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Robot Fan completed  Rate Topic 
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 Posted: Fri Jan 12th, 2018 04:38 am
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William Dunlap
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Whew....I was holding my breath on this one. It was mechanically very challenging for me.But, today, switch on and it works beautifully. See video for the action.




Details as follows. 
First of all, I know this ain't no antique fan....but it does look like one, doesn't it? I used techniques right from the era this fan might represent in fabricating all these parts.
But, there aren't any antique fan parts anywhere. Nope, all new. Except the base which is a lamp base of unknown parentage.
I used two miniature 12 volt DC brushed 1500rpm permanent magnet motors for the fans. There's only one 120 volt AC synchronous gear reduction motor to drive the gyro and orbit motions.
When all motors and lamps are on, it draws only 15 watts. How cool is that?
I used gears and traction wheels to distribute motion to everything. It's a bit complex but it works like a charm.

Inside the turret is housed the gear reduction motor and the slip rings. That's all.
One switch does it all, too. It's a four position rotary switch. Off, lamp, lamp and fans and just fans. Fans gyro and orbit full time. No speed control necessary for the fans. They're just right.
I looked up the schematic for the switch. It's amazingly complex to do just those functions.

Check out the pic of the eight inch GE fan along side this in order to get the scale of this. This is miniature. I'm leaning toward very small fan projects right now and envision a range of six inch orbiters using this type of motor. To give you an idea of the scale, I've used 1/16" brass rod for the cage spokes when I would normally use about twice that size. 1/8th is what I used for struts.


I've got about 120 hours into this project. Now, that's too much for any kind of commercial venture, so it's an art venture, pure and simple. I don't know if I'll keep it or sell it. Usually if it looks really nice and works great, I don't want to sell it. But if it doesn't really punch my ticket mechanically or visually I can't bring myself to pawn it off on someone else. Hence the quandary.......oh well.


I'll let economics decide for me at some point.

Cheers,
Bill





Last edited on Fri Jan 12th, 2018 07:20 am by William Dunlap

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 Posted: Fri Jan 12th, 2018 09:51 am
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Rick Powell
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Impressive Bill, you have outdone yourself on this one, Jules Vern would be very happy.

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 Posted: Fri Jan 12th, 2018 11:57 am
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George Durbin
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Dang Bill!
That is a beauty!!  Let's see...  A buck an hour x 120 + parts.... ok I will send ya $150 but you gotta pay shipping...

Geo...     Always thinking I am!

Ps.... I will put it close by to my phonograph duel fan you made I have proudly displayed in my home...

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 Posted: Fri Jan 12th, 2018 12:14 pm
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Rick Huckabee
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Genius really. Your very creative and talented. I'd love to see your shop.

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 Posted: Fri Jan 12th, 2018 12:48 pm
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Mark Behrend
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Simply Amazing Work!

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 Posted: Fri Jan 12th, 2018 04:09 pm
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George Durbin
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Looks like something from the movies with all of the mechanical devises! The League of Extraordinary Gentlemen or any of the bar scenes from Star wars or other shows like that! Very cool!
Geo...

Last edited on Fri Jan 12th, 2018 04:11 pm by George Durbin

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 Posted: Fri Jan 12th, 2018 04:42 pm
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Marce Clark
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Awesome work

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 Posted: Fri Jan 12th, 2018 05:23 pm
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William Dunlap
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Thanks guys,

I need a rest from this one.

Anyway, my shop is a total embarrassment when I'm in the "zone" and creating. Total mayhem... tools and supplies everywhere....brass filings and dust everywhere. I try to keep up, but it's hopeless.

001 by William Dunlap, on Flickr

Today, I'll go in the garage for a cleanup.

I did something new. I, er, um, left some patina on the base. I rubbed lacquer thinner on it and it didn't do a thing so I left it alone. It's actually not brass anyway, but brass plated cast zinc and usually the brass plating is pretty thin.

Jules Verne? League of Extraordinary Gentleman...Star Wars?

Now you've done it. My brain will be digesting this for days....thanks...I think.

Cheers,
Bill

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 Posted: Fri Jan 12th, 2018 08:30 pm
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Dave McManaman
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Very nice!

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 Posted: Sat Jan 13th, 2018 11:35 am
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NM Whitney Jr.
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Hypnotic!

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 Posted: Sat Jan 13th, 2018 01:12 pm
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Kim Frank
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Bill, I like that very much. It reminds me of the "Thirteen Ghosts" movie.

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 Posted: Sat Jan 13th, 2018 01:39 pm
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Rick Huckabee
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McGyver's place.

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 Posted: Sat Jan 13th, 2018 03:57 pm
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Steve Stephens
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Great job William and, to use Maxwell's old slogan, "Perfectly Simple, Simply Perfect"

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 Posted: Sat Jan 13th, 2018 06:13 pm
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William Dunlap
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Thanks for all that.

Now I have to see a movie. I watched the trailer so I think I get it.

I'll have to get some special glasses perhaps?

I've already ordered more 12v DC motors in preparation for my next episode.

I've been scribbling on paper already and envisioning things.

Like Roto-orbit-beam or Golden Swan......things like that.

Miniature style.

Cheers,
Bill

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 Posted: Sat Jan 13th, 2018 10:16 pm
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Steve Sherwood
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Man that's over the top, very nice. You are a true craftsman.

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 Posted: Sun Jan 14th, 2018 05:13 pm
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Dean Steinhaus
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You are absolutely a mechanical genius !!

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 Posted: Tue Jan 16th, 2018 04:19 pm
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Chris Hovey
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Excuse me while I pick my jaw up off the floor. Remarkable work. There could be a lot of people willing to buy something like this.

Last edited on Tue Jan 16th, 2018 08:42 pm by Chris Hovey

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 Posted: Tue Jan 16th, 2018 05:52 pm
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Jeff Whitfield
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Outstanding creation. Your custom skills are beyond impressive. I draw parallels to the Robot character from "Lost in Space."

Attached Image (viewed 111 times):

11036_1000x1000.jpg

Last edited on Tue Jan 16th, 2018 05:52 pm by Jeff Whitfield

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 Posted: Wed Jan 17th, 2018 12:50 am
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Jeff Jones
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That is amazing! If you ever market them I'd buy one in a heartbeat!

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