Metal Lathe Tutorial 7: Turning To A Shoulder
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- čas přidán 21. 12. 2018
- This is Lathe Skills, a multi-part series to help you learn basic machine shop work. Exclusive content available on Patreon!
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YOU REALLY NEED TO BE TEACHING THIS AT A VoTech or something of the sort. You are an AMAZING teacher!! You are taking bite size amounts of info so people don’t get overwhelmed and you explain it so well. I knew all of this up to this point but I am so enjoying watching and getting a refresher. Thank you for doing this. Can’t wait to see where the series goes. ❤❤
Speaking from an aerospace perspective, I would prefer the option to leave a small root radius on the shoulder and add a small chamfer to the mating part. This option would remove the potential stress raiser that is inherent to a sharp corner. As part of our design make meetings, we always ask the design guys to use corner radii that coincide with the radii available with indexable inserts. This makes life much easier for us manufacturing guys when producing the finished parts. Great video content and nicely paced narrative explaining each activity.
michael johnson makes sense. I was thinking about paying someone to make a lathe backplate, where I want a stress-relief radius, but don't know how to size it. Nothing will mate to it, so it doesn't have to match anything.
How would you size something like that? It's the transition from a 4" collar on the spindle to a 6 or 8" diameter flat plate.
Thanks
I'm just an amateur but I was thinking the same thing watching this. I'm sure it probably wouldn't be a problem for most things in a hobby machine shop though, so it's definitely useful to know in the context Quinn is presenting it, but I can imagine in your line of work any stress raiser geometry in a part's manufacturing could literally be life or death for anyone using the aircraft, missile, etc it gets put in! Out of interest, if your designers really needed to specify a fillet radius that didn't correspond to one of your standard indexable tools, how would you go about cutting it? I suppose it'd depend on the scale, but is it something you could build into a CNC tool path or would you need to create custom tooling with the correct radius?
@@yetanotherbassdude The parts I manufacture are for gas turbine engines (Rolls-Royce). If we have to produce a non-standard radius we normally opt to cut this using circular interpolation on the CNC machine. Alternatively, you could have a tool point ground to the required radius. We are lucky in some respects as being a large manufacturer, is that we have representatives of the major tool manufacturers permanently based on our site. This is very useful when trying to organise the manufacture of STP (Special to Product) tooling. The Sandvik tooling guys also organise trips to their manufacturing facility so we can appreciate how much technology they use when manufacturing tooling and tool inserts. I was fascinated by how they deposit the coating on the inserts themselves, I always wondered how they achieved that.
@@michaeljohnson-li5nn that's amazing! That's a heck of a job to have, and I can imagine you really do need to be completely on top of how you're machining or manufacturing parts for something as high temp and high stress as that. So is it just that you'd do a cost/benefit on how much machining time you can save with a custom tool instead of a circular CNC tool path, or are there material differences in the end product between a radius cut with a CNC pass versus one using a custom tool point with the correct radius that would make you choose one over the other? Also, you can't leave us hanging about that coatings process either! I did my undergrad in materials science, and even though I never really went into the industry I still find those kinds of materials manufacturing processes fascinating!
Looked into comments to find this comment. Sharp internal angles are the stress points. Not only in aerospace, I faced this even in construction. That's the frequent place where cracks can occur.
I think your videos are the best! Thanks for the help for us new to machining! Cute kitty too!
I think I'm watching these tutorials for the 3rd time. I don't use the lathe often so need the refresher from time to time
Thank you very much for your great videos. Your way and speed of explaining, together with your clear and calm voice are very close to being perfect for such tutorials.
Wow, i'm too starting to binge watch your videos !
Awesome! Welcome to my channel. 😃
Blondihacks you are very bingeable!
I am loving this series. I am new to using a metal lathe and am sure this series will lead to much more success than the hours of searching I had done previously!
What dummy would give you a thumbs down. I found you two days ago through the project you sent Abom79. I've been been binge-watching all of your videos for the last 2 days, your really impressive. Thanks for all the great instruction.
i agree im on a binge watching all of blondies videos as well and really enjoying them. im a hobby machinist and im picking up some real good tips and knowlage.
A fat finger is the only explanation !
There's always a few (7) dicks.
I used to think the TDs were a way to "tune the algorithm" to know what I wanted to see but apparently it doesn't work that way because I'm still getting "fashion" videos since my darling daughter spent an afternoon on my computer learning different ways to do her nails.
It's unfortunate that there's no way to tell CZcams "nothing wrong with this video, but I'm not interested." I hope that's all the TD mean and they don't hurt Quinn's "engagement numbers". I'm on my second pass through these videos. This time I have a notebook out and am treating them like a college class in home machining. I don't have a lathe yet, but I have a pickle jar in the shop labled "lathe and mill fund". Everytine I screw up and cuss at my stupidity, all the change in my pocket has to go into the jar. I'm about half way to a new lathe, close enough that I am actively looking for an older used lathe instead.
@@christopherdahle9985 that's nothing. I used to think algorithm was the former vice president trying to keep Time by clapping hands to the music.
Thank you so so much for producing these tutorials! amazingly digestible and well made! People like you are what make the internet so amazing for learning. Thank you!
Watched your first 7 'Lathe skills' videos consequtively. Now my dog is begging for his morning walk ! Loved the way you explained things and look forward to watching the rest. Thanks.
It's amazing how much I learn is such a short time
watching your videos
thank you
Subbed because the kitten told me to 😂....and because you explain machining so well 🙌
Got my first lathe a week ago (did a bit of lathe work in school over 15 years ago and was fascinated). Levelled/comissioned it today and started turning. This series has given me lots of the skills that are taken for granted and skipped over in a lot of other creators channels (no slight on them though). Thank you!
Do you still have your Lathe? Have you done anymore work with it? Do you have a channel or can you make some videos of your learning process? What kind of lathe did you get? Any advice for buying a lathe? I'm so lost when it comes to buying a used lathe... I had the same confusion buying a radial arm saw 2 years ago, as there are so many different models for sale... I learned that all the Craftsmans and the 1939 to 1969 Dewalt radial arm saws are good. Newer Dewalt radial arm saws have plastic pulleys and a belt in them. The machine work on a 1956 Dewalt radial arm saw... They are built like a complex metal machining tool.
I'm really getting alot from your videos. Thank you
New Sub here and beginner lather hand, I learned so much from your tutorial videos, thank you for sharing your skills
Hi Quinn - I am a longtime fan of Abom79 which is how I found your channel. I want you to know how much I enjoy your videos, you have a great voice, your explanations are clear and easy to understand, and you have a great sense of humor (I especially like the woodworking jokes since my father is a woodworker). Thanks for the videos and keep up the great work!
That's awesome, thanks! So glad you found your way over to my little channel.
Excellent tutorial, Quinn ! Lean, simple, neat, right to the essential points, and yet comprehensive. Bravo !!! 👏👏👏
I just want to thank you for this content. I'm wanting to buy a hobby lathe so I can make my own mechanical vapes as a hobby. I would be totally lost without this guidance.
You are an excellent teacher. Very thorough!
Another outstanding instructional video! Thank you so much!
Very informative. Good video.
Wow, the detail in your videos is outstanding!
These tutorials are invaluable for a complete novice like myself. Although as yet I don’t own a lathe. I am hoping to buy one in the very near future. Great video as usual. Keep up the good work. 👍
Thank you! Glad I could help! Let me know if there are specific topics you'd like covered.
My advice to you is to take your time in selecting a lathe. Look at things such as features, will it cut threads or not, does it have automatic feed, does it have a warranty, what are the reviews for support like. Also, you might buy one to learn basics on and upgrade later. I hope this helps
Thank you for the advice Robert. I have actually bought a lathe a few days ago. It’s a Myford ML7 built late fifties early sixties. Its a lovely old lathe that’s had very little use. It does everything that you mentioned apart from the warranty. Yes I’m going to enjoy playing and tinkering and looking after it. Thanks again.
Thanks!
Very good demo - thanks!
Enjoying this series and starting to learn new skills. Just picked up a Clausing 5913 and your videos are getting me up to speed quickly :)
Thank you!
Fantastic videos thanks for taking the time to do these .
Glad I found your channel your insight and knowledge is appreciated!
Elegant instruction.
Thanks Quinn
Quinn's got grit..
really good post.well explained. thankyou
articulate and understandable. Thank you.
Nice tutorial for beginners
Well explained, thank you.
i just got into macining so these videos are right up my alley. great stuff, thanks
Perfect- you're my target demographic. 😁
Very good video.
Like the parting tool tip and the cat.
ya got so many good videos
I usually turn the shank to within about 1 mm of the face, and than face the shoulder . Especially on big parts. On small parts it's more difficult, though. But I have never been able to get a finished shoulder surface using your method.
I do find your videos concerning lathe and mill operations most instructive, though. No chaff, clear, and up to the point.
AWESOME video, thank you so much!
Thank you for watching! 😁
Subscribed. You are incredibly knowledgeable and very articulate. I’m learning a ton, thanks for doing this
Thanks for the sub and the kind words! ☺️
that is very useful, thank you!!!
Love your channel girl keep up the good work, take care and stay safe, greetings from Co. Wexford, Ireland 👌🏻🍀🇮🇪
All good information and delivered at a pace that you can follow. You could give some tips to Mr Pete. Keep them coming!
Aww thanks! Mr. Pete is the greatest. I've learned a lot from him. 🤗
He is the Master!!@@Blondihacks
Damnit Quinn! Now your videos are like crack to me. Can’t stop watching them. What if I wanted to put a radius on that shoulder so as to avoid a stress riser? Maybe you could teach us that in a later video. A radius on the shoulder and a chamfer on the mating ring would snug up nicely as well. Thanks!
Yah, filets and chamfers that would have been a good thing to mention here. The short answer is that you use a tool with the desired profile on the left side, so that you end up with that chamfer/filet when you're done. Super glad you're enjoying my videos!
Thanks Blondie you cost me money LOL. I really like the Mitutoyo 2915S indicator you show here, my old eyes like the large .01 dial over the typical round one that is small and off to the side. I ended up finding one on Ebay in almost new condition, I have the PM1130 lathe and still have to make a ways holder for it, I have tried the magnetic ones but don't like the fact they grab all the swarf around the indicator plus they don't keep the indicator aligned at a 90 to the carriage. I still plan to put a DRO on my lathe but until then this will do.
That was great! When can we expect the 17 hour version that goes into more detail? 😁
Wow! what sort of a ratbag could give that a thumbs down? This old Tony fascinated me with his fingernails so like him I cut them just behind my elbows. Now I am completely flummoxed. What do you do? Drop yourself in a drum of swarfega? Amazing and a wonderful teacher so please keep at it.
In my experience, people who thumbs-down or trash other peoples' content have never tried to make content themselves. :)
Your cat is very opinionated that I should be subscribed.
She’s very opinionated on everything
Great series. Do you have a source for that indicator clamp mounted on the wave? Thanks!
Thank you very much, I am new in the field and enjoy your video. I have a question, [please. Instead of making passes till we obtain a final desired diameter, could we set a depth of cut from the surface and cut our workpiece. Thanks a lot
Can you set a zero on the carriage handle dial after facing so you know how far you will go to the shoulder? The indicator helps but I wouldn’t know where to move first. I know you would probably use something like a depth micrometer to double check that it’s the right amount, but it sure would help to have numbers on dials.
Hello gal. I'm not certain if I ever sent comment. I did watch your overall review sitting on your chair 💺 about your background. Next was watching your shop layout. How many square footage do you have? Thanks sharing your experience 😊...
Would you please show how to square your tool post to the bed of the lathe. Thanks
Newb here: the way the undercut is described it doesn't seem like it would remove the fillet. Also, using a parting tool, mine has an angle on it as viewed from the top, so you'd want the longer part on the chuck side, right?
Is the parting tool essentially making a small undercut to make that shoulder square? Otherwise, the cutting edges of the parting tool aren't perfect 90 degree angles, either, so wouldn't there still be a (much smaller) radius fillet there?
Question that I have is how do I stop the tool from running into the chuck jaws? I can see that that would not be good.
Great tutorial! Did you 3d print your own indicator holder?
Yep! 😁
Where can the indicator way mount be found ?
Please tell me how to turn one end of a 1" iron bar to a 60° sharp point. Thank you Blondi. Later I will buy your t-shirt. Thank you.
Good video! I see that you have selected the PM 2200 over the 1030 May I ask for your reasoning for this? Thanks Ron
Ron Bianca Honestly, just size. The 1030 is a little too big for my shop and the 1022 was a good fit. Both seem like great machines though.
👍👍👍👍👍
Dear Blondi do you have a tutorial on turning one end of a 1" iron bar to a point. Thank you.
I can't find any inside corner bits at LMS or Grizzly. I may have to learn how to grind my own.
The Grizzly set I link to includes one
@@Blondihacks Thanks!
Meow! And good human too!
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I’m new to lathe operations, so I’m confused about the comment about “single point” cutting. Clearly more than just a single point of the tool is cutting, the deeper the cut, the more of the edge of the tool is contacting the face?
Thats how i broke my first carbide tool in the first run , i had it Parallel to the showlder and engaged too much and broke
What! No maths?! Better go watch the feeds and speeds video.
Binging these the Patreon promotion does get a little repetitive, but thankfully it's at predictable, skippable positions.
I appreciate that feedback, thank you! My newer videos should be a lot better in that regard.
@@Blondihacks Great to hear!
It’s a tricky balance. Patreon is critical to the continued existence of the channel, and asking people for money does work (think NPR). However I don’t want to pester anyone either. ☺️
@@Blondihacks Makes a lot of sense! I think it is mostly a problem with a playlist like this. Hearing the same exact pitch word-to-word twice per 7 minutes, so once every 3.5 minutes, gets old quick and while one does learn the script word-to-word one doesn't necessarily like it xD
I have to tell you my wife thought i had a gf i said i show you who it is your rt. Then she said wow what a woman.