The Expanse - Rocinante Pinup Logo Coaster(remix for MMU3)

I remixed this awesome design by @Dustin to enable MMU3 printing on the same layer.

Printed on a textured print sheet to help hide any layer lines. If printed on a PEI smooth sheet, you can touch it up with a heat gun to get rid of any print marks from the bed or shoot it with Krylon Matte Clearcoat for a smooth finish.

I cut up the original STL in the slicer to get individual layer STLs. This is key for face down multicolor prints.

Then flipped the model and split it.

Then moved all STLs down to the bed surface.

Then chose the colors for each part.

Then dragged parts up and down in the part list pane on the right to get color priority correct.
 

I also increased Purging Volumes when switching colors to ensure white is white. Black takes more purging to clear out the nozzle vs bleeding over through the next color.

Critical tip for a good finished print!

I would suggest watching the print for the first layer. When it switches from white to black, go over the bed to make sure there are no white strings on the bed as they can get mixed in when the black goes down… and so on for the first layer. I use a stiff brush to actually brush the print in a few different directions to tease out strings which could get dragged into other colors of the print. Spending a few minutes doing this is worth it for a final clean print! The difference between good and great is in the details. :)

I cut up the original STL in the slicer to get individual layer STLs. This is key for face down multicolor prints.