Losing multi color after slice

Bambu Lab X1 Series Bambu Lab X1C
1

Hello everyone, I am trying to print a coaster with two colors, in the Prepare window it all looks ok, but when I slice it, it makes it with only one color. Please help !

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12110×1239 261 KB

2
22109×1231 287 KB

3
32107×1234 283 KB

4
42106×1228 269 KB

2

Welcome to the forum.

Can you upload the .3mf file for this model?

3

coaster.3mf (1.7 MB)

4

It looks like the constiuent parts of all colors end at exactly the same z-height and that all parts are overlapping. So you are giving the slicer a choice. If you move the white Cylinder down a tiny fraction of a mm, the preview should look better and probably enforce proper color resolution after slicing. Alternatively, you can first subtract the black from the white cylinder, and then add the original black parts back into the cavities.

5

There are a couple problems I see.

First, the black sections are not thick enough for the slicer to register them.

Once these sections are scaled in Z to 1mm the slicer will included them.

The problem then is that many of the sections are too small for the printer to print…

image
image786×752 111 KB

6

I haven’t had chance to review you 3mf, but, the following might help.

I have designed and uploaded a couple of hundred coasters, in two, three and more colours, a South African flag with 6 colours.

  • Coaster diameters are often 100mm
  • Thickness is often 2mm
  • The above aren’t hard and fast, just most common.
  • The artwork is usually 1mm thick
  • A background (solid colour) is usually the remaining 1mm
  • When you order the parts in BS, the top most is the background, the bottom is the topmost
  • You are printing upside down (very common) to gain the texture, up and down are relative terms
  • You have a significant number of parts for a two colour model, it is common to group colours into grouped stls, white one part, black another, sometimes the 1mm background a third
  • The above grouping isn’t a requirement, just often makes life easier.
  • As you are printing upside down, remember to change the X-a is as well as the Z-axis or it will be the wrong way round when printed, looking up from the bottom of the build-plate should look correct if the X-axis is correct
  • The sliced view may well not look correct, but, it will look closer to the prepare view than the your preview shows, as mentioned by @EnoTheThracian it is likely you have the background overlapping the foreground elements.

Download any of my coasters to see how I assembled them.

https://makerworld.com/en/%40MalcTheOracle?keyword=Coaster

You will also find a few that print with more than 4 colours despite only requiring a single 4 colour AMS.

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