Let's Twirl Again ....

This customizer will let you build a twirl pattern of whatever size you like, along with a backing plate to add contrast to the print. The pre-created STLs are for a 120mm square mat of depth 3mm.

The customizer will let you fiddle with the colors to get a feel for some alternate constrasts. You can create a custom thickness, specify the layer height you intend to print with, and the number of base layers you want. I've printed with 3 base layers.
(For some reason, the customizer doesn't wan