I created a negetive cylinder in a model so that I could add weights, but for some reason the Bambu slicer painted an area around the negative cylinder the base color and ignored the color changes I made in the model. This would result in 675 filament changes. How can I fix this so that the negetive space follows the 3 color changes I have made in the model which would eliminate all but 3 filament change saving a ton of time and poop?

Our IKEA TACKAN soap dispenser kept sliding around the sink or getting moved to other surfaces, like the top of the toilet. I ended up designing a simple holder that fits the TACKAN perfectly — minimal, stable, and just enough to keep it where it belongs without calling attention to itself. It prints cleanly with no supports and works well in PLA or PETG. Simple problem, simple solution — one of those small prints that quietly improves everyday life. Would love feedback or suggestions 👍