Hey Joe just wanted to say your channel and videos have literally changed my family’s life and we are so grateful that a channel and person like you exists on this platform. A year ago my wife and I had our first kid and money was real tight my old job just wasn’t cutting it and we were facing eviction. I always found machining interesting but just did not know where or how to start absolutely no experience. After watching a few of your videos I knew this is exactly what I want to do. You made it all just make sense to a point that I thought there’s absolutely no way I can’t do this if I just listen to what joe is saying. I walked into my local shop and asked for a job. Started as a helper and now I’m a key holder at the shop making pretty good money. My family is absolutely secure which just makes my whole life complete. I do all the manual lathe and mill work for our shop thank you for your videos. Wouldn’t be in this position without ya THANK YOU JOE!

These are why I love your videos. Even someone machining for years can learn something.

Clear as Mud! God I wish I’d paid more attention to my Granddad! He was a Machinist, tool and die maker for GE. And I’d listen to stories, theories, and outcomes! He would draw diagrams just like what you showed in your videos! Brings back some good memories, but also turns the lights on from what he was saying! Keep them coming!

I'm not a machinist, don't own a lathe or a mill. I have a keen interest in it all though and after watching many channels on the subject on youtube, I really like your style of teaching. Your 'quick and dirty' methods on many things have made understanding some of the finer points much easier. I like your style of teaching and explanations. very concise and clear, well at least to my brain. Cheers Joe from Leyland, England

I have done this work in the past quite a bit in the small sizes smaller than a half inch. I've got a small set of champfer checking gauges which, I bought in the 1980s when, I first started doing precision machine work. They are invaluable for checking the depth of the champfered hole as well as the width and angle. One has to make certain that that the location of where the champfered hole is going to be placed is very accurately located because once the champfering is completed there is NO redoing a mistake. It is done, at the correct angle, properly finished according to set speeds and feeds and one knows all this before the work progresses. I've done a few angular machining jobs such as your lathe ways but more times I set the vise onto the milling machine table at the correct angle and machine the conic sections. One can accurately machine this way and if needs be go over the milled surface with grinding wheels with a surface ground finish. Your technique is excellent; the lathe is coming closer to finish.

The ball in the chamfer measuring method reminds me of 3 wire method for threads. Similar concept. Awesome videos Joe, thanks.

Thanks for that Joe . I have been a toolmaker for nearly 40 years and I have never seen this described better , I am sure it will help lots of people . As for trigging it out for different angles, I get it , but I think a video on that would be opening a whole new can of worms . Cheers Ade

Mr Pie Your attention to detail is an inspiration for us all All love to you and yoursfrom UK

Thanks joe, I literally take notes from so many of your videos. In-depth theory videos like this help me more then anything.

Outstanding. You explained it and you showed it.

Joe, this type of content you make is incredibly useful, interesting and helpful. Thank you so much!

Once again Joe you showed me something I never even thought about. Wow!

Great presentation. I got the gist of it, will have to view a few more times. Recognize the thought and effort you put into these vids. The props and illustrations are very cool and helpful. Thank you.

Thanks so much for all your work on this and all of your videos. I really like the wooden chamfer tool with the flat point. That makes everything very clear. I was mystified when I saw you make the lathe bed, but now I understand what you were doing.

You are such an inspiration to all, love the explanation and accuracy as you described. Thank you so much.

Your videos are by far the best, very methodical in your approach and your generosity in sharing your knowledge is well appreciated

Using a "500 ball for gauging the width of the hole is pure genius! I have no trouble with the math, but that idea was not something I would have thought of.

There is so much to learn and absorb from this entire process. Thanks and much appreciated.

Excellent,Joe.You never know where you may end it up by adding a sharp tool and a sharp brain.Very enjoyable.Thank you.

I learned something new today. Not that it will serve a thing, probably, but it trains my mind and opens up answers to questions never made 😊

Loving the machining principles and, because I’m English, appreciating the maths. Excellent stuff Joe.

Thanks Joe for the amount of effort you put in your videos.

Masterclass. Thanks for your contributions to systematic machining accuracy. I served an apprenticeship about 45 years ago (moved up through study soon after), and I learn with every one of your videos.

Joe, I wish I had been following you and seen this about a year earlier as I was doing 1/8" radius CNC cutting in wood using a so called "Point" cutting bit, and it took me a number of failures prior to realizing what was going on. Being an electronics Engr. all of my woodworking and machining comes by being self taught. "Learn by doing" methods. You explanation was clear and better described the issues than the reasoning that I had to painfully discover. The radius cutting was the last operation I was doing on wooden purple heart and rosewood gears with a DP=16. Thanks for taking your time to video your work and provide such useful information.

Hi Joe, love your geometry lessons, love all your theory and the accuracy that you work to. Great engineering.

I learn so much every time you make a video; thank you!

*fantastic video.* this kind of work you do is so interesting; combining logical reasoning, math, tools, and hard work to create precision manufactured items. thanks for showing us how a true professional does it! looks like you are stepping-up your youtube game too!...loved the cardboard tool mockups, slick diagrams, and pre-done math. lol, everything was so clear even _i_ could understand it. ;) dope camera-work too, that super-fine edge for visual registering was so cool. kudos!

Hey Joe, its 05:22 Wales time, you are killing me, won't sleep until about Monday now trying to understand this ha ha. Thanks though, so much to learn and you are making it easier for sure. Regards from Wales

Excellent straightforward explanation as usual Joe, thank you. I will admit I’ll prob need to rewatch a time or two to fully grasp and remember it all but that’s my thickness not your clarity lol. At the end thought you’d just sneak in rather than in and out, old wood worker here who always tries to sneak up on my lines lol but then thought about it and you were making a valid point so then understood your methodology. Again, thanks for sharing your experience and expertise with us Joe, even having to watch your videos upside down, I come from a land down under . . . you are still always precise, simple and easy to follow so more power to ya mate. Take care and stay cool and thanks again 12 out of 10 😎👍

A really nice one, Joe. And again, Math is Your life saver. To all who sit in school, saying "math sucks, what do I ever need it for?" This is another good example. Love the trick with the ball ! Regards, Frank

Joe, Your use of trig makes me glad I took trigonometry in high school 40 years ago. I have used trig all my life but your explanations of usage brings it to a new level. I don't have any problems understanding you. Excellent job explaining how to apply trig to new applications.

You make something that seemed extremely difficult into something anyone can do. Thank you!

That was a master performing this demonstration folks! When explained in this way it is so easy to grasp the principal and to be able to incorporate it into your own working environment. Thanks Joe that was brilliant!

Joe, thank you for all the work you put into making this video. Great explanation.

as always there's never a time I dont learn something when watching your videos man. You definately know your stuff brotha. I had forgotten all the math involved sometimes. I hand make stuff so often that when i watch your vids I really miss milling and lathe work. lol! Not sure what the wife is gonna think (or if I even care. lol!) but im savin up and getting a small lathe soon. Hand made items can be impressive when everything turns out right, but man is it time consuming. and frustrating when you spend hours on a piece and it doesnt finish out correctly, then ya have to do some calculating and figure out how or if it can even be corrected. sucks to scrap a project after 20 hrs on it. I would love to turn my own screws and pulleys and stuff though! lol! would make things easier. amyways great video man! another HIGH FIVE!

Very insightful. Have a great weekend Joe.

Another great shop Gem Joe I am pretty sure everyone agrees too. Thank you for your work very much appreciated.

I needed this tutorial! Great content. Thanks Joe!

Great video. I was overthinking it! Thank you.

I do a lot of chamfering at work but it’s usually 100 degrees and my limit is .004” on diameter so as you know it’s not much to work with on depth. You explained it perfectly joe.

If we just had more teachers like this the whole world would be a better place.

Congratulations to Mr. Moore for his work ethic and job. Thanks so much, Joe. I too learn so much from you and love the practical application of Geometry!

Excellent tutorial!! Your demystifying more of the approaches to machining features. Thank you so much! Great job

Joe thank you very much. Many blessings to you. As a new machinist apprentice making my way in this industry, your videos have meant a lot and have been so helpful. Thank you for going out of your way and helping people in this world. God bless you!

Thanks Joe. I've puzzled over this exact problem on several occasions. And gave up! So I ended up just using one vee way and a flat bed way alongside.......... I cheated!! The ball and the math, I now need to remember. Much appreciated.

Excellent video, your instructions are clear and concise, thank you

This information is gold for young (or old) tool and die makers. Dont be the guy to grind and check, grind and check, grind and check...... Us a ball or a dowel and trig it out. It takes way less time and You will rise above coworkers who do not practice this.

Another great exposition Joe - much I would never have thought about! Wish my DRO was a 'smart' one. Thanks for your work on this. :)

Wow! That was excellent! Very good use of visual aids. Interesting and clear and useful. What’s not to like?

Thanks for the video Joe.

extremely informative yet again, I likely forget most of it untill I need it, but Iwill remember where to find the information

1 or 15 more times and I might be able to come up with a question. Thank you very much I learn something every time I watch your videos. It may not be what you’re teaching but nonetheless I do learn something

W O W ! My head is spinning. What an insight, Thanks, Joe

Thanks Joe you are amazing at this

thats what i was looking for . thanks joe

Loved the ball trick haha I literally posted the last comment 30 seconds before you mentioned that in the video haha

Thank you very much for taking the trouble to explain this so thoroughly - I learned a few things! :)

I love how your throw out practical stuff you know beginners will screw up. “Don’t come down on it or you’ll chip the tip.” Perfectly said. This is why yorr videos are worth watching more than once.

Good video. I do think qualifying the assumed angle is important. I’ve seen too many people measure chamfers and countersinks assuming 90 degrees and it was 82. Yes you might be able to see 8 degrees but it’s tough seeing small errors that can project into great ones

This was always tricky when doing manual. In the CNC world with the guys using CAM, you can generally punch in your flats and other geometry right into the tool library and it'll figure out all of the properly offset toolpathing for you. Makes chamfering so nice and easy.

Rolling a pin under a cutter is so much better than banging the edge of a gauge block against it!

Outstanding video! Thanks!

Thanks Joe. That was very interesting from beginning to end.

Thanks Joe, you just answered the question I was going to ask 😁😁

This was very useful. You explained it really well too. Thankyou!

Another good one Joe

Great video! I've been wondering how to do this 😊

Hello Joe, Great video... I learnt a lot... thank you... Take care. Paul,,

I stumbled across this looking for something totally unrelated and it kept me up most of the night. I really wanted to know how important the size of the ball was, and at what point your math would fail. My son came in and it turned into a lively father/son debate. It was fairly simple once we wrapped our heads around it all. So... if our math is correct, for this to work, the ball diameter has to be larger than half the hole diameter (inscribed circle calculation), and smaller than the square root of half the diameter squared (pythagorean). This means the ball would have to be between 200 and 564 diameter or it would be below the surface or sitting on the lip. It's probably obvious by just looking what size ball is appropriate, but you inspired me to use my rusty math skills, and because at first I thought the ball was just sitting on top, and your calculates were fatally flawed, but I was wrong. Thanks for inspiring us to use our brains, and great video!

Thanks for sharing!

Observation, an under rated ability. Thanks for the look.

Thank you Joe.

Thanks for the lesson. I find there's a lot of ways to cut it, but only 1 right way.

Joe you are the man

Excellent very educating. Thank you very much.

Liars can figure but figures never lie.. I really enjoy ur ability to explain math and your knowledge of angles and geometry. You are one of a kind! U should have a t shirt-- In a perfect world! Thanks Joe

Many thanks for the tips.

Always a good tid bit of how to make it happen the correct way. Math like this gives me a headache now, LOL. At one time it was a breeze but after using addition and subtraction for sooooo many years I am sure glad I kept all my grade 10 and 11 notes etc. Study them a bit and hope not to face that particular problem for a good long time again, LOL. Thanks eh. Looking for the next post on the lathe project now. Take care eh. Oh yea, I just made a friend a set of center punches from my supply of Gr 8 bolts as a gift. I realise how inexpensive a set is but as he said there is nothing better a gift than home made. They harden up easily and should last him a lifetime or more.

Hey Mr. Joe where were you when I was in high school. Some people can't teach, YOU CAN. Thank you sir !!

whew!..4am before coffee watching this lesson...🤯🤯🤯....please know I did learn....thank you !...ATB

Joe, great as usual. A little while back you did a video on production parts using the model 48-000 Edge Multi Axis stop. It is great quality but I'm not sure if they produce it for machines using the 1/2" 3/8x16 tee nuts as the 48-000 uses the 5/8" 1/2×13 thread, but you probably already know that it is easily adaptable to the smaller mills without changing the architecture at all. When it came and I realized the t-nut difference I thought about the options for a few, dug around the bins I have and found a 1/2×13 socket head grade 8 bolt 2"× 2-1/2 " long.

You got yourself a new moto: “If You don’t know ... trigure it out”. Great stuff for its simplicity.

Thank you Joe. How about some content on Patreon? Maybe something like the day to day operation of the shop. Employees, jobs, how do you make it through the day and stuff like that. Let us viewers rummage through your tool boxes via camera thing. I'm not a machinist. I'm a retired big truck and mining equipment mechanic. I have used portable tooling to machine engine blocks in chassis. My dad and grand dad worked for Cleveland twist drill. Granddad died in 1960. CTD actually closed the factory so everyone could attend his funeral. The only employee of the company that has ever been honored like that. My dad lasted until Acme bought them and closed the plant. Then he worked for a small job shop that catered to the airowspace industry. Mainly NASA. A tool grinder in a shop that consistently measured parts to the millionth of an inch. I was never allowed into the shop. Your work fascinate me.

You don't need me tellin you how awesome you are. But I'm gonna say it anyway. Thank you Joe!!

Thanks Joe

The numbers you came up with agree with what I see at work, most Harvey 45 degree cutters have a 0.010 flat on the tip.

Yes, makes sense to me. Thanks

How can someone give this a thumbs down, unless they fat-fingered the button?!!! This was another outstanding video! Very useful! Be well & Best regards, Gottfried

I've been working on a benchtop optical comparator design for these types of scenarios at home instead of having to go to work to find diameters on spot drills and whatnot. Something simple and small that will give a decent accuracy.

Awesome stuff. I was wondering how you did it when you showed cutting those rails.

Joe, working in industry for decade's in and programming CNC machines I made a bunch of hardened setup rings for my operators mainly for 90 deg spot drills which always have a flat. A disk .250 thick, bored hole .250 diameter, no burrs or chamfers, touch the tool down on your disk hole and you know where your at, +.250 (for disk) +250 (for tool depth), set you offset.

This helped me learn why you minus the flat on a bevel at the very least.

Hi Joe, great demonstration. I always used to use this method until I did my time on CNC. I now just ignore what is going on at the point and set the tool from the O/D, this way if you use several chamfer tools on a bigger job you can ignore any variation there may be at the points. Hope this makes sense, I may post a tips video on this at some point as it is another way to skin the cat. Cheers, Jon

Thank You !

Awesome! When you have time in the future, could you refer to your thoughts on using a center drill or a spot drill to start a hole in different circumstances. What is the real effect of when the starting angles do not match? Why is the center drill okay, or desired, in most of your spotting operations? Thank you, have been really keen for a while on your thoughts regarding this matter.

The nose flat is also dependent on any run-out of the spindle, collet, etc. You could have a perfectly sharp point, but the run-out will give an effective flat of some diameter. There is always some run-out, though you might not notice it until you are measuring to sub 20 millionths of an inch.

Very usefull, thsnk you.

Thank you

Okay, that's two new ways to do it that I hadn't thought of. My approach has always been to just move the radius of the nose flat for the away from the edge. For example, if initially you were going to move 0.050" off of the edge, and the nose radius is 0.010", then move 0.060" off the edge instead. That way you're hitting the edge of the cutter at exactly the same distance from the corner. For CNC, you could probably just put the nose radius in as a negative cutter comp number. That's essentially how I handled it in a CAM software plugin I wrote for doing engraving with a v-type cutter.

Joe's great illustrations using basic math (trig) should encourage people to take those math courses in school. If you didn't, trig courses are available on line. Simple calculators, the calculator on your computer and Machinery Handbook can all supply Trig tables. Beyond counting fingers, toes and the extra digit, Trig is the most useful math. The internet has proven to be one of the most useful things ever. You (can't) thank Gore for that.