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LEGO models my own creation MOCpages toys shop It's the chase
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It's the chase
But who's chasing whom?
About this creation


Dogs love to chase mailmen -- for sport if nothing else. Mailwomen must get chased, too, but the trope's silent on that point. (Hmmm, wonder who gets chased more often?)



And when no one's looking, I'm quite sure that our mail carriers chase dogs -- for sport if nothing else.



Warning! Always wear eye protection when working or playing with LEGOŽ gizmos rotating at high speed and keep valuables and bystanders (including pets) a safe distance away -- especially when testing new designs. Really.

The minifigs stay put quite well at speeds attainable by hand in the positions shown. But move them even 1 stud farther from the center, and they'll go flying at speed.



The dogs, having less secure footing, must be tethered in any position.

No high-speed starters with a top like this!

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Tilt pad

A top spinning on a low-friction surface will drift down even the gentlest slope. It will also drift in the slightest breeze. The drift complicates video framing and may cause the top to crash into something long before falling on its own. Such crashes keep the top from reaching its best spin time.

But now there's a cure!



The 3-point tilt pad under the glass spinning surface as the video opens stops drift by either leveling the surface or tilting it upward in the downwind direction. The tilt pad can also be used to steer a top toward a game target (think 3-knob Etch-a-Sketch).

As you can see at 1:26 in the video, linear actuators are really just general-purpose lead screws.

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Specifications

Overall dimensions:86x100 mm (DxH)
Mass:49 g
Spin time by hand:10-12 s
Safe for twirling by hand:Yes (but see text)
Safe for high-speed starters:Definitely not!
Modified LEGOŽ parts:Tip cut from 4L antenna
Non-LEGOŽ parts:None
Credits:Original MOC
See also:Titanic top and Sittin' on top of the world

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Comments

 I made it 
  December 29, 2018
Quoting Commander Cold I wish I would have discovered your page sooner. I always had an interest in mechanical things in LEGO, but I never had much TECHNIC LEGO growing up.
Thank you! It's never too late. After my 50+ years of LEGO engineering, still no better way to learn about mechanical things than to fool around with them in my own hands. And no easier way to do that than with LEGO (not just Technic). Ultimately, willingness to fail is the key to success. All you have to do is start and follow what interests you. Wikipedia is a wonderful resource on all things mechanical.
 I like it 
  December 29, 2018
I wish I would have discovered your page sooner. I always had an interest in mechanical things in LEGO, but I never had much TECHNIC LEGO growing up.
 I made it 
  December 28, 2018
Quoting Smilt Spartane That's a fast mailman, I would like mailmen to run that fast when they deliver packages ! It's a great creation !
Thanks! I think fast mailmen cost more.
 I like it 
  December 28, 2018
That's a fast mailman, I would like mailmen to run that fast when they deliver packages ! It's a great creation !
 I made it 
  December 16, 2018
Quoting Sam Sanister I uploaded the top I made, and I also made an improvement to the tip.
Excellent! Will comment there soon.
 I like it 
  December 15, 2018
I uploaded the top I made, and I also made an improvement to the tip.
 I made it 
  December 5, 2018
Quoting Oran Cruzen Excellent work Jeremy! Great idea and build.
Many thanks, Oran! Good to hear from you.
 I made it 
  December 5, 2018
Quoting Sam Sanister I made a 4-piece top out of a lever (4592), 6x6 dish, 1x1 cylinder brick, and a technic half-pin with 2L bar extension (61184). The second half of the lever piece (4593) being inserted into the upside down 4592 decreases travel, increases stability and spin time. Gets about 20 seconds on a good spin, but I've only tried it on a mousepad, not wood/plastic/glass. (just built it as kind of a fidget spinner thing, so not going for impressive times or anything)
Sounds interesting, Sam! How about a MOCpage so we can see it in action? In general, the smaller the radius of curvature of the tip making contact with a hard smooth surface allowing no sinkage, the smaller the tendency to precess and travel, and the longer the spin time. If the mouse pad allows sinkage of the tip, it will definitely shorten spin time while reducing travel even more.
 I like it 
  December 4, 2018
Excellent work Jeremy! Great idea and build.
 I like it 
  November 28, 2018
I made a 4-piece top out of a lever (4592), 6x6 dish, 1x1 cylinder brick, and a technic half-pin with 2L bar extension (61184). The second half of the lever piece (4593) being inserted into the upside down 4592 decreases travel, increases stability and spin time. Gets about 20 seconds on a good spin, but I've only tried it on a mousepad, not wood/plastic/glass. (just built it as kind of a fidget spinner thing, so not going for impressive times or anything)
  November 19, 2018
Haha, but remember: Honor to whom honor is due! ;)
 I made it 
  November 15, 2018
Quoting Oliver Becker Fasten your brickbelts! Jeremy, master of centrifugal force, has made a new and wonderful entertaining MOC! JOY, my friend!
Wow, Oliver, thanks for coming up with my latest and greatest title! Totally adding "Master of Centrifugal Force" to my business cards -- right above "Master of Losing Hats".
 I like it 
  November 15, 2018
Fasten your brickbelts! Jeremy, master of centrifugal force, has made a new and wonderful entertaining MOC! JOY, my friend!
 I made it 
  November 11, 2018
Quoting Walter Lee Amazing that it still spins so nicely. It reminds me of a Zoetrope and the Disney Pixar movie "UP!" (2009) where the running joke is that dogs like chase squirrels.
Thanks, Walter! I'm quite pleased with the lack of wobble, but the minifigs must be fully seated and posed symmetrically for that to happen. It would definitely be fun as a zeotrope, and it would be easy to get that effect (and many others) under my variable-speed strobe light.
 I like it 
  November 11, 2018
Amazing that it still spins so nicely. It reminds me of a Zoetrope and the Disney Pixar movie "UP!" (2009) where the running joke is that dogs like chase squirrels.
 I made it 
  November 11, 2018
Quoting BATOH rossi ha ha, tasty representation of the eternal mailmen-dog fight!
Thank you very much! I know a retired mailman who was bitten 7 times in his 26-year career. I asked him if he ever tried decoy squirrels. He said yes, but they wouldn't stay in his mailbag long enough to do any good.
 I like it 
  November 11, 2018
ha ha, tasty representation of the eternal mailmen-dog fight!
 I made it 
  November 11, 2018
Quoting Seaman SPb Nice work!
Thanks, Seaman!
 I like it 
  November 11, 2018
Nice work!
 I made it 
  November 11, 2018
Quoting Clayton Marchetti It was a complete blur not sure how was chasing who ha ha ha! Awesome!
Thanks, Clayton! Sure hope those dogs don't bet bitten.
 I made it 
  November 11, 2018
Quoting Sven ;o) Fabulous work again my good friend. The name says it all :) Really like it. Lovely weekend greets from us to you and your's :)
Thanks so much, Sven! Same to you and your family!
 I like it 
  November 11, 2018
It was a complete blur not sure how was chasing who ha ha ha! Awesome!
 I like it 
  November 11, 2018
Fabulous work again my good friend. The name says it all :) Really like it. Lovely weekend greets from us to you and your's :)
 
By Jeremy McCreary
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LEGO models my own creation MOCpages toys shop It's the chase


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