tag:blogger.com,1999:blog-3253575113783707670.post1929030537764883338..comments2023-12-17T03:36:07.161-08:00Comments on My SD300 3D Printer: Rhombic Dodecahedron PuzzleScott Elliotthttp://www.blogger.com/profile/04412998136313650302noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-3253575113783707670.post-78784582665191566202014-03-31T14:30:15.014-07:002014-03-31T14:30:15.014-07:00Hi Scott,
Just saw this surface on thingiverse. I...Hi Scott,<br /><br />Just saw this surface on thingiverse. I also made one of an R12 with four pieces but I ended up preferring and R12 with 2 pieces. I have done a nice cuboctohedron face to face with 3 pieces and a dodecahedron vertex to vertex with 3 pieces as well. All can be printed on my Type A Machine FDM without support or even infill (If the excellent kisslicer algorithm is used). <br /><br />George Hart wrote software (probably in java) to make any slide together with parameters some years ago. My first intro to this idea was from Rinus Roelofs. <br /><br />If you want I'll send along files. I haven't published it as I consider it not really my idea even though I did work on it and have made more than a few for friends and family and because thingiverse has disagreeable (to me) terms of service regarding content and attribution. <br /><br />Cheers,<br /><br />Chris K. PalmerChris K. Palmerhttp://www.shadowfolds.comnoreply@blogger.comtag:blogger.com,1999:blog-3253575113783707670.post-58928865439526125132011-10-17T16:46:50.790-07:002011-10-17T16:46:50.790-07:00Yeah, I was thinking of dodecahedron face to face....Yeah, I was thinking of dodecahedron face to face. Or maybe, try the icosahedron?Georgehttps://www.blogger.com/profile/10140920751826036814noreply@blogger.comtag:blogger.com,1999:blog-3253575113783707670.post-20315875939069359192011-10-17T13:09:05.884-07:002011-10-17T13:09:05.884-07:00Wizarth, other users have asked the same thing so ...Wizarth, other users have asked the same thing so I will add my source data at Thingiverse. It was initially modeled in Alibre but it kept exporting defective STL meshes so I re-did it in OpenSCAD.<br /><br />George, the corners (vertices) of a Platonic dodecahedron have 3-way symmetry, not 5-way. To get 5 identical pieces a dodecahedron would have to be dissected from face-to-face. (Its dual, the icosahedron, could be dissected from vertex-to-vertex.)<br /><br />That raises an interesting observation: I've considered a face-to-face division of a solid, but never tried to build one. It's intriguing that other designers who've built similar dissections (George Hart, Oskar van Deventer, and Robert Ried) always used vertex-to-vertex or edge-to-edge schemes. Come to think of it, though, Bram's "Trapped Marble" includes a face-to-face bisection of a rectangular prism.Scott Elliotthttps://www.blogger.com/profile/04412998136313650302noreply@blogger.comtag:blogger.com,1999:blog-3253575113783707670.post-23460644698163437832011-10-17T06:46:20.773-07:002011-10-17T06:46:20.773-07:00Dare I suggest: Dodecahedron in 5 pieces?Dare I suggest: Dodecahedron in 5 pieces?Georgehttps://www.blogger.com/profile/10140920751826036814noreply@blogger.comtag:blogger.com,1999:blog-3253575113783707670.post-40545315661520020422011-10-14T03:08:54.538-07:002011-10-14T03:08:54.538-07:00How did you model this?How did you model this?Wizarthhttps://www.blogger.com/profile/05947854930070621586noreply@blogger.com