Konubinix' opinionated web of thoughts

Printing a Simple Triangle, Not That Easy After All

Fleeting

tag: learning 3D printing

That should be easy enough. Right?

untitled.stl

untitled.blend

This is the result

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a.png

Is the nozzle clogged?

I use cleaning filament and brushed the nozzle head, without much success.

Actually, this happened after updating cura. It asked me to reconfigure the printer. Did I forget something, like setting the extrusion multiplier? I tried increasing the multiplier to 110%. The quality increased, but the print was still not good enough.

Do I take advantage of this situation to try another slicer, like slic3r or prusaslicer?

I got to this task a few month later.

First, I totally cleaned the nozzle. I tried running the initial rocket model and it was quite nice.

Then I used slic3r and the triangle was also very nice but now the top layer is really bad.

a.png

I tried,

  1. increasing the extrusion multiplier,
  2. increasing the top layer number of layers (up to 5),
  3. increasing the temperature,

I then realized then that the infill did not stick with the wall. May be slicer is a bit too fast for my printer. Most likely fixed by this.

I also realized the triangle edges where too sharps. I could bevel it using the weight mode and adjusting the weight of the edges, as suggested in

https://blender.stackexchange.com/questions/147370/bevel-only-certain-edges-with-bevel-modifier.

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triangle.blend

()

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a.png

I could not find a way to have a nice upper layer, without small holes.

a.png

I tried

  • increasing the infill/perimeter overlap,
  • increasing the temperature,
  • lowering the top solid layer speed,
  • changing of filament,
  • increasing the extrusion width,
  • tightening the belt,

Some of those mitigate the issue but don’t fix it.

a.png

Also, the issue always takes place at the same location, while nothing is wrong in the gcode. I assume my printer is just not good enough. Or the filaments are all pretty old and wet and of low quality.

Notes linking here