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PLA to PVA splice snaps when loading into extruder.

I have a Palette 3 Pro with a Prusa Mini+ printer.

I’m using Overture PLA+ as the outgoing filament and 3D Printlife E PVA as the incoming filament using splice settings of 5, 5, 0. It seems to make strong enough splices that survive all the way through the output tube, but as soon as the extruder grabs the filament when loading, the PLA to PVA splice snaps. I can’t break the splice by hand, so the extruder must be putting a lot more force on it than I can.

Any suggestions on what direction I should go with my splice settings? Or is it possible to slow down the extruder when loading filaments?

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Hi @stcrowley, thank you for sharing your experience with PLA and PVA thus far. Would you be able to try splice tuning with slightly reduced compression, and increased cooling? Perhaps starting from 3,3,3, and increasing heat and cooling incrementally but keeping compression at 3. Please test the quality of these splices, before updating the material profiles in your slicer with the settings.

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I tried the 3, 3, 3 setting and the splice failed on the way out of the output tube. I found that 5, 5, 3 setting worked and managed to print a Hilbert Cube. I then managed to break the hilbert cube, but that’s likely not a Palette problem.


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STCrowley will be eternally grateful.
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