PLA CMYK

Test color card made with 0.08mm layer height overlay, using PETG CMYK (cyan, magenta, yellow, white) and black. The TD values of the 5 colors are shown in the 0.08mm test block: cyan (4), magenta (5), yellow (7), white (9), black (0). Black can completely cover with just one layer.

The monochrome parts are combinations of one of cyan, magenta, or yellow with black and white, totaling 2 sheets. One sheet is only overlaid with white, and the other is overlaid with both black and white.

The two-color parts are combinations of two of cyan, magenta, or yellow with black and white, totaling 7 sheets. Taking cyan and magenta as an example, one sheet is cyan and magenta overlaid without white; 3 sheets are cyan and magenta with white/black combination ratios of 1:3:1, 2:2:1, 3:1:1, meaning white/black has only 1 layer; 2 sheets are cyan and magenta with white/black combination ratios of 1:2:2, 2:1:2, meaning white/black has 2 layers; one sheet is cyan and magenta with white/black combination ratios of 1:1:3, 1:1:3, meaning white/black has 3 layers.

If you only have a four-color kit, you can remove black first.

The effects of CMYK kits from different brands will also vary. I have previously tried Qipang and Sanlu PLA, and this batch of PETG is from Wally. If you use kits from other brands, please share pictures.

Theoretically, any two filaments with TD values higher than 4 can be mixed in this way. I have not yet tried combinations other than CMY. If you use kits from other brands, please share pictures.

Besides CMY, RGB should also have a similar effect, but I haven't tested it yet, and color overlay consumes filament very slowly.

[Because the purge tower could not be uploaded, it was turned off in the 3mf file. It's best to enable it before printing. When arranging the plates, space has already been reserved for the purge tower.]