Ducati Monster Forum

Kitchen Sink => No Moto Content => Topic started by: uclabiker06 on August 02, 2011, 06:38:04 PM

Title: Spinning balls
Post by: uclabiker06 on August 02, 2011, 06:38:04 PM
Gotta love this guy
hurricane_balls (http://www.youtube.com/watch?v=cvq8laPb498#normal)
Title: Re: Spinning balls
Post by: Veloce-Fino on August 02, 2011, 06:48:09 PM
BOUGHT BOUGHT BOUGHT.

Going to hit them with a 3,000psi air compressor and see what happens.

Tearing of space-time continuum? Maybe....




Title: Re: Spinning balls
Post by: ducatiz on August 02, 2011, 06:50:30 PM
that's kewl
Title: Re: Spinning balls
Post by: Rameses on August 02, 2011, 07:01:57 PM


I wonder if there's a special way that they have to be welded to keep it balanced.

Maybe just putting them in the leads of a stick welder and touching them together?

I think I'm gonna try to make one of those.

Title: Re: Spinning balls
Post by: Veloce-Fino on August 02, 2011, 07:17:57 PM
Quote from: Rameses on August 02, 2011, 07:01:57 PM

I wonder if there's a special way that they have to be welded to keep it balanced.

Maybe just putting them in the leads of a stick welder and touching them together?

I think I'm gonna try to make one of those.



It's been nice knowing you.





Kidding..In the video description he said 800 amps were used to fuse them.
Title: Re: Spinning balls
Post by: ducatiz on August 02, 2011, 07:18:34 PM
Quote from: Veloce-Fino on August 02, 2011, 07:17:57 PM
It's been nice knowing you.





Kidding..In the video description he said 800 amps were used to fuse them.

sure

800 amps...  at 1 millivolt.
Title: Re: Spinning balls
Post by: uclabiker06 on August 02, 2011, 11:00:25 PM
You guys pay attention to the "gosh" at the very end ....hahaha faaaaaaaantastic

Actually looks like this guy made them himself
http://www.instructables.com/id/Hurricane-Balls-3000-rpm-spinning-toy/ (http://www.instructables.com/id/Hurricane-Balls-3000-rpm-spinning-toy/)

PS:  If anyone makes one for themselves can they make one for me too??????
Title: Re: Spinning balls
Post by: zarn02 on August 03, 2011, 12:29:34 AM
I'll take eight! [thumbsup]
Title: Re: Spinning balls
Post by: mitt on August 03, 2011, 06:48:59 AM
Cool.  800A would take a while in my opinion.  We use high current resistance welding all the time to weld silver contacts onto different materials, and we are in the 5000 to 12000A range for a couple milliseconds.  The heat comes from Ohmic heating (I^2*R*t).  I should try to make some.


mitt
Title: Re: Spinning balls
Post by: ducatiz on August 03, 2011, 06:51:27 AM
Quote from: mitt on August 03, 2011, 06:48:59 AM
Cool.  800A would take a while in my opinion.  We use high current resistance welding all the time to weld silver contacts onto different materials, and we are in the 5000 to 12000A range for a couple milliseconds.  The heat comes from Ohmic heating (I^2*R*t).  I should try to make some.


mitt

AKA "hot plate heating"
Title: Re: Spinning balls
Post by: uclabiker06 on August 03, 2011, 10:23:08 AM
or you can just get two neodymium magnet spheres; I don't know
Title: Re: Spinning balls
Post by: cokey on August 04, 2011, 09:41:24 PM
no ones made it yet? 
Title: Re: Spinning balls
Post by: RAT900 on August 05, 2011, 02:26:33 AM
I'm happy with the two I already have even if they don't spin so well
Title: Re: Spinning balls
Post by: ducatiz on August 05, 2011, 04:56:11 AM
Quote from: RAT900 on August 05, 2011, 02:26:33 AM
I'm happy with the two I already have even if they don't spin so well

maybe if you have that old guy weld them together and blow on them, like in the video?
Title: Re: Spinning balls
Post by: RAT900 on August 05, 2011, 05:19:12 AM
Quote from: ducatiz on August 05, 2011, 04:56:11 AM
maybe if you have that old guy weld them together and blow on them, like in the video?

I can assure you an old man blowing on them will not get them spinning...maybe ascending...but not spinning
Title: Re: Spinning balls
Post by: ducatiz on August 05, 2011, 05:53:26 AM
What about a high pressure nozzle?
Title: Re: Spinning balls
Post by: Duc Buz on August 05, 2011, 09:26:15 AM
Cool
Title: Re: Spinning balls
Post by: RAT900 on August 05, 2011, 09:31:30 AM
Quote from: ducatiz on August 05, 2011, 05:53:26 AM
What about a high pressure nozzle?

great mental visual thanks....... :-\
Title: Re: Spinning balls
Post by: ducatiz on August 05, 2011, 09:36:40 AM
Quote from: RAT900 on August 05, 2011, 09:31:30 AM
great mental visual thanks....... :-\
RAT900 found in forest (http://www.youtube.com/watch?v=LXVVfSLfVtE#)
Title: Re: Spinning balls
Post by: RAT900 on August 05, 2011, 12:43:20 PM
seriously Tiz....you don't want to cop to possession of these sorts of things...

not voluntarily or at the least without a plea bargain involved

this belongs in the WTF thread
Title: Re: Spinning balls
Post by: ducatiz on August 05, 2011, 12:45:42 PM
Quote from: RAT900 on August 05, 2011, 12:43:20 PM
seriously Tiz....you don't want to cop to possession of these sorts of things...

not voluntarily or at the least without a plea bargain involved

this belongs in the WTF thread

it falls under the Japanese Culture exception... lol.. google "tanuki"
Title: Re: Spinning balls
Post by: RAT900 on August 05, 2011, 12:56:31 PM
yeah but with the little red riding hood?....that is akin to an ad starring Bo Peep with Priapus' burden hanging over her shoulder   [cheeky]

http://en.wikipedia.org/wiki/File:Priapus_Fresco.jpg (http://en.wikipedia.org/wiki/File:Priapus_Fresco.jpg)
Title: Re: Spinning balls
Post by: take risks on August 05, 2011, 05:43:54 PM
wow [popcorn]
Title: Re: Spinning balls
Post by: lazylightnin717 on August 05, 2011, 07:32:13 PM
I had a buddy fuse two sets together for me today at work. The first set was so-so but the second set turned out well. The coolest part of it is seeing the ball bearings glowing BRIGHT red after they've been hit with the arc. We are going to work on doing it better on monday... experiment with a few different sizes and surfaces. I'm just curious how the guy in the vid got them to retain their polished nature. The ones we did today fried the surface keeping it from working as well as I feel it should.

Oh and we hooked it up with some high pressure air lines... I seriously thought it was going to create a black hole and suck Metallica's stage in right in there.
Title: Re: Spinning balls
Post by: Monsterlover on August 06, 2011, 05:51:07 AM
Couldn't you just epoxy them together?
Title: Re: Spinning balls
Post by: lazylightnin717 on August 06, 2011, 10:11:55 AM
I was thinking that or even JB weld but I couldn't find any at work in the short time I'm looked.

Besides, welding is way cooler than epoxy  8)
Title: Re: Spinning balls
Post by: Monsterlover on August 06, 2011, 10:12:57 AM
Yeah but it messes up the surface finish. . .

Glue it.

Then create a vortex to another dimension.
Title: Re: Spinning balls
Post by: mitt on August 06, 2011, 10:46:11 AM
You should not have to distort the surface color to weld it with a resistance weld (no arcing involved).  You will just melt the localized contact points on each ball.


mitt
Title: Re: Spinning balls
Post by: lazylightnin717 on August 06, 2011, 02:01:52 PM
That is more or less what he was doing. Not adding any filler rod at all.
Title: Re: Spinning balls
Post by: Veloce-Fino on August 06, 2011, 04:10:26 PM
Quote from: Monsterlover on August 06, 2011, 05:51:07 AM
Couldn't you just epoxy them together?

I imagine this working well until until they reach a high velocity and split apart sending metal death balls flying into the air.

It would be especially terrifying.
Title: Re: Spinning balls
Post by: Drunken Monkey on August 06, 2011, 09:47:38 PM
I'm still puzzling over how they hold onto their angular momentum.

It's not like they're aerodynamic, in fact the only thing they have going for them is that they'd be extremely well balanced.

Hmmmm.
Title: Re: Spinning balls
Post by: ryandalling on August 07, 2011, 07:25:21 PM
Without video... we have no proof that Metalicas stage could be sucked into the vortex... will need video of the homemade versions.   ;D
Title: Re: Spinning balls
Post by: cokey on September 04, 2011, 07:10:39 AM
Where's the vids?
Title: Re: Spinning balls
Post by: lazylightnin717 on September 04, 2011, 04:37:29 PM
Sorry gentlemen. No vids of Metallica at this time.

They are shooting at the shows for a movie and it is strictly against company policy blah blah blah.
Title: Re: Spinning balls
Post by: lazylightnin717 on September 04, 2011, 04:48:26 PM
(http://i784.photobucket.com/albums/yy130/rappevan/08aug3111_pic02.jpg)

Here is the drum "mobilator" that we built.

It's remote controlled with 4 pneumatic mobilator drive units. It can move in any direction up to 2 fps and weighs a gazillion pounds.

Only reason I am posting this picture is because it is up on Metallica's website.