14 replies

Consistent gaps between walls with proper EM and PA on VC4-400 hybrid.

I consistently encounter gaps between my walls. I've attached photos of the issue, along with a photo of the Pressure Advance (PA) pattern test where the value I use is circled. Flow and PA are tuned, and I'm printing with Polymaker ASA at 260°C, with the max flow set to 34 mm³/s. I'm using a solid TC 0.5mm nozzle with associated layer widths, and slicing with OrcaSlicer. The first layer and outer walls look good, and while the top layer is slightly over-extruded, it's still acceptable. I know I can increase the total flow and reduce the top layer flow, but that feels like a band-aid solution, and I suspect there's another underlying issue. I've also attached the 3MF file in case you want to review the specific settings. I'm running fairly standard speeds and accelerations (attached). it'ss bad enough that the walls can just peel away from each other. im open to suggestions and experimenting, any help is greatly appreciated.