Infill is not supporting the print
Hey guys, I have a little problem here. Namely, the infill collapses in itself. Actually, it should be on the same level as the outer wall, but you can see in the pictures that it is collapsing.
I use a nozzle with a diameter of 0.8 mm and print PLA+ with 220°C at 25 mm³/s at 55°C print bed temperature. The infill pattern is triangles. Cooling at 100%. But I also have to save material. Do you have any suggestions for me?
8 Replies
With a large nozzle, maybe you have to turn down infill speeds?
Do you have experience with the big nozzles? Turn down speed for better cooling maybe? Or where are you pointing at from the physics point of view?
i have no experience with big nozzles. I'm basing my idea on two things. The perimeters are standing up find, and slicers usually print infill faster.
everything is printed with 20mm³/s. the speed is calculated through the max flow.
What is the layer height of the Infill? My theory is, that the layer height is too large, so the overlap with the previous layer is too small and the Overhang area is large, thus the infill collapses. In the official slicer profiles infill combination is turned on, so it is larger than your set layer height. It probably doesn't even benefit print time, since you hit the volumetric limit very fast. I assume the print speed is quite low.
I'm not sure what that infill pattern is, but it definitely doesn't look like the triangle pattern that you get from PrusaSlicer or any of it's forks cause that looks like this
what you have there looks like cubic, except it's not laying the full pattern down every layer and instead alternating it for some reason
try a pattern like Gyroid or TPMS-D
I print most things for work with a 1mm nozzle and haven't had any issues with those two patterns at 20 to 30%
any less than 20% with big nozzles tends to be pretty hit or miss for how clean the top layers come out cause you're extruding so much material that the sheer weight of the material causes some sag when bridging
It’s the adaptive triangles from orca slicer