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Breaking Heart Machine

Meditative therapy hand manipulation shapes
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Sorry I don't have a good picture or animation or video for this. I am in the process of waiting for the 3d prints of the shapes, but have printed them out a long time ago and know that they work.

The second shape under "new shapes" at the linked page is a bisected equilateral cone in which one half of the cone has been rotated 120 degrees. If two mirrored versions of this shape are rolled against each other in the hands, the resulting motion is perfectly rotational - the shapes roll against each other smoothly and compleat a full rotation.

The resulting profile is of two halves of a valentines heart shape splitting and coming back together again over and over.

The motion is also meditative and theraputic and engaging.

JesusHChrist, Aug 01 2013

Anything like this? http://www.youtube....watch?v=KWg-hRxq3Q0
[MaxwellBuchanan, Aug 01 2013]

Public library 3d printing http://dclibrary.org/node/36592
[JesusHChrist, Aug 01 2013]

A better picture of two mirrored cone-sphericons http://patricktimon...ven.com/photo4.html
The third and fourth shapes. It is still a little hard to tell what's going on there. You kind of have to print the out [JesusHChrist, Aug 01 2013]

3d printing in libraries http://www.washingt...your-local-library/
[JesusHChrist, Aug 01 2013]

3D printing in non-libraries http://makespace.org/
But it's still open to the public. [Wrongfellow, Aug 02 2013]

Heart Math http://mathworld.wo...com/HeartCurve.html
[JesusHChrist, Aug 02 2013]

[link]






       I can't tell what shape you're referring to in the link. However, at work someone printed out (on a Makerbot) a 3D heart consisting of intermeshed gears. When twisted, the gears turn in synch, destroying and then re-composing the heart.   

       [Edit - found it; link]
MaxwellBuchanan, Aug 01 2013
  

       Very much like that, but without gears or bearings, and with only two parts. The two mirrored parts are actually types of sphericons, according to the originator of the sphericon who I consulted with on the project.   

       I like to think that my project was the ancestor of the breaking heart gear since I invented it at a 3d printing company I was working at in 1998.   

       The shape is one-sided, like a sphericon, but with only one edge rather than two. The two halves of an equilateral cone are twisted 120 degrees against each other until a point from the base of the cone meets the peak of the other half of the cone.   

       Another sphericon relative that can be manipulated in a similar manner can be made by joining a half-double cone and half of a cylander. Two versions of this appear in that same image. One has a profile that morphs from a circle to a square as it is rotated -- a squircle.   

       Also I printed out a rudimentary structure to imitate what my hands were doing during my meditative manipulations of the shapes, but only for the original sphericon. A picture is displayed on the same page, entitled "sphericon machine."   

       The company I was working with was called zcorp, recently swallowed by 3Dsystems.   

       On a related note, we just got a publically-available 3d printer, which I think is a 3dsystems printer, at the MLK public library where I work in Washington DC, which prints out parts for between one and five dollars, and from which I am waiting for a print-out of the breaking heart machine. There is an understandable queue.
JesusHChrist, Aug 01 2013
  

       Kudos!   

       Also, it is awesome that the library has a 3D printer - I wonder if Cambridge Central Library is planning to go that way...
MaxwellBuchanan, Aug 01 2013
  

       // I wonder if Cambridge Central Library is planning to go that way...//   

       There's no need - Cambridge already has publicly available 3D printing facilities, ref the somewhat off-topic [link].
Wrongfellow, Aug 02 2013
  

       "The filename <UltimateBong.vrml> is already taken. Please choose another filename for your 3D printer project."   

       "umm... UltimateBong1.vrml"   

       "The filename <UltimateBong.vrml> is already taken. Please choose another filename for your 3D printer project."   

       "UltimateBong2.vrml??"   

       "The filename <UltimateBong2.vrml> is already taken. Please choose another filename for your 3D printer project."   

       "Oh come on... UltimateBong3.vrml"   

       "The filename <UltimateBong3.vrml> is already taken. Please choose another filename for your 3D printer project."   

       "Grr... UltimateBong999.vrml"   

       "The filename <UltimateBong999.vrml> is already taken. Please choose another filename for your 3D printer project."   

       "AGH!!!"
RayfordSteele, Aug 02 2013
  
      
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