I want to update this blog more frequently, so I will write a monthly blog with updates on my current situation and a summary of my creations.
Update on my current situation
Dropped out of college
I was an undergraduate student at Ryukoku University but had to drop out due to a chronic illness. Although I was absent from school for a long period of time and rarely attended classes, I was allowed to stay in the geometry laboratory and play in a fabrication facility with a 3D printer, etc. Although not exemplary, I had an enjoyable college life.
My future plans are undecided, and what I need to do now is to gain the physical strength to be as active as anyone else.
Started to sell files for 3D printing
About 2 months ago, I started selling STL files for 3D printing on a Cults. This has been going better than I expected, and I have sold more than 50 pieces of data for 300~400 JPY in total, earning enough to cover the maintenance cost of the 3D printer. Thank you so much.
If you are interested, I would be happy if 3D printer owners reading this could purchase the data and play with it. I also have some free data available to the public.
I will exhibit at Design Festa vol.58
I will be attending Design Festa in Tokyo on November 11-12, 2023.
Summary of my creation on September
Trammel of Archimedes
I 3D printed a mechanism called “Trammel of Archimedes”. It was designed as a print-in-place model with the sliders and other components assembled and 3D printed.
This is a puzzle known as Dudeney’s dissection. Hinges connect a dissected square and transform it into a regular triangle. Based on that puzzle, I 3D printed the frame with white TPU (a flexible material) and fitted four-colored shapes into it. After posting to X (Twitter), I realized that I seemed to have made a mistake in the dimensions while drawing, resulting in a distorted square.
Alternating red and blue shapes rotate to form a tessellated pattern. Like the previously mentioned Dudeney’s dissection, it is constructed using a TPU frame.
Yoshiaki Araki .『M.C.エッシャーと楽しむ算数・数学パズル』
1-DOF planar mechanism constructed based on regular polygons
From the central regular polygon, movable parallelograms are recursively placed, forming a mechanism with the shapes in the gaps between the parallelograms as rigid bodies. I might explain in detail in a project article later on.
This is an animation of a mechanism based on regular triangle.
Animation and 3D printed model of a mechanism based on regular pentagon.
Regular hexagon (deformed)
This is a variation of a mechanism based on a regular hexagon, where each edges has been replaced with a similar curves.
Spatial linkage mechanism that has cubes as link
Spatial linkage mechanism that has cubes as link.
Eric Aberg. https://www.youtube.com/watch?v=JaGOefhfipA
This is a kaleidocycle printed with TPU. You can play with it by spinning it around. There’s a 60-degree overhang, and printing cleanly with TPU is challenging, resulting in some rough surfaces on the piece.
You can download the STL file for free from the following website.
This is a structure constructed by connecting a cube with tape. I was inspired by posts from Gerard Westendorp and Martin Schwab on X (Twitter)
Added 8 cubes to the previous structure.
Gerard Westendorp. https://x.com/GerardWesty31/status/1627062172164689923?s=20
Gerard Westendorp. “Hinged polyhedra and hinged Tessellations”. https://westy31.nl/Hingedpolyhedra/Hingedpolyhedra.html
Martin Schwab. https://x.com/MartinSchwab9/status/1627401247266422785?s=20
These are 1-DOF spatial linkage mechanism composed by prisms.