hard. Got a Lathe and a drill, give it a try....Dave
Always a pleasure to watch you work. That old girl is looking good in her new environment. Have a Merry Christmas David!
I wonder how many machine shops like yours there are in this country? ??
If I were younger, with lots of money, I'd have one...
Thanks and keep up the good work.
You do a great service to all of mankind. ...🤗
Nice work on that simple follow rest! Definitely something that’s on my to-do shop list. And awesome idea with brazing the brass on the tips of the fingers!
Congratulations on finishing the Morse Engine. Glad that's your snow and not mine!
Another nice video Dave. Enjoyed. To get that thread end, back out with the crosslide before disengagement of the half nut.
Yeah, I finally got into that. Just back it off and don't even worry about disengaging....Dave
On the drill press I see a splined shaft running vertically. It has some pretty good wobble to it supposing it is bent or work hardened and thinking it might affect the drill speed if excessive. Not at this time and will be covered with lubrication. The drill itself is a wonderful addition driving off that old steam engine. I know you have several for different work categories. There is a tool missing which would have been in a complete machine shop at the turn of the 19th century.🎉
I CANT BELIEVE THESE MACHINE ARE SO OLD AND STILL WORKS THE LOOK JUST LIKE MODERN MACHINE EXCEPT FOR THE POWER SOURCE
I am amazed how quiet these steam engines are.
i'm going to use your steady rest ideal for my min-lathe. thanks for the video. love making tools to build to make my life easy.
Dave I have always done my square threads by roughing them out as an acme thread and then squatting them out. Less drag and less chatter, it looks as if that one was done them same way. Keep up the good work!
could be..Dave
Very nice machining David. Love the sound of the exhaust on the Morris.
Another 1st class job done and dusted , by the looks of the snow outside it will soon be time to get the shop prepared for winter and get ready to head south. All the best wishes for the Christmas and New Year holidays . Chris from England .
I'm always sad when your video ends, it's better than anything on TV !!! Oh well, guess I'll have to watch it again. I really like the drill jig, think I'll make me one.
Dave,What a refreshing way to learn some history and see how work got done in a different era. Great music and some wonderful intros!How about a session that consolidates some basics on working with cast iron. That is something new to me. Perhaps a trip to Cattail Foundry, with a look at some patterns, gating, pouring, and then back to machine something useful. Info like the hard spots from chills was new to me, as was the lack of lubricant/coolant during machining---and I wonder how much more I could learn....Thank you very, very much for your efforts.Dave Hull, PEPS--Gotta love the humor and anecdotes, too. "They only make cows so long...." It is clear now that your annoyance with the specialty ring fab guys was just a setup ploy for your masterful story about the blown electric motor. "They aren't going to catch on unless they can make them more reliable...." You totally got me with that gag!
Hello Dave once again thank you for sharing your knowledge and giving us the opportunity to see how things were actually done in the old days Merry Christmas to you and your family wish you a healthy happy New Year I'm sorry to the next video stay safe and well thank you
Nice to see you Dave ! I will look threw my stuff this week, I believe I have a straight tool holder for your lathe. We let you know.thanks for sharing Dave
Good video on how to single point a square thread to a tight tolerance ,and the old thread was most likely cut with a die or a geometric chaser,it’s just for a vice and was/is being mass produced.
love seeing the camel back in action, I still don't have mine running yet, but being off now for three months this winter it's at the top of my to do list. keep up the great videos.
Спасибо Вам за Ваши работы! С Новым годом, удачи, здоровья и всего самого наилучшего!
Thank you for your work! Happy New Year, good luck, health and all the best!
Bonjour Dave,
It is always a pleasure to watch your videos I am happy to have seen the details of the oil lubricator at its beginning. and what to say about the exhaust sound... Besides this, I am impressed by the accuracy of your tools, which helps for your jobs thanks to your skillness.
Amicalement, Raphaël
Another great video David, thanks for the thread cutting demo. I have an alternative thought on the condition of that original. The pattern cut there at the end where it tapers is indicative of being cut with a die. Maybe that shaft did not break but was welded on to a new piece of threaded stock as a replacement for the original worn thread at some point. Instead of making a whole new piece they just replaced the threaded part.
Thanks for telling us what that squeaking was. I've listened to you run that lathe a lot and that was the first time I've heard that squeak... sounded like a bushing going out. Love your videos, they're a real treat!
I have to do something with the belt alignment on the lathe, it drives me nuts. The rubber belt never ran in the center of the pulleys although it's in perfect alignment. Sometimes you have to just tweek things, and I've run out of adjustment slot on the top hangar, so I'll move the lathe a little endways. I never can remember to do that.....Dave
really enjoying your videos ,so informative and fun ! I have a Colchester Student lathe from 1965 ,still figuring things out on it !
what a wonderfull machine....The ghost from the past are also happy you restored there long ago beautiful engine
So Dave, now that you have 3 steam engines, do they all use the same pressure? If not what are the differences? Thanks for your keeping the past alive.
Hi Gerald, They probably all were designed with 125-150 psi in mind. The main thing is the speeds. The bigger engine with long stroke will put out a lot of torque at about 150 RPM, the O&S was called a "high speed" engine with square dimensions ( 5" stroke, 5" bore) so it would have been built to run 250-300 RPM. The Morris I haven't figured out yet. It really likes to run fast, it's also square (6x6) and close kin to a marine design so I figure it would be rated at 300 RPM....Dave
very cool, thanks for the video..
I love your channel. I get excited when you put up a new video. I love your workshop! Thank you David :)
Richard, hope you have A Merry Christmas and A Happy New Year.!.!.!.
Man that's nice, i can sleep beautifully with that sound ! I work with wood saws all day and it's far from soothing compared to this machine shop ! Btw never seen a folow rest conected to a cross slide, learn something new every day.
Thanks for the videos.
Neat natural lighting effect at 24:00 with the sun spots and dust motes, very dream like!
Love them old machines hope you can keep it up for another twenty years. Good luck from an old watcmaker
Great video Dave. The Morse Engine looks great. I really like that drill centering fixture plate. I want to make one..
another great video. i never get tired of seeing you make chips instead of doing infomercials for bangood. i like your center drilling fixture for the drill press. i made one years ago by cutting a v groove in the base plate with a half inch hole to use as a line up and clearance hole for the drill. i like your's better
Awesome! The shot at about 40:58 with the engine behind the drill press reminded me of something Rube Goldberg would have come up with!
Dave based on the run out on the thread on the vice screw I believe the thread was cut on a lathe with a "thread chasing" device, which uses a technique similar to a plumber's pipe thread cutter (which also have a gradual run out). These thread chasers ( in German gewindstrehler) take several passes and run at a demonic speed and produce a lot of mechanical noise, but they usually produce threads of very high quality and they are very reliable in high production settings. The added advantage is that once they are set up by a competent machinist the whole production can be left to an unskilled worker that simply replace work pieces and clean up.
Thanks Yann, You are probably exactly right. The story at East Broad Top Railroad is that the first job an apprentice was put on was the "bolt threader", making thousands of track bolts and studs....Dave
@@davidrichards5594 That's when I was introduced to them as well, running between two lathes trying to keep up. Those were that days when you didn't need to go to the gym after work :)
your videos are really beautiful. very nice. well done. I keep bees, and watching bees come in and out of the hive gives me the same feeling as watching this old steam driver flow along. Even the sound of the belt squealing is ok, but I like to listen to the engine running while cutting, as everything fits together that way.
watched it again, so so entertaining, thanks again!
If you can’t find the oil for the steam you can use “Filming
Amine”. Filming amine has tallow in it. It is injected into the steam system to
protect the steam and condensate piping.I lean something new every time I watch you videos.
Where can you get that stuff?..Dave
From a boiler water treatment company. Make sure you ask for FILMING Amine. Note: check with your local Hospital maintenance people they can hook you up with there treatment company. NALCO is one of the biggest and also $$ expensive. They use the stuff by the drum.Ed
Great video! Thanks for sharing with us. That is a neat drill jig you built!
Dave, the Morris looks great. Oh, and I like your center-drilling jig. Ingenious to use that to hold the V-blocks in place. Whether your design or someone else's, it's very cool. Glad to see you still in the shop even with snow outside. Happy Holidays !
Merry Christmas and Happy New Year, Dave. All the best to you and the family. I hope Florida is giving you a pleasant escape from the worst of the winter weather. Thanks for posting another great episode.
The close up shot of the tool cutting the square thread was excellent.
Great job!
Well done shes running
Thank you for yet another great video!!!
Nice work Dave . In my opinion as easy as it may look square threads can sometimes be the hardest to get right , Cheers .
Excellent work and part Dave, the drill press jig is pure genius. Thanks for sharing
I did a detailed description of it when I made it but I'm not sure which video it is, somewhere around #12....Dave
Hi Dave,
Just in case you haven't already found out, Google has moved up the end of life for its Google+ platform to April 2019 after finding yet another security flaw they don't want to fix. I'm going to miss it, but it seems like so many good things it will soon be history. Love your TH-cam videos. Hope Florida is good this year.
Yeah, but if there's money in it, they'l find something to replace it with...any ideas?
alternativeto.net/software/google-plus/
This is my first time tuning in. I love the old machines and your explanation of what you're doing in the process of machining a part. I'm guessing that your use of the marker to check your thread pitch was for the benefit of newcomers to the trade who may not have yet acquired a pitch gage.
Nice!!!!
Dave,
Nice to see your Morris engine finished & running ! Have really enjoyed your restoration / build series of the engine & all the machining that went along with it ! The screw cutting repair of the vise as well was most interesting & enjoyable to watch ! Thanks for all your time on making the videos & the work put into your projects ! Please keep them coming.
I hope 2019 treats you well !!
VERY CLEVER MAN LIKE YOUR VIDEOS KEEP EM COMING THANKS.
Well done Dave! I love your shop and all the work you do with vintage machinery and tools. I have a special appreciation for older machinery even though it was built years before I was born. The people who came up with the concept , design and building of all that machinery of the past were mechanical wizards. especially when you consider the technology and materials of the time. I would really like to visit your place sometime, it is a long way from Colorado though.
Ed, where in Co are you? I am near Loveland and have a shop of my own at the house with a couple of vintage machines. I'd be happy to have you visit sometime.
Paul T.
@@paulthompson5272 I live in Littleton and have a shop in my garage to primarily support my antique car hobby..I I
Very nice work.
Beautiful job.
Jim
Brown & Sharp my friend!
David. I very been with you from your first video. I always get excited for the the next one. WHICH IS GOING TO BE 50. WOW. So happy for you. I enjoy every one. Looks to me like you are staying in the shop instead of running down south this winter huh? I truly hope your having fun doing this. Merry Chrismas.
GREAT VIDEO !!
Nice job as always! Love turning work.
If thay used a large die to put the threads on that, It would have a tapper where it stopped !! And i would assume that if it was a production item they would have used something like that over using a lathe , to save time ! But i am a maintenance man and not a machinist .
Could very well have been an automatic head powered thread die like an isometric that opens at the end. They probably wouldn't have taken the time to cut the thread on a lathe....Dave
David Richards
My thoughts exactly. A die head.
That Morris is one smooth running little engine. Nice job.
How I missed something so obvious.. good idea!
It looks very similiar to a pipe threader type die. It would feed in full depth, at end of cut the die would open. The taper is just the lead into the dies. A cheap way to make screws fast with no skilled labor or expensive machinery
I agree, my first thought was it's made using a die. As he rotated it you could see the teeth marks where it ended.
Dave, It's a shame the Morris is knocking a little, a tough one to diagnose, sort of the enigmatic wrist-pin knock after an engine rebuild. Quite an interesting fixture for drilling you showed there, more than one way to skin the cat. Stay warm by the boiler.
So cool! I would probably get snagged in something on my first day haha.