Two by Martin David Kruskal

The “Geometrics” group of models starts with these two by the son of Lillian Oppenheimer: Bichromatic Square and Tripod.  Both sets of diagrams are hand-drawn with hand-lettered instructions which I found a little hard to read.

I thought I remembered having seen the Bichromatic Square in the past, and I was right – the identical model is shown in “Origami for the Connoisseur” by Kunihiko Kasahara and Toshie Takahame, where it is called Coaster #1.  It seems to have been independently invented by Toshikazu Kawasaki, and is used as a demonstration of what Kasahara calls “Iso-area folding.”  By whatever name, it’s technically interesting to fold, but the resulting model is rather plain and won’t impress non-folders.  Paper with contrasting colors on the two sides is essential; I used a 6″ square with blue and fuschia-red sides.

The Tripod’s instructions are in a very unusual format, with the first page having three columns which give the folding directions in verbal, geometric, and diagrammatic form.  Folding presents no challenges.  The creator recommends using the finished model as a stand (as shown above, right), or building modular models with it.  I thought it needed some visual interest, so I used a 6″ square with a garish hexagonal print straight out of the Op-Art 1960’s.

 

 

 

 

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s