I have a model that has a small 1.2mm hole in the middle. I slice it and in the previews it literally shows the nozzle following the appropriate path to resolve it. But it keeps printing it as solid.
I’ve been trying concentric top surface 5 layers as it’s a sphere.
Nothing out of the norm in my settings. I just can’t seem to find the source of the problem. Is it in the model which I exported as a 3d print from Fusion 360.
Any ideas ?. The print has no hole even though the image looks like it that’s like an artifact and not a 1.2mm hole
Holes under ~1.5mm have a chance of closing up during print with 0.4mm nozzle. I haven’t tried 0.2mm nozzle, perhaps you’ll have better luck with that. Otherwise, increasing hole size to >1.5mm should help.
When the extruder extrudes in a circle, the radius described by the extruded plastic is shorter on the inside of the circle and longer on the outside. The nozzle actually moves “slower” relative to the inside of the circle compared to the outside of the circle. The flow can’t be adjusted for that, the nozzle extrudes like both sides of the extrusion are extruding at the same speed. So the plastic towards the inside of the circle squishes inward and the opening gets smaller. And the problem gets worse the smaller the hole is or the larger the nozzle is.
There’s actually a setting in the slicer to account for this. XY Hole compensation or something like that, can’t remember, not where I can fire up the slicer to look.
haha. I’m in a constant struggle expecting Nasa quality with what many would consider a glorified toy…but damn it’s impressive what this machine is and doing
