Cat Coasters 02

Here are four more cat coasters based on the 17 plane groups. See Cat Coasters 01 - thing:54736.

The four plane groups are: cm. pmm, pmg, and pgg. The number of symmetry elements increases as we procede through the plane groups. These groups contain combinations of reflection lines and glide reflection lines. The four sets of files for dual extrusion are:

cat_coaster_cm.stl and cat_decoration_cm.stl
cat_coaster_pmm.stl and cat_deocration_pmm.stl
cat_coaster_pmg.stl and cat_decoration_