Author Topic: The dynamo and the tu-tu  (Read 29491 times)

Offline zeeprogrammer

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The dynamo and the tu-tu
« on: February 03, 2014, 09:34:18 PM »
Made you look.

But if you're here for the latter subject you'll be disappointed.
You are welcome to add your own appropriately related posts to this thread. I'm sure they will be appreciated.

As for the former subject...well you might still be disappointed.
It's the PMR Dynamo. Well known. Done and posted thousands of times.
But this one is mine and therefore unique (even if I have to add a tu-tu when finished).

I've been sitting on this model for nearly a year. I'd had big plans for it but not having had time to do any machining for so long I decided to simply make it stock. One of the ideas I'd had was to make a small diorama. The top of the dynamo has a real bad parting line and I was thinking of making a tiny catwalk to go across with a ladder coming up. Some HO figures, a few boxes, maybe a wall...you get the picture.

But job, daughters, daughters' animals...LIFE!...has been in the way and I don't know how much time I have available.
I need a hit of oil so I'll just do what I can do.

So to make this more interesting...come one, come all. Post a joke. Take a jab. Sing a song. (Keep it clean.)

So here's a pic of what you get...

A frame casting. Well made except for the parting line on the top.
Shaft and brush end aluminum castings.
A pre-built armature.
Magnets, bushings, couple of bits of metals, brushes, screws.

Now I need to remember how to post pictures. For that matter...to take better pictures. Sorry about that.





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 #1 on: February 03, 2014, 09:41:50 PM »
So you may have noticed the frame has already had some machining done.
My first mistake was not taking the family picture first.
(Or was my first mistake joining this forum?)
Additional mistakes to follow.

Here's the base milled...



Boring. First time I've used this tool. At least with any success.
I used the 4-jaw and indicated the sides and top to get as centered as I could.
I was a little concerned about tilt but placing a parallel on the base seemed to show things were close enough.
It came out well.



I had a picture of facing one end but it was so out of focus there was no point.
This one isn't much better.



And this is no good either.
Drilled the holes for the mounting. You can see one scribe line that was off.



Next step is to spot faces the other side of the mounting holes.
I'd hoped I had a countersink but the 1/4" I need has too large a pilot.
The shaft of a 1/4" end-mill is too big to get past the frame.
Guess it's time to sacrifice a 1/4" drill bit and grind it down.

That's it thus far. No idea when the next installment will be.

But at least I got a little dirty.
Carl (aka Zee) Will sometimes respond to 'hey' but never 'hey you'.
"To work. To work."
Zee-Another Thread Trasher.

Offline b.lindsey

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Re: The dynamo and the tu-tu
« Reply #2 on: February 03, 2014, 09:45:48 PM »
Nice to see you getting dirty Zee :)  Its a great project that you will enjoy I'm sure and you are already off to a good start!!

Bill

fcheslop

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Re: The dynamo and the tu-tu
« Reply #3 on: February 03, 2014, 09:47:54 PM »
Nice to see you getting back in the saddle you know getting dirty is the only way to go.
Good luck
best wishes
frazer

Offline mklotz

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Re: The dynamo and the tu-tu
« Reply #4 on: February 03, 2014, 10:23:57 PM »
It's great to see you back, Carl.  I've missed your humor.

Re cutting pads and need for confined spaces cutter...

Go to Lowes or similar and look in their Dremel accessory cabinet.  Try to find something like this...

http://www.micromark.com/1and4-inch-straight-bit-for-dremel-trio,11408.html

or their straight wood router bit or their multi-tooth 1/4" cutter.  Dremel is very proud of their accessories but you might find something similar at HF or the like.  Remember, cutters meant for wood will work just fine on aluminum.

The alternative is to grind down the shaft of a 1/4" mill but that may be beyond your patience and equipment complement.
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Offline zeeprogrammer

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Re: The dynamo and the tu-tu
« Reply #5 on: February 03, 2014, 11:41:36 PM »
Thanks guys. I really appreciate the comments.
Marv..."I've missed your humor"...ah the pressure. I'll do my best.
I think this was on the other forum...but in any case...just wanted to say I think about you just about every time I come into the shop. Hard not too when there's this...



All I need is some decent needles and a recommendation for a 'doctor'.

The dremel idea is a good one but the shaft may be a little short. Typical.
I do have a counter-sink that fits. It's 0.2 diameter. A bit short of the 0.25 but I'll have to (want to) make the nuts anyway (for I have none).
Think it's a problem to use a a slightly smaller 0.2 nut for a 1/8 bolt?

Say...do any of you have this problem? I apparently raised my daughters as friends. So today I got this...

Youngest is driving back from California. She's in Albuquerque right now.
Driving back with boyfriend. He got a speeding ticket. Now their engine light is on. And they're driving into a snowstorm.
And her stupid cat keeps trying to get into my shop.
She's on her way back to move in again.

Oldest is in London. Just got a job with the same company I work for.
She had dinner with the president of the company tonight. They talked wine, he stole her fries, and I was mentioned.
And her stupid dog keeps trying to get into my shop.
I just got her out of my house but she seems to show up every weekend.

I'm 5 years from retirement and I can't get rid of these boogers.
I'd be happy to unload the cat and dog.
At least with the kids I can say 'get it yourself' or 'flush your own toilet'.

Hm...a preview reminds me I need to remember how to make the photos smaller.
Carl (aka Zee) Will sometimes respond to 'hey' but never 'hey you'.
"To work. To work."
Zee-Another Thread Trasher.

Offline vcutajar

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Re: The dynamo and the tu-tu
« Reply #6 on: February 03, 2014, 11:52:22 PM »
So, when this build is finished, will you be showing this famous photograph? :ROFL:

Vince

Offline Tennessee Whiskey

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Re: The dynamo and the tu-tu
« Reply #7 on: February 04, 2014, 12:12:04 AM »
Ok D head, tell your youngest to enjoy a life setting moment, tell you're oldest to step her wine game up and let's get poor old pops some pay advancing recognition.  The check engine light is probably due to some "engineering glitch" , tell him to keep driving till the B'tard quits. Hey, that's my opinion and By God, it ought to be yours :lolb: :lolb: it's all good, you could have been Payton Manning this morning :lolb: :lolb:

Offline mklotz

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Re: The dynamo and the tu-tu
« Reply #8 on: February 04, 2014, 12:18:10 AM »
Quote
All I need is some decent needles and a recommendation for a 'doctor'.

Ah, so that explains the sudden stabbing pains I've been feeling in my head...or maybe it's the gin...Naw, can't be that.

Quote
The dremel idea is a good one but the shaft may be a little short.

Drill a hole that matches the diameter of the shaft into the end of a piece of round stock.  Slather shaft with Loctite and insert.  When done, reclaim the tool by heating to break the Loctite bond.

0.5*(0.2-.125) = 0.0375  seems a bit thin for a nut but it's up to you.  Maybe some sort of delicate Victorian (seems a contradiction) style or a nice art noveau fantasy nut.

Yeah, kids.  There's gotta be a better way to propagate the species.  (But then my misanthropy says that propagating the race may be a bad idea.)  As I told my sons-in-law when they proudly announced the imminent arrival of their firstborn,  "Life as you knew it is over."
« Last Edit: February 04, 2014, 12:25:47 AM by mklotz »
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Offline Don1966

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Re: The dynamo and the tu-tu
« Reply #9 on: February 04, 2014, 12:55:33 AM »
Carl glad to see you back buddy. You've made a great start on the dynamo so don't get detoured by any mishaps. I know it's hard to stay focused with daughter problems. I have two of my own and I married them off both together. My youngest ended up getting divorced and I had to pay for the divorce also. Well she's remarried and so far all is good. The thing about daughters is one leaves and two or three come back if you know what I mean. Cheer up bud your not alone here.

Don

Offline sshire

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Re: The dynamo and the tu-tu
« Reply #10 on: February 04, 2014, 01:05:03 AM »
Carl
Glad to see you making some chips.
A thought. Why not use the dynamo to power a "check engine" light on the spinster.
Best,
Stan

Offline Dave Otto

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Re: The dynamo and the tu-tu
« Reply #11 on: February 04, 2014, 01:10:40 AM »
Hey Carl

Good to see you working in the shop again!

I know what you mean about the critters; we have 2 dogs a tortoise, two fish tanks and a rabbit! Only the dogs belong to me and my wife. The tortoise belonged to my son and when he lost interest my wife took over (she likes him). My daughter is off to collage in the fall so guess who gets to tend the fish and the bunny? No not me that will be my wife's job  :naughty:.

Anyway it will be great to see some posts from you again.

Dave


 

Offline zeeprogrammer

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Re: The dynamo and the tu-tu
« Reply #12 on: February 04, 2014, 01:33:33 AM »
Ah, so that explains the sudden stabbing pains I've been feeling in my head...or maybe it's the gin...Naw, can't be that.

It's the gin. My wife drinks it and all I ever hear about is headaches.
You can't miss with a 'stinking hoppie'. Most any kind of vodka (cause after the 1st one it doesn't matter), some tipsy onions, and crushed ice. Jelly jar is required.

The thing about daughters is one leaves and two or three come back if you know what I mean.

Well that's it exactly. I always wanted daughters. They tend to stay close to the family. I hadn't figured on the garbage they brought home though. I guess I should've. I was once that garbage. I've since been upgraded to junk (trash, crap,...take your pick...it's an upgrade.)

A thought. Why not use the dynamo to power a "check engine" light on the spinster.

 :lolb: Good one.

so guess who gets to tend the fish and the bunny? No not me that will be my wife's job

I'll take that guess. It won't be your wife. You poor slob. Send me a PM and I'll let you in on a secret.
Never mind. I'll tell you now. If you thought you won...you didn't. Be happy with that.
Because if you think you won, even if you didn't, and she thinks you think you won and are happy about it then, she's happy about it and that makes two happy people.
Do not make the mistake of trying to make her think you think you're happy...for that leads to failure and unhappiness.
They think ahead whereas we think behind.

Or some such nonsense.

Point is...let them think you think you're happy. Tis the road to bliss.
Seems a bit chauvinistic...but you can turn that argument around.

Obviously I've been enjoying my own advice I gave to Marv.

Eric...yeah, I've been driving around with a check engine light for the last year. The car is 18 years old. I figure if it dies on the way to work...I have a day off.

Oh right...I'm supposed to be machining. Well not tonight. Gotta get over the effects of that oil hit.
Carl (aka Zee) Will sometimes respond to 'hey' but never 'hey you'.
"To work. To work."
Zee-Another Thread Trasher.

PatJ

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Re: The dynamo and the tu-tu
« Reply #13 on: February 04, 2014, 03:03:12 AM »
Cool beans Carl.

You are doing two things I really like; machining castings and messing with electricity.
I doesn't get much better than that (except making casting maybe).

My daughter moved back last year.
I am her auto mechanic and general repair man.
I know the story.

Good to see you doing cool stuff.

Pat J

Offline steamer

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Re: The dynamo and the tu-tu
« Reply #14 on: February 04, 2014, 03:51:18 AM »
ZEEEEEE!     The Zeeestah!....Making chips!

Life is good! ;D


Dave
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!