The 3d model given is my base coaster it has no pattern but can be modified if you wish however if reposting anywhere you need to credit me.

The pattern on the coaster depicted in the images and print profile provided is created in slicing software. To add this effect in your slicer or with your settings follow the steps below:

1. Navigate to print settings and then infill.

   2. Now select the top infill option and select octogram spiral

The original coaster has a diameter of 95mm / 9.5cm but you may resize as you wish

The effect on the coaster appears best when printing in silk or multicoloured filaments.