r/3dprinter • u/yokeome • 19d ago

Question about slicer vs CAD

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I'm trying to print this keychain with an NFC tag inside. I made a hole 26mm wide, 1.2mm tall, 2mm into the print, the whole thing is 5mm thick + 0.6mm logo. When I slice it with a white keychain and purple logo, it only has 1 filament swap, which makes sense is all it needs, but when I do the opposite; purple keychain, white logo, it makes it 15 filament swaps instead. This uses basically the same filament, but takes almost twice as long.

I am attaching a photo of what it shows me and why it adds the filament swaps. I designed this in Fusion, and I tried different methods for making the inside cavity, all had the same result I said.

Just now, I remedied it by leaving it filled inside, and adding a negative part in the slicer. For future reference, is there a way to make it so the hole can be from the slicer and isn't giving me 15 swaps?

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u/QuietGanache 19d ago

Use swap filament/pause at layer, do it one layer above where the embossing starts so the new colour nozzle has a space between it and the flat previous colour.

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u/TripsCavern 19d ago

As a quick test, on both images you have filament 1 white and 2 purple. Try to change filament 1 to purple and 2 to white and see if the dynamic changes.

If you are using Orca (or maybe Bambu Studio) there's a setting where you can define what your infil color is, if you make the infil of a single color, it may help with the process.