Hello there,

Its quite fun to print this one as you can mix a bunch of different colors when printing it. 

For printing parameteres I've used the following,

• Material: PLA
• Layer height: 0,25mm
• Walls: 3 
• Top/Bottom: 4
• Speed: 40mm/s
• Nozzle = 207°C
• Bed = 75°C (quite cold here)
• No supports

*** Prints in about 5h and uses approximately 43g of filament.

Following these parameters, you should need to pause the print at these intervals (set up timers):

• 18' - From blue to green
• 1h02' - From green to red
• 1h16' - From red to white 
• 1h30' - From white to red
• 1h48' - From red to blue 

*** As PLA melts with heat, before using it as an ashtray, make sure to apply some kind of epoxy on top of the base drawing.