Shop Math --- How to Calculate Those 3 Fixture Pin Locations
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- Опубліковано 20 вер 2024
- This follow up video to the 3 pin fixture video, shows the easiest way to calculate the pin locations to suit 'Your' application. This is another good tool for the mental toolbox. A little geometry and trig and off ya go. Take a Look!!
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The birthday is yours but we are the ones getting the gift of having such a great teacher. Thanks so much for all the lessons, happy birthday and all the best!!
Happy late Birthday. Thanks for all the great videos.
I’m designing a jig for a wood guy project based on the last video and this one hits the spot! I have to get a screen shot of the diagram. It has everything I need! I’ll draw it up in my CAD system and it will go in the archive. Happy Birthday, Joe. And this time WE get the present!
Hi Joe,
You have a knack of making what seems to be a difficult topic very easy to understand. You and the family stay safe.
Why pick something so simple to explain? Why rush through it so fast? Why such a big smile? Ah Its Joes Birthday! Absolutely justified. Thanks and have a great day.
"I'll get engineering to give me the dimensions"
I can't tell you how many times I have stopped coworkers (younger) from doing this, and sat them down to show them how to figure out what is right in front of them on the print!
Great video, Joe.
Happy Birthday!
I've worked places where they didn't want that. They wanted engineering to give them the number and didn't want them relying on their individual ability to use a calculator and or chart and or do trig. They wanted the print to be pulled up and a distance given off the original file. I guess it was the whole potential of "too many cooks spoiling the soup" thing. I was the guy that had to give them the numbers. One of the guys anyway. One of the guys I worked with in engineering, the dumbest I might add, really acted like he was doing the machinists a big favor. I suspect he looked down on them even though they were FAR smarter than he was. Hell, some of those guys were FAR smarter than I was. When those guys came in to have me give them a number or when one of the die makers was running into an issue where something was done wrong somewhere in the process and things weren't going together right, I treated those guys like gold. I was happy to give them the number or sort out where the problem lied. They got to where they'd go out of their way to come to me. I'd get em the number of solve the problem and thank them in the end. That die maker COULD have sat there, laid out all the prints and did a bunch of math to sort it out but that file had already been checked...those number were already there because I drew them in 3d. I was the only detailer that did, that could. When I was done it could go straight to the CNC program or to the guy at the Bridgeport. And I was way faster than the guy that wasn't so nice to the machinists. When layoff time came who do you think they let go first? Wasn't me. I was a designer in a detailer position. But the point is that engineering had already been done. They already paid me to lay out the pieces and make the numbers work. Why have a guy doing trig in out in the dirty shop when the geometry is already drawn in 3d? And anyway, they knew if I got laid off for more than the standard two weeks I was gone. Another shop would snatch me up. Eventually they did. The new shop saw what I was able to and made me an offer that closer to what I should have been getting paid. The old company was struggling with the new situation where the US was allowing China to ship us COMPLETED dies, Cheaper than we could BUY THE STEEL to make them out of! When you have slave labor, nobody else can compete with you. The old company didn't have any choice really and it was a matter of time before the whole industry went away in the US. After about 10 years things weren't much better... I knew my career wasn't coming back at that point. Even if it did today I'm 20 years older now...I won't be getting the job. I'd love to go back to work in engineering but all this time guys have been out there racking up tons of student loans getting masters degrees in engineering to be a frickin draftsman! Even with no experience, THEY are getting hired. When things were looking good a few years ago I started looking again. The guys with masters degrees almost always got the call. The ONLY time I got the call was if they were offering nothing. I make more fixing cars on the side than I can made working in engineering right now! Pretty sad, I miss it!
@@waynethomas1726 I've been a toolmaker for 46 years, and the 2 companies I worked for would not issue an over-defined print. We were responsible for using the data given to us on the print.
A missing dimension was another story.
But I do see the trend developing of having a shop full of dependent button pushers that don't use logic or analytical thinking to get their job done.
@@jerseyjoe2684 Yea, I'm not saying either way is right or wrong. On one hand it makes sense to use the same information throughout the process without trusting many different people with different calculators and trig abilities to come up with numbers. On the other hand, as you point out, it made for most modern shops to be full of people who are button pushers that don't know anything or how to do anything.
Geometry and Math in general would be so much easier to learn if the lessons included practical application like this. Granted, not every kid wants to make stuff, but most people have interests that this can be applied to in some fashion.
or they could just offer a "shop math" version, where the same stuff is taught, but with shop applications for those so inclined...my fear is that few would be so inclined. :/ in college they do that with calculus and stats, you usually take the version for your major, and it is much better that way.
@@douglasharley2440 My ex taught math at community college for trades where the math had not application in high school but then someone needed to pass a test to be a journeyman or master but didn't have the math. I taught her the terms and gave her examples - roof with dormer and so on. She always used my name as the person making the changes. I was apparently not popular as the guy that kept making changes requiring more math.
Later in washington DC I had a neighbor who was involved with the school board and had been a teacher. I mentioned practical examples would help a lot of kids v.s. pure theory and he told that just wasn't true and kids would either get it or not. We didn't talk much after that.
@@danielboughton3624 i have friend who didnt understand maths at school, he went on the study law and became a solicitor but in retirement took up model engineering. I taught him some relevant maths which he understood because he saw the point in it. He said he wished the teachers offered real world examples. I goes to show the first lesson in teaching is engage the pupils interest and the rest will follow. Unfortunately maths teachers often love maths for maths sske alone and cant see why everybody isn't the same.
I'm an engineer and that is one of the most basic criticisms of ALL STEM education. Not just maths or engineering or science but the entire STEM landscape.
At one point in my post grad I was actually lecturing and tutoring 1st year mech eng dynamics. In that class there a couple of fundamental mechanisms and if you can learn them its almost impossible to score less than 80% on any test or exam.
Among them is the 4-bar chain and they way its taught is totally meaningless. Go look at any F1, Indycar or any other open wheel race car and that double wishbone suspension that's easily seen is a 4-bar chain. When you take it a bit further learning the 4-bar chain is the first step in learning how every car, truck, tractor, trailer, combine harvester, motorcycle,.... etc. in the world works.
That's just 1 example of these simple fundamental concepts of the engineering landscape that are incredibly badly taught and explained how important to our lives they are. These days I do electrical control systems and you would not believe how common it is to use things you first learned in high school like Ohms Law.
Its one of my main bugs in life is how poorly we teach the RELEVANCE of these basic things to our everyday lives.
@@tonywilson4713 What are the other mechanisms. I'm working with a fab shop part time after my IT day is done. My training was EE and Chemistry, and a heavy dose of ME and Welding. Statics, Dynamics, Strengths, Thermo.... But I never got to the point of application / lab / intersting of most ME stuff.
Joe, thanks for doing the "Maths"... as an Engineer I was fortunate to learn the practical side of Geometry and Trig while working side jobs through college building homes and in a sheet metal shop... we didn't have calculators or CAD in the field or the shop and had to run problems like this more than once. I learned a lot Geometry and Trig every time we ran into new situations and had to stop and do the "Maths". I've been side teaching at a Community College and I know for a fact that the guys who didn't learn their Geometry or Trig in High School actually start to 'get it' when we run through the 'Application Problems" (learned never to call them 'Word Problems' --- bad connotations there). OH, and Happy Birthday.
It's Sunday now so thanks for the information & a very happy birthday to you
Happy Birthday Joe. I don't know about you, but I'm going to start counting them backwards now.
This answered questions I had from the initial video I saw of you making this jig.
Happy birthday young fella.
Thank you.
Happy Birthday! Great Geometry Lesson for practical application.
Hello Joe thanks for the bell ring ! your content is just the best , i pass it on to
my friends and grandson now they check it out on there own. regards Skip
Awesome thank you!
Happy birthday JP! Hope you enjoyed it.
Happy Birthday Joe! Hope u have many more to come. This video brings back memories of doing algebra and trig in school but not really needing to use them in everyday life. Probably more so in ur profession of course. Thank u
Happy Birthday Joe and thanks for all the helpful videos🤗😎🤗😎
i thought i was going to have to raise my hand mr cotter but after the second go around it finally clicked. i think i would have understood it quicker if you had used actual dimensions and calculations in your illustration.i just turned 75 and i'm not ashamed to say i still have things to learn from a young whipper snapper like you. happy birthday and many more. thanks joe.
Happy Birthday Joe! Enjoy!!
Happy Birthday Joe, thank you for the videos
Happy Birthday Joe!
I always repeat to my students (engineers) : "Don't feel stupid asking questions... Better feel stupid in front of the class than in front of your exam... And there may be 20 stupider guys afraid to ask the same question..."
But don't argue with the teacher just before the end of the hour... Your fellows won't be that happy... Ask me how I know 😉
Maybe you could have explained how to get to the black dimension in case it is not on the print but need to be on the centerline on the part: radius of the part (not the pin) divided by cosine of the angle x (if it is not too late for my fuzzy brain...)
Happy birthday Joe! 🎂🎊🎉
I have learned so much from your videos! Hope you never stop sharing your knowledge.
Best to you on your Birthday,,I am sure you have a math formula some where that can turn back the clock ,,hehe! My 50th HS reunion was great last Sat, but the Acute Angle of the slope was more obvious than ever, and a lot our of classmates of '71 never got to see the top..I fill thankful I can still watch you and other great YT creators & teachers everyday and still learning,Thx Joe.
Thanks Bear.
On a side note; Hope you join in for Tool Fest 2021 (#toolfest2021) that Emma is putting on Nov 24th. I am looking forward in see what other creators will be building and showing off. Have a great day.
Happy Birthday! Hope the coming year is your best one yet!
Loved this video! Happy birthday! You’ve taught me so many tips and tricks and theories from these videos. Love everyone of them!
Happy birthday Joe, great lesson as usual.
Happy Birthday Joe. 21 again, with several years experience hehe.
Another great video. Thanks
Steve
To be specific, its the third anniversary of my 21st birthday.
@@joepie221 You certainly don't look it. I'd have guessed at aboit 50. Still a youngster. I've got 7 years on you.
Happy birthday Joe, wish I was 35 again! Thought I'd have an early night! What a hope, just watched the vid and now numbers and angles are racing round my head! Thanks for sharing it Joe, what a teacher. Regards from Wales
I love it Joe thanks and happy birthday from down under.
Happy birthday Joe…I wish they taught this practical maths at schools …maybe then kids will appreciate that maths has an application in the real world…love your work
👍 thanks for sharing and happy birthday 🎉🥳 Joe!
The Army believes in the same philosophy Sir. It's how we were taught everything. "See one, do one, teach one," then you really know it. Thanks for your great content.
Every day is a school day, an if you don’t learn something new every day you were not paying attention… thanks for another great video Joe👍
Happy birthday Joe, great video!
All day today - happy birthday; tomorrow - forget about it! Thanks again Joe!
Happy Birthday Joe! Thanks for all the great content! Can’t wait to see what little project is next.
Well happy birthday Joe!!!
Happy Birthday Joe!! Once again, thanks for sharing your knowledge, you make me less fearful of math lol.
HAPPY BIRTHDAY JOE! Thanks for the practical application of mathematics.
Happy Birthday Joe!
Happy Birthday Joe. Thanks for the details. Details are like zeros, they are important.
Happy birthday Joe. Have a wonderful day and thanks for your great videos.
HAPPY BIRTHDAY JOE!!
Happy Birthday Joe!!
Happy Birthday Joe.
Happy birthday Joe. Thanks for the refresher of FOM.
Thanks for the math. Appreciate the help and Happy Birthday on this Sunday, 9/19/21.
Thanks Joe. Happy birthday
Happy Birthday, Joe Pie! Wishing you many many more!!
Happy birthday. Thanks for the video.
Happy birthday Joe!
Happy birthday Joe!!
You are one hell of a good teacher. Ill be watching a lot of your videos seeing ass i just bought a collet lathe with DRO which is a bit above my skill level LOL thanks for all the great content !
Happy Birthday,Joe
Joe, great vid and Happy Birthday!
As my age advances, I am finding significant evidence of past rotator cuff injury on the left, and none on the right. You've given me a new theory to work with for why, and I like it.
Smiling/happy….cuz your annual b’day present is near😉😳😂😂😂…enjoy and thanks for all of the gifts you share
My pleasure Chuck.
👍👍
Happy Birthday Joe!
Thanks Joe. Of course I did not have it correct. I did not take into account that you want the bottom edge of the fixture plate to be in parallel with the face of the pin. From the home to the top pin center dimension is from the print, that would be where the hole needs to be on that face. So if the diameter of the part is 3/8" and the hole is to be in the middle of the plane as you stated in the original video, the dimension from the Home for the top pin I am calculating is .2165". Your dimension was .2248". I am not sure where I am going wrong. I have B set at 30' and a leg at .375". I calculate the hypotenuse to be .433". I then divided in half to find the center. Appreciate knowledge and Happiest of birthdays to you.
The video showing the actual fixture was done differently. For that fixture, the centerline of the first side pin was not aligned with the part theoretical corner. Thats a whole nother animal. This method is much easier.
@@joepie221 thanks again Joe. Hope you had a great birthday.
Happy belated birthday Joe! I wish you the best, stay safe, healthy, and prosperous!
Happy Birthday to the best geometry teacher, you go Joe!
I always use TAD - Trigonometry And Geometry....
Have a great day.
Happy Birthday Joe
Happy Birthday Joe! I do love the explanations of this kind of thing.
Thanks for the follow-up video to the pin fixture. This helps a lot, and Happy Birthday! 🤠❤
Happy Birthday Joe Pie!!!! I hope you have an awesome day. Always enjoy your content. Keep up the great work!
Happy birthday professor. Unloosen the tops on a few cold ones and have fun.
Happy Birthday from Al in Michigan.....
Happy Birthday Sir! Awesome example and the first minute had me cracking up!
You are one smart cookie, Joe!! Thanks for all your informative videos...!
Happy Birthday Joe, Cheers! Thanks for all you do!
Happy birthday Joe! Thanks for all the knowledge!
Joe, Thank you for the lesson. I always learn something new when I watch one of your videos. If it is one like this one or watching you make a part. Thank you.
I am genuinely glad to hear that.
Happy one Joe, Hope you have many more to come. As always outstanding information! TFS, GB :)
There you go with all that math again😁. Happy birthday Joe.
Happy birthday Joe. Thanks for all the great videos.
happy birthday joe! - frank
Love these shop math videos. Happy birthday Joe!
Happy birthday and thanks for the tip.
one year wiser. Another great simple lesson
Hey Joe, happy birthday!
Enjoyed the video. We need more Joe Pi videos.
This is so weird...6:45 pm sun I am bookmarking 'Solution of Triangles' in Machinerys Handbook. Then 7:10 pm I am eating pizza and see your vid.
Happy belated birthday Joe!
Thanks for sharing!
Happy Birthday Joe! Mine was yestrerday :)
Virgo's rock !!
Happy Birthday Joe! Thanks for another great video.
Happy birthday Joe! Thanks for this video - a nice and simple "don't over think it" for placing pins. I'm quite good at geometry but it took a few watches for the bit about the first triangle to click, as the drawing was so out of scale and I was very confused by the mysterious and seemingly giant R! Once I noticed you saying it was .125 I realized the drawing was NTS just for illustration purposes, oops. Might be useful to call these things out explicitly for people like me who are currently drinking their first coffee of the day... ;)
Happy Birthday!
Happy Birthday Joe, I hope you have a great day.
Happy birthday Joe P.!🎂
Happy birthday! Thanks for the lesson! 🇨🇦
Happy Birthday! I am confused with what the centerline dimension on top would be. I get the other math but i d not get how you would get the centerline numbers
This would be the cosine of the angle cut times the radius of the pin.
Happy Birthday Joe! Mine was Friday, I don't feel any older though lol
Happy Anniversary of your 25th birthday! :-)
Happy birthday. Cheers
happy birthday!...thanks for giving _us_ a cool present.
Great video Happy Birthday
Happy Birthday! Thanks for the gift! Wait- something backwards here! What the hell, don't look a gift horse in the mouth. Keep on teaching.
Thank you
Happy b-day young fella
Happy early Birthday Joe! I’ve enjoyed your content very much!🙏🎚🇲🇾🇲🇾🇲🇾