Setting the Lathe compound to precision angles
2024 ж. 15 Мам.
305 175 Рет қаралды
This video will show you a technique for setting up your lathe compound for precision angle cuts. This is an excellent way to get your angle settings within minutes of the desired spec.
we are so lucky to have you on KZhead, a lifetime of knowledge in a few hours , thanks a million
I just used this technique today to cut an internal taper with a 3 decimal precision callout! Thanks Joe.
At last someone succeeded in explaining me in a comprehensive way why I had to learn all that trigonometry back in highschool allmost 35 years ago. Thanks and greetings from Belgium.
this one trick is worth trillions of hours of work. thank you so much
Hi, allow me to say that you are the ONLY one that makes videos where someone thinks: "...exactly this I wanted to know for years". thanks for sharing your knowledge. The day that you will come to Florence let me know, I will show you my city and we take REAL Italian coffe ;-) Take care and stay save
I'm ashamed to admit this, but I'm still going to... I did not know this method. It's so simple! To those people who are having trouble grasping it, watching the video while standing in front of the lathe is a good suggestion that someone else mentioned. Thank you, Joe!
Oh that was very clever indeed. To quote a New Zealand saying, “you really do know your onions!” I am super impressed. The only thing wrong with the whole approach is that I did not think of it..Bravo! Not only that but exactly the same trick will work with my mill. Double winner! Thanks Joe.
Glad you enjoyed it!
Gee Joe, it is with great interest that I watch you channel. Even though I won’t ever need this information, for this ‘ol maintenance engineer I certainly do admire you and your approach/application to a situation such as this. 👍
Another piece of simple trigonometry. No expensive sine bar, no even more expensive gauge blocks. Thank you! I learned trig a million years ago in a third world school. I had the world's worst math teacher. So I found the Barnes&Noble College Outline Series on trig and taught myself. Then I taught my buddies and that cemented it in my mind. Trigonometry is the machinist's best friend. Nowadays there are online aids to learning it, such as the Kahn academy, and whether you use a book or online, every machinist should learn it. At least the rudiments. It is not necessary to learn the identities -- just how to solve a right triangle.
I agree 100%. Basic geometry skills are also a good compliment to this. Thanks for watching Juan.
I had to smile about the engineer comment. I was that engineer who couldn't understand the machine shop constantly asking if I really wanted it that size? It was during a previous life when I was designing wire and slick line equipment here in Aberdeen Scotland. Admittedly it was half a lifetime ago so I think I may have learned a bit since that time. Thanks for the pointer from the machinists point of view - and the memory.
I've contributed to the final part from both the shop floor and the keyboard, so I feel qualified to make that comment. CNC machines are a different animal, but manual machinists need tips like this to keep them sane. I also taught a course on design for manufacturability to University of Texas engineering students. I was amazed at what they didn't know. So were they. It always went very well. Thanks for the comment.
That's great. Personally I'm a CNC guy. But watching these videos in you channel helps me on the manual lathe and mill for small projects around my shop. Keep them up. They are very helpful. Thank you for taking the time to show it step by step. You are a great teacher. Two thumbs up!!!!
Thank you.
Hi Joe, your content is a little advanced for me at this point. It took me a whole weekend to machine 8 levelling feet for my lathe my first lathe so small steps. However even being a novice your presentation was done in such a normal way without you needing to pull out the technical terms and language that for us novices make you sound like a brain surgeon and goes straight over the top of our heads, you have a way of conveying a circumstance that is understandable to many, thank you. Your clearly putting it out with a genuine desire to help not to stroke your own ego.
Show and tell channels are fine, but I really try to leave my viewers with something to take away, think about or expand on. Thanks for the comment.
I'm an engineer and this is why engineering students need to spend all their free time in the machine shop. That 44 minutes on the degree just cost the company 20 minutes in additional set up time, and potentially a lot of scrap for less capable machinists. My other pet peeve is engineers tolerancing everything to +/- .001" because they can't / won't do a tolerance study or don't understand fitments. I'm getting off my soap box now.
Wrong,... if it was zero minutes, and the tolerance was the same,... it would have been no different.
Daniel Wahl, only partially.
Amen brother! Ive told numerous engineers that they should come out in the shop and attempt to do what they ask. Its not an easy thing to do on an engine lathe. I recently had to cut a 7.2 degree angle on a mandrel on a manual lathe and I made the engineer come out and see my setup so he could realize how difficult that can be.
Even better when you ask for a part to be made within .005 and the machinist makes it to within .001 and charges extra
Yes, as a journeyman machinist of 40 years myself, I couldn't agree more with you. Adding a fourth zero to the right of the decimal point takes everything to a whole never level of stress for the machinist.
I love this one Joe! The way you break things down helps so much. I find I was over thinking this issue and your explanation on the board and then in the shop got me on track. God Bless you bud. I agree with the vast majority of your subscribers that your an excellent teacher and I feel personally blessed to have found you. I'm 46 starting again since being disabled and you truly inspire me. The classes I'm taking plus all the other videos have left me more confused. I understand you better than anyone and I really thank you for what your doing. I'm proud to call you one of my instructors. Tim Ditmore Matrix Gunsmithing Lake George, CO.
Thank you very much. Glad to help.
Hi Joe, thank you so much for your videos. As a 65 year old I regret never taking any trigonometry classes. You break it down and make everything seem so simple
Well done, I was sent to class today. Just when I think I'm making huge strides, I have so far to go.
Joe, I used this technique last night in order to set my compound cut an precise 8-degree taper for an ER11 collet cavity for a holder I made. Worked like a charm! Here I thought I would need to go and buy a sine bar to do this but with a little math and your technique I saved some much needed dough! Much Thanks and keep up the videos. This is priceless knowledge that you are choosing to share and I greatly appreciate it.
It is amazing how much you can learn in this trade. I haven't stopped learning yet. Joe, your videos are just great. Keep up the good work!!
Stumbled on this video on 12th July 2023 just in time for making accurate angles on mating parts. Thank you, Joe for all of the incredibly clear advice you've given for so many of us over the years. Long may it continue!
Glad it was helpful!
Great tutorial Joe, I have watched it three times and appreciate you sharing you knowledge. all the best from the UK
A very elegant technique! Good clear and concise explanation. Keep the videos coming Joe. I'm learning so much. Many thanks Paul
Excellent explanation of setting a precise angle of the compound! Thanks for sharing!
I cut a JT33 taper with this technique and it worked perfect! Thanks for the tip!
Great tip. Practical trig application. Fantastic explanation helps demystify the complexity of such a complex part. Thanks again, Joe.
Thank you, Joe. I'm making an ER32 collet holder for a D1-4 spindle and this tip allowed me to cut the angle in the holder that mates to the lathe spindle. Thanks again
Excellent. Such a simple solution I wish I would have learned years ago! Thank you!
This technique came in very handy. I had to make bevel gears on an old Cincinnati universal miller. Great job Joe!!
very clever! I love the simplicity and logical approach.
Great video, very informative, its like a master class of tips and tricks for machine shop setups,can't wait for more.
What a great review of my plane geometry class of 59 years ago... I loved geometry and still love it!!!
Excellent series! Your practical tips are gold for a hobby machinist like myself with just a couple machines in my garage and no professional experience.
Joe, I used this method today (to cut a precise outside angle) and it worked perfectly! Thanks!
It took me 3 times listening to your video to understand, but I got it sir. You the BOSS! As always, I enjoyed watching sir
Its great joe,in the beginning it was a little difficult, but as i stand by my lathe and repeat what you explained,suddenly it become clear to me. Thanks a lot for your time , and i hope you will go on to help us.Again Thanks Hans, from Holland
Oh my - so simple when you know how! so many thanks Joe for passing on this invaluable knowledge - Going to try this on my 70 year old Myford ML7 Also thinking of trying to make some angle gauges, we will see. Again many thanks and best wishes to you and you family.
And my trig students in school did not think there was any value to learning the functions and their application. I am now retired but If I was still teaching, your video would be my teaching tool.
Its a hard fact that machining needs a strong base in geometry and trig. At least it makes it easier if you understand it.
Trig is always the answer... what an eye opener this info was when I began machining. It all started by asking what a Sine plate was for... Then the explanation, then Jo blocks, then confusion, then a million tests and now I use trig all the time. Thanks for the info.
My son asked me the other day what good is trigonometry, now I can show him, thanks
Brings me back to my high school trig days. Great explanation.
I just used your technique and it was spot on! Thanks Joe!
Excellent geometry/trig application. Much appreciated.
Thanks for the trig refresher and application tip. Look forward to your next video
Joe, you are a great teacher! Thanks!
How about that, you never stop amazing me Joe. just looking over your stuff, this is in my top ten. No trick just very clever thought out work.
Used this method to set to bore 1.5" taper per foot for wheel hubs on hydraulic motors. Worked great and very easy to set up. Thanks!
I feel smarter because of this! THANK YOU!
You are awesome . i have been working with Lathe almost 25 years , and still learn everyday . all I can say that you are the best .
Great video. I love it. When I need that kind of accuracy I usually indicate along a sinebar. Very precise also and rules out leadcrew inaccuracies. Works in milling machine too.
I've been trying to get a 1.4 degree taper on a hardwood sprue using an old Lesto Scintilla with a removable cross slide, very tricky, but your method produced results on the 2nd attempt. After sanding smooth and a sawdust polish, the taper was measured at 1.409 degrees. Thanks for the time to make this video, its much appreciated.
Thank you for your confidence to give it a try. The method can yield some amazing results on a manual machine.
Thanks Joe for the trig refresher. Even better, you demonstrated its application on the lathe. That tip is a gem for setting the compound. Thanks again.
SUPER accurate!
Thanks! Useful and informative, as always. Love your lessons.
Joe thanks for sharing your knowledge and taking time to make this video.
Very clear easy to follow. I am not a turner, but I enjoy every one of Joe's videos theory and practical and no unnecessary chat.
Thank you.
Thank you very much for sharing your knowledge and publishing the videos! I am just a bloody newbie and your videos have helped me immensely. Your videos are clear, concise and very well presented without any annoying babbling. Basically, you taught me via youtube. Thank you! Bernhard
I spend a lot of time using trig (soh cah toa) for mill work. That is one great tip for lathe work!! Sure beats the eye loop! Thank you for passing on your knowledge.
Beautiful. I LOVE it when practical trig shows up. I still believe most kids would get trig if they had a lathe and a mill to work with. AND a good, clear, teacher like you. Thank you!
Thanks for the comment. This trade pretty much demands a base understanding of trig. Its like any other tool in the box.
I cannot thank you enough Joe! Master Artisan in action.
Thanks Joe, very informative as usual and as expected of your presentations. Hope you're recovering from your recent taste of winter.
Nice one Joe! I was looking, because I need to do an outside tapered bushing for a project. My dimensions are much less critical, but the measurement quite simple! Tested in a mini lathe on bronze for practice, then did a full 304 SS version. Wonderful. Now, just have to cut threads.
Another great tutorial Joe. Thanks very much.
Hi Joe, I'm new to your videos, I'm self taught what I know about machining and your informational videos are excellent, this last compound angle video is one awesome idea, just what I needed to cut some morse angles. What I want to say about figuring angles is get that construction master calculator and with the run/ rise/pitch/diagonal functions you can figure those angles so fast and easy without getting into fancy geometry stuff. Thanks again for making life easier when cutting precise angles.
Thank you! Very well explained and easy to follow along with the method 👍
We need more like him, with experiance and history to teach our youth. Because those who have potential will instantly understand what he is talking about and soak up the knowlege. And i'm not talking about machinist class, i talking about math class
Thank you.
Joe, I am not a machinist but I love watching this type content. I want to thank you for taking the time to create these videos explaining not only the how but the why. You have the heart of a teacher and the ability to convey in understandable terms the concepts and techniques involved. Michael
I appreciate the compliment Michael, Thank you.
Terrific (and easy) method Joe, I've written this out in my notebook, one to remember for sure!
Its super accurate.
Thanks guy! I'm a home hobbyist and I got an RFQ that included an inside taper at 10.62*. I wasn't sure I could even quote the job 10 mins ago. Cheers!!
Absolutely love your videos Joe. Thanks for sharing your knowledge. Always grateful.
My Pleasure Charles. Thanks for taking the time to comment. Stay tuned. More good stuff is coming.
That was super good info! This is going into my my keeper list. Thanks for the video, JB
Thanks J B. Stay tuned.
Great lesson on how to apply trigonometry to the cross slide and the compound using the graduated dials. This video was a breath of fresh air!!!!! Thank you.
Thanks for watching. Try it out.
Thank You Joe!!! Excellent technique!
Hey Joe, good stuff. I really appreciate your videos like this one. You present well and it is refreshing to see tips from someone with current, relevant practical experience on KZhead (in contrast to so many sloppy home-shop guys like myself). I practiced with this technique and was able to hit my chosen test taper spot on. Thanks!
Outstanding. the bigger the triangle you use, the greater the accuracy. thanks for trying it and thank you for the comment.
This old post just became relevant to me now, glad I have a good reference.
Holy shit, I've been in Toolmaking for years and all the guys who i've worked with don't know this. Fantastic!
I made aerospace valves for many years. This technique will get you within minutes of your desired angle provided everything else is correct.
Of course, squareness and runout to be checked... I tell ya I learnt from one of the best Toolmakers out there in the field and worked with some good ones, thought I had learnt all the tricks of the trade... 70% of your videos are either i don't know or are quirky and improved versions of what i know... It's rare to find 1 vid that taught me let alone a dozen.. For the maths side I use solid works sketches and draw circles and tangent points i know it's abit pathetic and requires no mental power but hey, technology
Thanks for the comment.
Awesome Joe ! So simple it hurts ?! Love your classes
This is especially useful when trying to mate components machined previously. In the past I have had to make sure I did not disturb the compound slide setting between machining components which can be a nuisance when the operations do not follow each other. Keep up the good work, much appreciated.
I have been toying with the idea of single point cutting a rifle chamber using the info provided in these conical feature videos, leaving just a few thousands for the reamer to clean providing a perfectly concentric bore. I am not pioneering this processes, I just wouldn't have the confidence without you. Thanks Joe
Thanks for the positive feedback. I am glad to help you guys.
this was like the clouds parting and the sun shining through - brilliant and thanks for such a simple concise way to hit crazy angles. awesome.
Thanks for the comment. Glad you liked it.
digging through your vids now, subscribed, learned more in the last 30 minutes than the previous week. from California. gotta get outta here...
Thanks Joe for another excellent tips video. I am sure i speak for many people in that we greatly appreciate these, there are few places this sort of information can easily be found - especially for us home shop machinists that have not had formal training. Keep them coming :)
Glad to help.
Makes those angles a lot less scary! Nice and concise too.
I was a carpenter for 35 years back when we use to cut roofs, before premade trusses. (roofs are all angles). This is exactly how i use to figure angles/lengths,rises, diagonals . If you buy a construction master calculator, which i used for years, this will all be extremely simplified. On the calculator there are three keys called run, rise and diagonal (the three parts of a triangle). You can enter as fractions 1-1/4, or decimals 1.25, or metric 31.75 or whatever. The amount of weird angles on all the different pitched roofs with hips and gables and interrupted angles and so on are endless. Greatest tool ever invented for us dumb carpenters.
Some of these shop calculators require the user to convert the minutes to a decimal before they can proceed. 31 degrees 22 minutes is not 31.22 degrees. I've seen some of these lead guys down the wrong path and confuse them more than help them, but if you are used to using them, I'm sure they are a real time saver. I'll stick with my book. 40 year comfort zone.
Hi Joe, Thanks for another great video. Learning lots from you Many thanks Max
Thanks Max. Glad I can help. More to come.
Super useful tip Joe. It's fantastic to be able to use math for calculating angles that precisely!
That's what all that trigonometric math in high school was for however, the proofs in Geometry class, I didn't need. Again, thank you very much for the lesson.
I have to admit, I loved those proof tests.
Joe, you are pure gold! This is the BEST! Thanks again.
Thank you. You are very welcome. Glad I could help.
This is some good stuff... I've used gage blocks and indicators before to trig out the angle, but never once did I thought to use the tailstock as a reference. This is gold for me. Thanks Joe!
Check the tailstock and stay near center and your angles will be incredibly accurate. Be sure your tool height is equally adjusted to center for the best accuracy.
You earned another subscriber! All your methods seem to be very, very good. I appreciate that you spend so much time explaining these so that anyone can do it. Thanks!
Thanks for the comment and sub.
Great setup and the use of trigonometry on the lathe.
Very simple method! Excellent!
Joe you have some seriously useful videos online. Thanks a lot for that!
Thanks for watching. I hope they make your jobs easier.
This was way over my head , but I enjoyed watching it , I can tell you know what your talking about, Loved your video on threading away from the chuck. I haven't ran a manual lathe in 30 years but I'm about to retire and I'm going to buy one just to play with. I will watch all your videos for a refresher coarse .
Thank you.
Your a grand master, something else I would of never thought of.
Just made my second internal morse taper using your system. Works a treat. Thanks for sharing your experience with us. Good on ya mate.
Great to hear!
Nice one glad I'm not the only one who think that about the odd engineer. Very timely for me as I had been considering the very problem. Thanks for your time and passing on the knowledge.
Thanks Will. This works great.
Very clever approach. Just be aware that its accuracy relies on your tailstock quill surface alignment with the spindle rotation axis. Any wearings or dents on the quill surface might set your taper off.
Am I ignorant to think that this approach to cutting an angle doesn't rely on any alignment other than accurate measurements? I'm new to machining. How precisely can a 90 be measured. And if the 90 is true, you can make any angle right?
Measure the part not the tool? Am i wrong?
Excellent presentation! Thank you.
wow that was awesome, i never thought i'd be able to use that crap from school in any real situation!! that was good knowledge right there, thanks!
Very clever! One could use this idea many different ways. Thanks.
Thanks. I'm saving this URL to return and watch it again so I don't forget. HAPPY NEW YEAR. I am former water and abrasive jet operator, now retired.
Best channel on youtube on the topic, just second to none. Thank you for doing this
Thanks for the comment. Its a solid technique.
Thank you Joe, it took a couple of views to understand. Now I can't wait to go and cut my #3 Morse taper.
Wow! Incredible piece of info. Thanks for sharing.