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Japanese Scarf Joint/Splice

3D model description

####Japanese Scarf Joint/Splice

The Japanese Scarf Joint (JSJ) is a simple and functional joint or splice, which connects two wood beams into a longer one. It is mathematically appealing – a direct application of rotational symmetry of a rectangle (including a square, of course). To make a 3D design, one can just play around or make use of the rotational symmetry, starting from the center of rotation. There are many variations in terms of the connector length and the middle pin (key) shape. According to Sumiyoshi and Matsui, it can be properly called a “Pinned Rabbeted Oblique Scarf Splice.”

Among the files are a few Scarf Joints of various thickness and dimensions. The loose version can be printed in one piece. The filenames speak for themselves. Have fun!

1. Sumiyoshi, Torashichi., & Matsui, Gengo. (1991). Wood joints in classical Japanese architecture (F. Kovacs, Trans.). Japan: Kajima Institute Publishing.

  • 3D file format: STL



Designs 213
Downloads 9004

STEAM educator, learning from and working with K-12 STEAM teachers to explore new ideas of teaching and engagement. I firmly believe ART is at the core of STEM learning or all human learning! I owe my ideas and designs to the hundreds of K-12 children and teachers and university professors I have had the pleasure of working with, in multiple disciplines-- math, science,engineering language arts, social studies, early childhood education and more! All mistakes, of course, are mine! There is no warranty or liability whatsoever implied or explicit behind the designs or ideas. They are all posted for their potential educational values.

When working with children, please strictly observe all safety and health procedures! Please refer to the NSTA safety guides:




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