Ultimate Geek Drink Coaster

Single Extruder and filament change to be done at Layer 22. This is best done using Cura 'Filament change' option in 'Post Processing' as per screenshot. That only works when your firmware has 'Advanced Pause Options' enabled. It is worth messing with your firmware to get 'Filament Change' option in cura working.

Important to know before printing:

Two color printing with Cura 'FIlament Change' highly recommended (Layer 22 if using 0.2 layers)

Second small image recommended (See '2colorwipedot.stl') On color change you want it to first print to this 2nd image (Round circle) as color changes sometimes put down a blob where they land. See screenshot showing the cura tip showing where it will land in preview mode.

Short video showing how to get best color change using Cura: https://youtu.be/rxGuHn6P9TE

I use this small circle on all my multi-color prints. You can risize its height to suite each print.

03/29/2021: Uploaded Holder for 4 coasters(Also see pic). "Circuit Board Coaster-Holder(4).stl"
05/08/2021: Uploaded Holder for 6 coasters (Or 4 with cork backing) "Circuit Board Coaster-Holder(6).stl"

I have found cork self adhesive sheets in Dollar Tree Store recently and these are good for below any printed coster. I mainly did the larger holder above to hold my 4 coasters with cork backing. (Apply sheet, cut around edge - easy)

This would look good in the following color combinations
Green/Gold
Dark Green/Light Green
Red/Gold
Black/Gold
Black/Silver
Blue/Silver

Maybe some others.

See my other coasters:
Heineken 'Your Name' Coaster: https://www.thingiverse.com/thing:4861554
Starbucks 'Your Name' Coaster: https://www.thingiverse.com/thing:4844137
Spooky Starbucks 'You Name' Coaster: https://www.thingiverse.com/thing:5408489
Heineken Bar Coaster: https://www.thingiverse.com/thing:4855198
Victoria Bitter Beer Bar Coaster: https://www.thingiverse.com/thing:4865446

No Support Needed
No Raft Needed (I did use a brim just as precaution but really also not needed if you get good adhesion and don't have issues with curled corners etc.)

Feel free to print, Remix, sell etc - I dont restrict my designs.
My only ask is to post your makes - I like seeing them.