Author Topic: The dynamo and the tu-tu  (Read 32238 times)

Offline zeeprogrammer

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Re: The dynamo and the tu-tu
« Reply #105 on: February 23, 2014, 02:16:51 AM »
Hi Carl

On something that small a couple three tenths is plenty for a press fit; one MM (.0394") are you sure. I don't know how you even got it started let alone pressed in with out breaking something.

Dave

Would my arm count?

I said 1mm didn't I? What an idiot. I'm starting to get mixed up going back and forth.
Reminds me of when I was taking my German finals in school. I got to the point I was translating my electronics finals to German and then back to English before I answered them.

Sorry. I meant .001". One THOU...not one MM. Given that...my question still stands. (Which may have been answered by Marv. I need to check his FITS program.)

Certainly...machining is not that much different from programming. It just takes one bit to be wrong.
Carl (aka Zee) Will sometimes respond to 'hey' but never 'hey you'.
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Offline zeeprogrammer

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Re: The dynamo and the tu-tu
« Reply #106 on: February 23, 2014, 04:37:47 PM »
 :zap:

Binding posts are shorted to the frame.
Not obvious. Brushes look fine. Got the insulators in.

Will have to take apart and do some further checking.

But not today.
Carl (aka Zee) Will sometimes respond to 'hey' but never 'hey you'.
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Offline vcutajar

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Re: The dynamo and the tu-tu
« Reply #107 on: February 23, 2014, 04:40:16 PM »
Following quietly your trials and tribulations.  Keep it up.

Vince

Offline zeeprogrammer

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Re: The dynamo and the tu-tu
« Reply #108 on: March 02, 2014, 10:57:41 PM »
Thanks Vince.

Well a quick check shows the short to be between the binding post and the bell. The insulators are a tad short and the bolt that goes through to hold the binding post is touching the bell. Or rather, it's not the insulator being too short as the bell is too thick. I don't see anything in the drawing that indicates what it should be.

It's not a simple matter of thinning the bell. Can't shorten the bushing anymore or the armature has too much play...worse, the commutators get to close to the bell.

Maybe I'll get hold of some plastic and make new insulators. Hm...another approach is to use a bit of heat shrink tubing. I have some of that.

In any case...problem seen. More than one solution possible. Not a bad scenario.

A lot easier to deal with than when T asks if I liked dinner.
Carl (aka Zee) Will sometimes respond to 'hey' but never 'hey you'.
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Offline zeeprogrammer

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Re: The dynamo and the tu-tu
« Reply #109 on: March 02, 2014, 11:23:47 PM »
Hm. Even easier may be to mill the bell from the binding post side. I've already mucked that up anyway.
Carl (aka Zee) Will sometimes respond to 'hey' but never 'hey you'.
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Offline Tennessee Whiskey

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Re: The dynamo and the tu-tu
« Reply #110 on: March 02, 2014, 11:31:25 PM »
Camera broke? :stir: :lolb:

Me

Offline zeeprogrammer

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Re: The dynamo and the tu-tu
« Reply #111 on: March 03, 2014, 12:32:30 AM »
Camera broke? :stir: :lolb:

 :rant:

Here's a little something that gets my toes tapping...

feature=player_detailpage

Unfortunately, at about 3:08 is a sad picture.

And then there's the line...

"Ain't no use in crying over what you had."

There's a part of the Ozarks I really miss.
Carl (aka Zee) Will sometimes respond to 'hey' but never 'hey you'.
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Offline zeeprogrammer

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Re: The dynamo and the tu-tu
« Reply #112 on: March 03, 2014, 12:37:24 AM »
And probably my all time favorite toe-tapping...

feature=player_detailpage
Carl (aka Zee) Will sometimes respond to 'hey' but never 'hey you'.
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Zee-Another Thread Trasher.

Offline zeeprogrammer

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Re: The dynamo and the tu-tu
« Reply #113 on: March 03, 2014, 12:42:39 AM »
Last one...I could keep going...

Listened to this back when I was looking for a girl...but she found me.

feature=player_detailpage

Yeah. I've had a stinking hoppie or two. Waiting for the storm.  ;D
Carl (aka Zee) Will sometimes respond to 'hey' but never 'hey you'.
"To work. To work."
Zee-Another Thread Trasher.

Offline zeeprogrammer

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Re: The dynamo and the tu-tu
« Reply #114 on: March 03, 2014, 11:28:29 PM »
Apparently no one likes my music. That's okay.  ;D

I got the short (that one) taken care of. I took the heat shrink tube route. Just cut an itty bit off, threaded it onto the bolt and done. I did mill away a bit more from the sides so the bolts would be a bit straighter. Looks much better now.

Then I hooked it up to a scope and gave it a flick. Hm. A bit troubling no?

Carl (aka Zee) Will sometimes respond to 'hey' but never 'hey you'.
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Offline Don1966

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Re: The dynamo and the tu-tu
« Reply #115 on: March 04, 2014, 12:09:53 AM »
Apparently no one likes my music. That's okay.

Then I hooked it up to a scope and gave it a flick. Hm. A bit troubling no?


Carl I like your music, but looking at your scope you only had 34MV output. You must of done a small flick. But the spikes are from the commutator bars. Remember your producing DC here so as it passes a bar you will get a spike in voltage. If you had a lot of bars it would be less noticeable. Nice job by the way I like....... :praise2:


Don

Offline zeeprogrammer

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Re: The dynamo and the tu-tu
« Reply #116 on: March 04, 2014, 12:23:40 AM »
Carl I like your music, but looking at your scope you only had 34MV output. You must of done a small flick. But the spikes are from the commutator bars. Remember your producing DC here so as it passes a bar you will get a spike in voltage. If you had a lot of bars it would be less noticeable. Nice job by the way I like.......

Thanks Don. Especially for the music comment.  ;D

Yeah...I'm not much of a flicker I guess. I'm either on or off.  :lolb:
Carl (aka Zee) Will sometimes respond to 'hey' but never 'hey you'.
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Offline b.lindsey

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Re: The dynamo and the tu-tu
« Reply #117 on: March 04, 2014, 12:42:00 AM »
Glad you got it sorted out Zee. It sure looks good. Nice scope you have there too!!

Bill

Offline zeeprogrammer

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Re: The dynamo and the tu-tu
« Reply #118 on: March 04, 2014, 02:00:44 AM »
Thanks Bill. I just got the scope. I use scopes at work quite a bit but I'm not familiar with this brand.
I've wanted a scope for home for a long long time but I wouldn't use one enough to warrant the cost of a brand I'm familiar with. This was a decent price so we'll see how it works out. It was an Amazon buy.
Carl (aka Zee) Will sometimes respond to 'hey' but never 'hey you'.
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Offline Doc

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Re: The dynamo and the tu-tu
« Reply #119 on: March 04, 2014, 03:03:40 AM »
Carl I won one in a 5S sale our company use to sell it's unused equipment but now have stopped doing. Got it for $2.00 don't know a thing about them I plugged it in and the screen lights up and seems to be working but like I said I have no clue. If the dam thing wasn't so heavy I'd send it to you. :naughty: