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How do I improve print quality on the underside?

dislegaldislegal
in Questions & Answers
I'm wondering how to improve on the smoothness of the underside of a print with a non-flat base. e.g. If I print a sphere, even with supports, the bottom 1/3 will look cactus whereas the top 2/3 will come out great. It's like it doesn't look great until it hits a certain angle. Then the rest of it is nice and pretty.
Do I need to change settings in Repetier Host? Or is what I'm asking related to the firmware and calibration of the printer? Is there any good test prints I can use to tweak it?

Printing via Repetier Host on a Mendel90 (Marlin).


Comments

  • RepetierRepetier
    Steep angles are always a problem and often look comparative ugly. You need a good print cooling to get it a bit better. For a perfect look you need PVA as support and print with no gap. This is more physics then software related.
  • dislegaldislegal
    Ok, thanks @Repetier! :)
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