papalonian

Have you verified it’s not a model issue? Also, is it on all top / surface layers, or only the final layers? Like if you printed a solid staircase, would each step have the surface messed up or just the top one?

The rest of the print is perfectly fine but the top layer is having issues? I would check the settings that effect only the top or top / bottom layers.

You said it’s a new filament, is it a new profile for the new filament as well or have you successfully printed other filaments with the exact same settings?

I’ll second the other comment, Ellis’s guide is where I learned the trick above from. 90% sounds like it’s pretty low but I’ve had filaments and nozzles require as low as 83% for adequate results.

Have you adjusted your flow rate? Slicers are usually pretty close to spot on for 0.4mm nozzles but in my experience going up or down in nozzle size usually results in having to change the flow % pretty significantly. In addition to what others have said about minimum layer time / heating the parts up too much, I think you may be over-extruding as well.

The test I like for testing flow is to print a handful of cubes ~15 layers tall, with 2 bottom layers, 3 infill layers, and 10 top layers. Print each one at a different flow rate (in cura you can change settings per part to print them all at once) and look at the top layer when it’s done. You don’t want any bulging from between print lines (over-extruding) or any gaps in between them (under-extruding).

I’m sorry if my comment came across as disparaging to your build - that was not my intention! It does look very sturdy. My former roommate had two cats that were absolute balls of chaos, one of them would almost certainly be trying to chew her way through the screen. My dog is way too big for something like this, but her personality would cause her to launch herself full-force into it at the first sight of motion outside.

I’m sorry to hear she has taken a fall in the past, it’s good to see that she seems to have made a good recovery and isn’t afraid to still enjoy windows.

You have far more faith in your pet’s instinct for self-preservation than I ever could place in any animal. Lol. Very cool, and I’m sure they love it

Yup. I don’t have a tube (really should make one), filament sits on top of my enclosure and just goes straight into my extruder, and the following morning after printing old PLA there will be PLA confetti all over my print bed and a tiny bit sticking out of the hot end.

There does seem to be a leveling issue (based on the difference in bed adhesion on the four pieces), but I’m kind of having a hard time figuring out what’s going on with the band that goes around the outside. Can you upload a screenshot of what this looks like in your slicer? And is this just one layer?

The article mentions four patents:

9,168,698 / 10,556,381 - Force detection on the printhead, ie when your printer homes the z-axis by touching the nozzle against the build plate (would not include conductive or magnetic sensors)

9,421,713 - Using purge towers in prints with multiple filaments or extruders

7,555,357 - Not really sure exactly what this describes, so here is the patent’s abstract:

A method of forming a three-dimensional object using an extrusion-based layered deposition system, the method comprising generating a build path for building a layer of the three-dimensional object, where the build path defines a void region. The method further comprising generating at least one intermediate path in the void region, and generating a remnant path based at least in part on the at least one intermediate path.

Seems to include slicing objects that are not completely solid on the surface (ie a cube with a hole through the center).

So, with this precedent, Stratasys can go after… nearly every printer on the market. Cool

How does this not meet the definition of 3d printing? The machines that do this are legitimately just giant core-XY machines with concrete hoppers instead of a hot end

They can also… Get a portable cd player

This is the first time I’ve ever seen anything about Nasir being horny. I literally only know the name in association with shit copper

“for a half-liter” or “halfa’-liter” don’t sound too bad actually