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UPDATED color-mixing fidget spinner
The latest addition to my EDC (everyday carry)
About this creation
Please feel free to look over the images and skip the verbiage.

According to a story on National Public Radio today, fidget spinners have become the latest craze to sweep the US. In fact, chartered cargo jets are converging on Toys "R" Us as I write to stock the shelves with as many fidget spinners as the big-box toy seller can get its hands on. Really.

So I decided to get in on the act, but with a twist: At speed, the orange and lime colors of my spinner fuse to a rich yellow through the magic of additive color mixing and the flicker fusion threshold illusion.





Cantaloupe top better showing the orange + lime = yellow additive mix...



The color-mixing effect is pretty strong in person, but it proved hard to capture in stills and almost impossible on video. Hence, this short video is mainly to show the spinner in motion...





Fidget spinners were originally popularized by the everyday carry (EDC) folks, who think nothing of shelling out $300 for a spinner exquisitely machined from some exotic metal like Damascus steel, tungsten, beryllium bronze, depleted uranium, or tantalum-niobium-rhenium-polonium alloy -- you know, the kind used in armor-piercing nuclear warheads.

You can still buy spinners like that, of course, but cheap plastic versions are flooding the market now.

When I posted my own LEGOŽ EDC gear a while back, I didn't think to include a fidget spinner.



Well, oversight rectified, and for less than a buck!

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Update and a new design

The original spinner's outer black Technic balls were supposed improve spin time by increasing axial moment of inertia (AMI). But they really cut into the hand clearance around the spinner, and that made it harder to get good, clean spins.

A better way to increase AMI...





This update has more mass (16 vs. 12 g), especially peripherally, and a significantly longer spin time (8 vs. 5 sec). Narrower ends make clean spins a lot easier.

And here's an 11 g, 7-sec, 3-spoke spinner with even more hand clearance. It's perfectly safe at normal spinner operating speeds but, unlike the other two, will fly apart if you spin it much faster.





The video doesn't include these 2 updates. You can see a much-improved version of the latter on my Much better fidget spinner/top MOCpage.

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Specifications (original only)

Version:1
Spokes:2
Overall dimensions:72x42x24 mm (LxWxH)
Mass:12 g
Spin time:~5 sec
Modified LEGOŽ parts:None
Non-LEGOŽ parts:None
Credits:Original MOC
See also:Much better fidget spinner/top, Way cooler than your EDC!, and Color-mixing tops

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Comments

 I made it 
  May 15, 2017
Quoting Nils O. I love the orange/lime/yellow colour mix. Great job! :-))
Thanks, Nils! It's becoming a favorite of mine, too -- very tropical.
 I like it 
  May 15, 2017
I love the orange/lime/yellow colour mix. Great job! :-))
 I made it 
  May 10, 2017
Quoting jds 7777 Haha very clever Jeremy! Too bad Lego doesn't make ball bears like what are used in the real fidget spinners. On a side note, here is a link to a video I thought you might find interesting. It's a top that uses ball bearings to spin over 100,000 rpm! If that wasn't dangerous enough, he put exacto blades on it to cut things (not his fingers, thankfully) https://youtu.be/mP-tqMKqDAQ
Thanks, JDS! I've seen some of his razor-blade top videos but not that one. I managed to get a 68 mm Znap propeller wheel top like the ones at https://www.youtube.com/watch?v=fGlb-8GEoyc to over 8,000 RPM with a blow dryer, but that's a far cry from 100,000. He's lucky his spinner didn't explode at that speed.
 I like it 
  May 10, 2017
Haha very clever Jeremy! Too bad Lego doesn't make ball bears like what are used in the real fidget spinners. On a side note, here is a link to a video I thought you might find interesting. It's a top that uses ball bearings to spin over 100,000 rpm! If that wasn't dangerous enough, he put exacto blades on it to cut things (not his fingers, thankfully) https://youtu.be/mP-tqMKqDAQ
 I made it 
  May 9, 2017
Quoting Sven ;o) Really nice work again my friend. Really like this one because you need no plain surface ;)
Thanks, Sven! Yes, and they're more pocket-friendly, too. But there's a dark side. Daughter told me last night that fidget spinners have become so disruptive in class that they were recently banned in Denver schools.
 I like it 
  May 9, 2017
Really nice work again my friend. Really like this one because you need no plain surface ;)
 I made it 
  May 8, 2017
Quoting Didier B I'm gonna build one for my son ! Thank you Jeremy.
Excellent! Are these spinners popular in Spain (or is it France?), too?
 I made it 
  May 8, 2017
Quoting Daniel H. I'll definitely be making a different version, since my tiny rendition of yours has.. ah... exploded across the room many times whilst being spun... heh.
Tell me about it! It's amazing how strong the centrifugal urge to fly apart can get in LEGO tops. It's also amazing how well LEGO can resist that. Can't tell you how many tops I've turned into shrapnel just by spinning them too fast. Eventually you learn to deal with it, but there are still surprises. So you always have to test new designs carefully.
 I like it 
  May 8, 2017
I'm gonna build one for my son ! Thank you Jeremy.
  May 7, 2017
Awesome update!
 I made it 
  May 7, 2017
UPDATE: Just added a longer-spinning improvement of the original spinner and, just for kicks, a new 3-spoke design.
  May 7, 2017
Nearly finished my spinner, it doesn't explode anymore!
 I made it 
  May 7, 2017
Quoting Doug Hughes Another awesome creation! I may also try to build one of these to mess around with on my desk!
Thanks, Doug! If you ask me, designing them and getting them to work well enough is even more fun than playing with them.
 I made it 
  May 7, 2017
Quoting Allthingsgeek JacenSolo Amazing! Love your creations! There so useful!
Very kind!
 I like it 
  May 7, 2017
Another awesome creation! I may also try to build one of these to mess around with on my desk!
 I like it 
  May 7, 2017
Amazing! Love your creations! There so useful!
  May 7, 2017
I'll definitely be making a different version, since my tiny rendition of yours has.. ah... exploded across the room many times whilst being spun... heh.
  May 6, 2017
Probably not, since it's nearly the same as yours. I might try something different though, and post it.
 I made it 
  May 6, 2017
Quoting Daniel H. Just built a bit of a smaller version of this. It's tons of fun!
Great! Are you going to post it?
  May 5, 2017
Just built a bit of a smaller version of this. It's tons of fun!
 I made it 
  May 5, 2017
Quoting Clayton Marchetti That's awesome, what's a fidget spinner?
Thanks, Clayton! Wikipedia has a better answer to that than I can give here.
 I made it 
  May 5, 2017
Quoting Oliver Becker Fidgeting around seems to be the new pastime... ;) Another very entertaining creation, my friend! You're so busy working on your projects, that likes will follow as fast as the spin rotation, I'm sure...! :)
Too kind, Oliver! My output is small next to yours. We've been trained by our smartphones to fear being unoccupied.
 I like it 
  May 5, 2017
That's awesome, what's a fidget spinner?
 I like it 
  May 5, 2017
Fidgeting around seems to be the new pastime... ;) Another very entertaining creation, my friend! You're so busy working on your projects, that likes will follow as fast as the spin rotation, I'm sure...! :)
 I made it 
  May 5, 2017
Quoting Gabor Pauler I would vote on depleted uranium, that is so environment-friendly.
Excellent choice, Gabor! Then the spinner can double as a pocket warmer. And if you were to carry it in your pocket often enough, it would triple as a permanent contraceptive, too!
 I made it 
  May 5, 2017
Quoting Nirds forprez I heard about these a long time ago, and while I try to stay away from doing evaluations for ADHD for adults I still get them from time to time. Now, when I am requested to do one, inevitably I get the question "do you have a certain fidget toy that you would recommend?" - Perhaps I will direct them to your spinner :)
These things are all over the web now -- they really have become a craze. I prefer to fidget with tops personally (the kitchen counter is always equipped with at least one). But these spinners do have a certain charm, and they're generally more pocket-friendly.
 I made it 
  May 5, 2017
Quoting Sir Flexalot Btw, Did you post this to a homeschool Facebook page? My mom said she saw something like this on one that she follows XD
Thanks! No, that wasn't me. Lots of other LEGO spinners on the net besides mine.
 I made it 
  May 5, 2017
Quoting Jonathan Demers Neat! I always love looking at your creative Mocs!
Very kind, Jonathan!
 I like it 
  May 5, 2017
I would vote on depleted uranium, that is so environment-friendly.
 I like it 
  May 5, 2017
I heard about these a long time ago, and while I try to stay away from doing evaluations for ADHD for adults I still get them from time to time. Now, when I am requested to do one, inevitably I get the question "do you have a certain fidget toy that you would recommend?" - Perhaps I will direct them to your spinner :)
  May 5, 2017
Btw, Did you post this to a homeschool Facebook page? My mom said she saw something like this on one that she follows XD
 I like it 
  May 5, 2017
Awesome! I'll try something like this till my real one comes!
 I like it 
  May 5, 2017
Neat! I always love looking at your creative Mocs!
 I made it 
  May 4, 2017
Quoting Daniel H. I always love your creations! Great spinner! I want to make one now. :P
Thanks, Daniel! I'm sure there are dozens if not hundreds of different LEGO fidget spinners just waiting to be made.
 I like it 
  May 4, 2017
I always love your creations! Great spinner! I want to make one now. :P
 
By Jeremy McCreary
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LEGO models my own creation MOCpages toys shop UPDATED color-mixing fidget spinner


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