Incredibly Satisfying Sphericons

this is a spheric on a curious solid created through the rotation of a bicone and 90 degree rotation of 1/2 and these are my experiments revolving around it let's get started how's it going guys Angus here from makers Muse if you've seen my many previous videos experimenting with solids of constant width then it'll come as no surprise that I've become completely obsessed with these strange forms since someone shared this trippy video with me on Instagram they're known as sphere of cons and the video was created for a Kickstarter by miguel Duren who was offering his own renditions machined from metal i'll link his campaign down below you definitely need to go check it out completely inspired I just had to learn more about these weird solids so I did some research the term was coined by Israeli game and toy inventor David Hirsch who went on to patent his discovery as I quote a device for generating a meandering motion his patent is based on what's known as a bicone that is two cones facing opposite directions it's basically a square at 45-degree angle which is revolved around its axis and then you take one side split it and rotate it 90 degrees this simple rotation completely transforms the shape and is completely mind-blowing to me it effectively creates a solid with only one surface many it really does roll with that back and forth meandering motion specified in the patent unlike a sword of constant width however spheric ons have a fixed center of mass making them roll really smoothly despite the unusual path they take to do so so this got me thinking though if you could create a spheric on from this shape what about other regular polygons well with the magic of CAD and 3d printing I was able to quickly test and prototype many different versions and here's what I found out an equilateral triangle is the simplest you can create and gives us this shape which has a single surface and a single line it looks pretty neat let's be honest but it isn't hugely satisfying because it can't continuously roll it just stops and this is true for all odds sided permutations however even cited polygons lead to some really interesting results this six-sided form is a recreation of the hex aspheric on from the Kickstarter and it has a really fascinating motion that rolls and then suddenly backtracks a little bit in only one direction and continues to roll this is compared to the four-sided sphere icon which moves in more of a zigzag motion which was described as meandering changing the axis of rotation also drastically affects the resulting solids such as this model where the axis perpendicular to the edges compared to being point to point so instead of a continuous surface this solid has a continuous edge instead I told you the idea of turning this into a track for a ball bearing but I think there's probably someone else on YouTube who could do a better job at this than me more on that at the end my favorite experiments of Spira cons however was drastically altering the original profiles by adding shapes to the corners effectively inflating the edges and creating these incredible looking forms they honestly look like some kind of alien artifact I really really love them the modified sphere cons nested your head a bit as a role because they alternate between each edge seamlessly and they roll really smoothly and I think they would make a fantastic toy but my absolute favorite in this lineup has to be this one a hex aspheric on with inflated edges and seamlessly flowing undercuts it's gorgeous and it just looks so trippy in the shiny poly Acme elixir filament a 3d printed it with place this thing on a gentle slope and enjoy a seemingly contradictory movement as it rolls and then suddenly changes paths only to continue rolling onwards I've 3d put it a lot of wacky objects before as you can see on my shelf but this one this one's something special you can actually change the direction that moves by changing the rotation of the split in this case I've rotated at 60 degrees because it's 360 divided by the sides of the polygon which is six here that'll give you the rotation angle you need to create your spiricon so if you'd like to 3d print your own you can find them on the Gumroad link above and support material isn't needed for the models I've uploaded however you definitely should print them on a very fine layer height to ensure smooth rolling 150 microns or even finer is worth doing if you have the time or even consider using a variable layer height if your slicer supports that but hey remember I said there's someone else on this platform who could take these things further well it turns out that I wasn't the only one inspired by Spirit cons and Devin over at make anything has been working hard on his own inspired versions of these curious objects I'll be linking to it right here so guys what I would love you to do is to head over to it where he'll also be demonstrating how to 3d model these shapes in fusion 360 so let him know I sent you and hey consider subscribing if you want to see future content like this here and make his muse I really enjoy making it I love food scene again very shortly catch later guys bye

Channel: undefined

Views: 6,682,180

Rating: 4.7107811 out of 5

Keywords: 3d printed sphericon, hexasphericon, sphericon, geometric design, experiment, demonstration, learning, history, about, 3D, printing, 3d design, CAD, shiny pla, download, curiosity, mind blowing, illusion, angus deveson, maker's muse, australia, zigzag, strange rolling, satisfying

Id: wb29-ULRBaE

Length: 5min 51sec (351 seconds)

Published: Sat Jul 07 2018

Reddit Comments

[u/drsjsmith]

Surely there are left-handed and right-handed hexasphericons.

[u/Effnote]

http://www.interocitors.com/polyhedra/n_icons/index.html Here is an in-depth page about sphericons.

[u/WillSteinmetz1]

An entire line of children’s toys right here.. who’s with me??

[u/ahart21]

I want to buy these considering I don’t have a 3D printer

[u/[deleted]]

/r/mildlyinteresting

[u/agumonkey]

fabulous, I want mechanical machines based on these .. kinda like analogical machines of the 40s

[u/[deleted]]

That Nightshade Elixir is gorgeous... 😍

[u/springbottom]

'it effectively creates a solid with only one surface'
'fixed center of mass'

[u/Ukhai]

wonder if you could hollow a bit and put something inside to keep it rolling. maybe some kind of gyro, ball bearing, or generator even?