8 replies to this topic

[dc-65x]

This a great resource for any builder and interesting reading for the vintage enthusiast. Although the magazine article is dated Jan 1973 with magazine lead times of the day we are talking about mid to late 1972 here. In the continuing "End Bell Saga" you will note that Lee is using a "Big Bearing" end bell that still requires the shims to center it in the can. I wondered about this until I recently saw a British export B-motor with the big end bell bearing. Mystery solved.

I hope you enjoy the article as much as I do. Gota go now. I need to dig out my copy and build some motors!

[proptop]

Thanks Rick...great stuff! Informitive and entertaining.
I got a lot out of it...including eyestrain
Think I need glasses though...been squinting thru the whole article

Lee Gilbert has a certain writing style, aye?! 8)
I especially like that last little bit...the quote from Bill Steube Sr.right at the end...

[dc-65x]

Glad you liked the article. I know the pictures are kind of small. I sized them to 640 pixels wide. I think that's what they want on the forum????

[Foamy]

some nut with a weird car that passes yours down the straight

Is he callin me a nut? :shock:

[orangecrate]

Alot of these articles are timeless, even if they were written 30 - 40 years ago can still use the information. I also model railroading and have bought many of the model railroad magazines from the 60's, 70's, 80's etc. The articles are timeless and to see what the prices were back then. I had alot of issues of the slotcar magazines from 1963 to 1967, my mom threw them out while i was in the service. Thanks for posting this article on motor building.

Orangecrate

[proptop]

Don't think it's the size of the pics Rick...I think it's my orbs. Oh well... :roll:

Ya know, the talk in the article about magnetic flow and can design is something that has interested me for a long time.

I look at some of the new thong style cans and wonder just what the flow is like in or thru them? I know that they're obviously going for light weight, but is that at the expense of optimum magnetic flow pattern around the arm?

I don't know exactly what I'm talking about here, but I'm pretty sure you know what I'm trying to get at...

I know a little about magnetic flux lines and eddy currents, etc. but I wonder if there is a site or animation somewhere that could illustrate what actually (invisibly) happens when a single phase D.C. slot motor runs?

[MarcusPHagen]

Don't think it's the size of the pics Rick...I think it's my orbs. Oh well... :roll:

Ya know, the talk in the article about magnetic flow and can design is something that has interested me for a long time.

I look at some of the new thong style cans and wonder just what the flow is like in or thru them? I know that they're obviously going for light weight, but is that at the expense of optimum magnetic flow pattern around the arm?

I don't know exactly what I'm talking about here, but I'm pretty sure you know what I'm trying to get at...

I know a little about magnetic flux lines and eddy currents, etc. but I wonder if there is a site or animation somewhere that could illustrate what actually (invisibly) happens when a single phase D.C. slot motor runs?

Back when my real job involved programming computers that used magnetic tape, you could get a liquid which contained very small metal shavings. It was used to show the actual "bits" on the tape when you couldn't get the drive to read the info but really needed to know -- or were just curious! I've always wanted to do something like that with a piece of glass and a slot motor. You could take pictures of the force lines in various dimensions. I'll have to see if I can find that stuff. It was a LOT finer than regular metal chips from a hacksaw, but I suppose that could work as well. Just so you keep the metal on the glass, and out of the motor.

[Prof. Fate]

Hi

So, you never had a "Fun with magnets" set?

Fate

[proptop]

Never had a "Fun with Magnets" set but I did have one of those things where you put the "hair" and mustache, beard on the bald guy?

Marcus...that sounds like an interesting idea...putting a motor (running and/or not running) under a sheet of glass and sprinkling iron or steel filings to see what the pattern is :!: 8)

Rick...sorry man...don't wanna hijack the thread...I'll clam up now