Options for 4-square puck modules for unit origami

Since 4-square units are an even number of squares in length, shingling is out for hidden edges. The splicing must be brick-laid with an odd phase shift (1 is the only option since 3 is really the same thing.) Enantiomorphs are again required.

The good news is for the case with strapped-down edges. This 4-square unit can be simply shingled.

A 4-square puck module for unit origami.