Solid Under Translucent Removed By Slicer

How can I prevent BambuStudio from optimizing parts of an object underneath transparent filament?

What Is Happening


layer immediately beneath yellow


first layer of where yellow should be is now mostly replaced by the clear, since the slicer thinks that’s all you will see

  • I have clear translucent filament overlaying a solid color filament.
  • The slicer thinks it should optimize the solid color filament out, and completely removes it.
  • Each filament is defined by a different part of an assembly.

What I Want to Happen


transparent over yellow


transparent hidden to show the desired yellow area

  • the underlying solid color part should retain its filament assignment and not be optimized away.
  • the clear translucent filament should print over it, so that the color shimmers through in the final product

Any thoughts as to how I can get around this?

In the objects panel reorder the parts.

Move the transparent part below the yellow part.

The bottommost part has priority working upwards through the part list.

The lowest part will print everything, the next one up will print those parts not obscured by the one(s) below. This continues right to the top part.

You parts need to be designed so their overlaps do actually overlap.

If you wish to see some yellow behind the translucent part, the translucent part must be thinner than the yellow part so the overlap has some printable area.

Note, I can’t tell of this is meant to design at the top or design at the bottom.

If the beer mug is the topmost, reverse everything I said above.

Beer mug top facing

  • brown
  • yellow
  • translucent

Beer mug bottom facing

  • translucent
  • Yellow
  • Brown

The slicer isn’t trying to optimise anything, it just tries to use the order of your parts believing you chose the priority for overlapping model parts.

If two parts share the same space (overlapping) the order of parts determines which will be printed.

2 Likes

That did it! thank you, I wasn’t aware of that feature.

You are welcome.

In my early model design life I created a lot of coasters.

I really struggled with this and eventually worked it out. I didn’t have the forum back then to as, as i didn’t know it existed.

Nice! I like the idea of overlaying clear especially on a design like that coaster for the mug.

Would you mind posting a photo when you get them printed? Curious how that looks. TIA if you can!

1 Like

Absolutely, this is a kind of challenge coin for our Pickleball club. I will provide final results after I figure out how to swap out colors during the print process, limited by only one AMS.

This is what I designed it as:

2 Likes

I think that’s a really cool idea. I haven’t seen that yet here. :+1:

1 Like