Hi Keith! For many of us retired mechanics/machinest's ,.... our get up and go has got up and went!;... but our minds have not gone away! We see our selves back in the shop doing work similar to what you are doing!; and many of us have a work shop at home. Sometimes you show us "this" is how I do it on MY MACHINES!.... IT may be different, but we want to arrive at the same result. We are ALL WAY"S learning, and your skills and math are teaching us that there is all way's a different way to "skin" a cat! Love your Video's, and hour long video's would be welcome! HAPPY HOLIDAYS...GOD BLESS! Gary

@millomweb

2 жыл бұрын

I think 30 minutes is ample !

When I was much younger, I worked in a small custom heat treat plant, the owner operator had a Doctorate in Metallurgy, I used to call him "Doctor" all the time and he would tell me to stop it :) "How long until that last batch of M2 is quenched" Me: "About 35 minutes, Doctor"

One of my favorite sayings in the shop is, "need a tool, make a tool" this is a great example. Thank you for sharing.

We always used a piece of ground round stock to set the taper attachment. Chuck it in the lathe, make sure it's running true and use an indicator to dial the attachment in with that.

@paul5683

2 жыл бұрын

My boss would have chewed my ass if I had wasted time making a a taper gage. An indicator on a piece of drill rod would give a precision taper a 100 year old band saw would ever need. Personally l would be more concerned about the quality of the matching bore in the the wheels of the band saw.

@philliphopkins6527

2 жыл бұрын

You've got a DRO why don't you use it instead of wasting time and valuable tool steel

@thecanadiantradesman7916

7 ай бұрын

​@@paul5683think of this as a learning video for someone needing a taper Guage for something they do ,for instance someone trying to make multiple parts and needing a accurate and repeatable reference. Not something necessarily needed for this job but nonetheless it's a good learning experience for when it makes more sense to take the time to make one

Certainly one way to approach the task.

Great video as usual. I want to wish you and your family a very Merry Christmas. Thank you for the years of wonderful videos.

WHEW! I read a science fiction short story about a machinist who was called on to repair an alien space ship. He had to make the tools to make the tool that then made the tools that repaired the ship. My head is spinning. With every video I am even more impressed with your knowledge, skill, and craftsmanship.

Really fun project! One tiny suggestion. Magnetic fields love to close on themselves. You might get a bit more grip if you installed the magnets in alternating directions rather than all aligned.

@stephenoffiler8024

2 жыл бұрын

I noticed that too. Alternating N-S-N-S across the piece would give a noticeable increase in grip.

@cedaramateurastronomersinc626

2 жыл бұрын

Agree

@ElectricGears

2 жыл бұрын

The physics/math behind that: wikipedia.org/wiki/Halbach_array

@leeklemetti1887

2 жыл бұрын

@@stephenoffiler8024 I noticed that Keith placed the magnets down and turned the magnetism. I hope that he had the proper magnet direction to match the mag plate or he would have damaged those small magnets. Altho he probably did it right. If he had set them in N-S-N=S every other one would have lower magnetism.

@ElectraFlarefire

2 жыл бұрын

While that would help a lot if the magnets are right next to each other, or they are in a non-magnetic material(ideally with a backing plate), in steel with such a large relative spacing for the size, each would be in it's own little shielded area with all the field lines shorted, I seriously doubt it would make any difference how they were installed. Remember: They follow the lines of least resistance, just like electricity. You can use that to your advantage to control where and how the fields behave.

This is Bill, our phones are in my wife's name, so I always come up Marla. Love your videos. Thank you for the time you put into making the videos. I'm glad you are feeling better, know that you were in my prayers. Again thank you for making the videos.

Merry Christmas to you and yours Keith! Regards, Duck

Merry Christmas to all.

Nice to see you up and around Keith. Merry Christmas.

Good job. But you made a minor math error. Thankfully, the angles are small enough that the error isn't significant, but it is a fundamental error. The taper of 3/32" per foot means that the *tangent* of the desired angle is (3/32)/12 = 0.0078125 The 10 inches you mention for your sine plate is the hypotenuse of a right triangle, not one of the two perpendicular sides. So the correct thing to do is calculate the angle using arctan of the tangent calculated: arctan(0.0078125) = 0.447614171 degrees. then calculate the sine of the determined angle sin(0.447614171) = 0.007812262 and finally, multiply by the 10 inches for your sine plate, so 0.007812262*10 = 0.07812262 Now, as you can see, the difference between 0.078125 and 0.07812262 is insignificant. But the reason for that is because the angle for your desired taper is so small, so the sine and tangent values are close to each other. If you were using a larger taper, the the differences become quite significant. For instance, if the half included angle was 5 degrees, then doing the math would result is a difference of 0.87488664 vs 0.87155743. And 10 degrees would be 1.76326981 vs 1.73648178.

@ricko5123

2 жыл бұрын

When you think you're all alone and then BOOM, someone else sees it that way!!! Great one John and it's gratifying knowing the island has a population..lol.... Happy New Year John!!!

@kevintheilen9643

2 жыл бұрын

Thank you. That's what I was thinking in my comment, but I was not as thorough.

Good to see you back in the shop and 'healthy.' Nice explanation of the current project and a lovely shaved yak at the end of the video.

MERRY CHRISTMAS.

Merry Christmas Keith and your family.

Hope your Christmas has gone smoothly Keeith.

Merry Christmas to you and your family.

In dan gelbart's shop tour, he showed off a heat treat oven that used a methanol drip to get the inert atmosphere, sounds a lot cheaper to run than an argon purge.

Thanks Keith, Merry Christmas

Thank you Keith. Merry Christmas.

Thanks for all the videos this year, Merry Christmas to you and your Family.

Merry Christmas and a Healthy New Year!

Great to see a tool being made for a project. Have a wonderful Christmas 🎄

Merry Christmas to all. Thank you Keith for your Videos

Merry Christmas, Mr. Rucker.

New subscriber here, already a big fan. I'm an engineer doing practical shop-floor process work at a small tool manufacturer for 25+ years now, and I'm still learning some cool new stuff. I did not know that a specified shaft taper on a print is based on *included* angle. I have never seen a taper micrometer. Nice little oven! I need one of those. Re: heat treat foil, glad you remembered the paper. I always tap down my folds lightly to crease them and seal better (but clearly yours worked fine too). Re: grinding, I always use a piece of scrap as end-stop on the thrust side of the workpiece so it can't get spit off the chuck. And a couple times you freaked me out with flesh and bone WAY too close to a spinning wheel. Your spindle bearings must be excellent and you can't wait minutes on end for it to stop - in that case, I'd move it as far away as it goes.

@russkepler

2 жыл бұрын

I'm always very careful around grinding wheels - a moment of inattention and the wheel can take some meat off. It's happened to me a couple of times, only once leaving any scar that's just made me more cautious.

@Ray_Sellner

2 жыл бұрын

I looked or this comment. I always shut off the wheel and wipe the table. Of course, Keith has experience, which I didn't.

Definitely my favourite type of video, thanks Keith. May I wish you and your family a very merry Christmas and a happy, healthy and prosperous new year. Here’s to another year of brilliant videos.

Excellent video and the best in craftsmanship! Good explanation of the taper calculation too, thank you. Eric

Thank you Keith. Merry Christmas to you and yours.

Hi Keith. Thank you for all the videos you have made this year. Always interesting and useful. Very much appreciated. Merry Christmas and all the best wishes for you and your family in the New Year

Merry Christmas to you and yours this Holiday Season, Keith. Thank you for taking the time out of your life to make these videos that so many of us enjoy and thank you for sharing a part of your life with us.

YAY! Progress! May you and yours have a very Merry Christmas and Happy Holidays!

Keith, little kids in school ask why do you need to learn math. This video is why. Very interesting

Dear Keith, this is so informative.....I have never had experience with surface grinders as I have never been around them..... as close as I got was a Bridgeport mill and a grinding wheel......thanks so much for showing how to get that angle..... that surface came out fantastic.....cheers, Paul down in Orlando

Super fun. Thanks. Merry Christmas.

Keith you do an excellent job of explaining the process of what ever you are working on. Thank you for that‼️

Thanks for sharing and Merry Christmas 🎅

Well done. Glad you are back up and running.

That taper micrometer is a very nice piece of engineering. Very cool.

Thanks for sharing Keith and Merry Christmas.

Keith, always interesting. Merry Christmas and a happy new year. Great to see you feeling better.

Nice Video, Keith... Thanks for all the entertaining and educative videos this year. A Merry Christmas to you and your loved ones from The Netherlands.

Thank you for sharing. Happy Holidays☃🎄☃🎄⛄

Merry Christmas

Always quality informative presentations.

thanks a lot for all your videos last year. thanks and "make X-mess great again" from hamburg/germany matthias

High Keith I have watched almost all of your Videos and have learned from them and enjoyed them also. I send My wishes for you and family a Merry Christmas and a Happy New Year.

Merry Christmas Keith. thanks for the christmas eve video!

Thank you for another great video. I love that thompson. Merry Christmas and best wishes for the new year.

Merry Christmas Keith do you and your family

Great way to start my Christ mas Eve morning, a VW video, thanks Keith. And to your family and everyone elses reading this, hope y'all have a merry Christ mas.

You are so blessed...

Merry Christmas, Keith! Stay safe and healthy.

Merry Christmas to You and your family Keith!

Excellent! Really nice project! Merry Christmas to you and yours. Looking forward to future installments on this and other projects/

I enjoy your work Sir! MERRY Christmas and a happy new year 🙏💖🙏

Merry Christmas and happy New years to you and your family

Merry Christmas Keith, Thanks again for your great help on my Reed Prentice lathe, which is working great BTW.

Small note on neodymium magnets: they will start to demagnetize at 90C, however unlike older ceramic or steel magnets are pretty impervious to shock.

I wish you and your family Merry Christmas.

A very merry Christmas to you and your Keith.

Hey Keith, HAPPY HOLIDAYS! See ya next year! Greg

Very cool. Have a Merry Christmas

Thank you for the informative content throughout the year. May you, your family and the shop cats have a safe, healthy and a Merry Christmas.

@garys9694

2 жыл бұрын

The shop dog too!

Thanks for sharing!

Marry Christmas Keith, to you and your whole family! Good health too!

Merry Christmas Keith and Happy New Year!

Wonderful, and new to me. You are making me competent and careful.

Yet another informative video, a true Xmas gift from the ever-interesting Keith Rucker.

I wish I had your dedication! Merry Christmas to you and your family.

great video thanks for sharing Merry Christmas

That's what people don't understand when you do a job sometimes you have to make a tool to fix a tool, great video Keith, keep'um coming..

Merry Christmas Keith! Thanks for the vids!

good job keith

Merry Christmas Keith, thanks for the awesome video :)

Great video Keith. Merry Christmas to you and your family

Merry Christmas Keith!

Merry Christmas to you and your family and to my fellow viewers!

Another Keith video! Must be Xmas. May everybody be happy and safe.

I enjoyed that. Thanks!

Merry Christmas Keith , thanks for the video 👏👏👏🥃👍🇬🇧

For future reference,denatured alcohol will easily remove excess epoxy from surfaces.Just a little on a shop towel is enough

pretty cool jig , I like it,...be aware with those little rare earth magnets when even the smallest scratch breaks the nickel plating ,...they disintegrate , rust , rot , turn back to earth,...maybe some nail polish ,poly, , no biggie , just watch for it , they will expand and it wont sit flat ,...Mike

MERRY CHRISTMAS TO ALL, GREAT VIDEO, SEE YOU NEXT TIME, GLAD YOU ARE BETTER...

Merry Christmas from Berri, South Australia.

Beautiful work. Merry Christmas 🎄 keith

thanks KEITH MERRY CHRISTMAS

Very Nice Merry Christmas

Good work :) About the magnets: I've worked quite a bit with neodymium magnet holders, and if you want them to last you need to be careful when machining close to them. If you break the nickel (most Neo magnets have a thin NiCuNi plating) Neodymium oxidizes very quickly, and very deeply. Oxidized neo loses almost all of the magnetix strength :/

Keeping true to the motto: Need a tool; make a tool 👍 Hey, Merry Christmas you and you family. And Lord bless you all in the coming year.

It may not be a part of the rebuilt bandsaw but it is certainly something you need (want) to rebuild the saw plus it's something that you may use in the future so definitely worthy of a video. Merry Christmas Keith.

Merry Xmas everybody

Merry Christmas Keith...

merry christmas

Hiya Keith

Merry Christmas Keith : )

Keith, I was thinking about you the other day. I was at the scrap yard, and there was a pair of line shaft pulleys lying there. I wasn't sure if you would have had a use for them, but unfortunately I didn't sell enough to buy them, but I'm sure they could have been sold online or at our local Rough and Tumble History Society flea market in August. If you didn't have a use. Some time ago, I bought an axle with a pair of Amish steel wheels on it from another scrap yard, and a guy from NY state bought them out there for $50. Nice tool that taper micrometer. I've not seen one before, but I don't go out of my way to buy them.

You could also use forming gas (5-10% H and 90-95% Nitrogen) in the oven. Not only does it protect the metal but it will reduce oxides at the same time. The level of Hydrogen is low enough to be safe . . . with proper ventilation. Check the literature for flow rates.

That’s a lot of work just to get ready to cut a taper. Can’t wait till the next video.