I needed a sign. If you print the stls I've upload, the base plate is 1.5 mm thick, you that where you want to change filament colour.
beerisgoodsign.stl | 744.6KB | |
customizablesign.scad | 1.7KB | |
isitbeerthirtyyetsign.stl | 336.4KB | |
watchfordrunkssign.stl | 389.1KB |