What is the best solid parts setting (100% infill)

I want to maximize the impact resistance of Polymax PC. I am currently printing 3 mm thick parts with the following setting.

  • 0.4 nozzle
  • 0.2 layer height
  • 3 walls
  • 100% infill (Rectilinear)
  • 50% wall/infill overlap
  • annealing 100˚C for 2h

Any advice or suggestions to maximize the impact resistance?

Thick walls. Thick top and bottom. Use a 0.6mm or 0.8mm nozzle. Print slower and use less cooling fan. The idea is to melt the different layers together as much as possible.

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Thank you so much for your comment! I thought the faster the better because it keeps the layers temp. I will try your suggestion.
Do you think only walls (filling with walls) also work?

yes. I believe so, but hopefully others here will chime in as well.

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I agree with these tips, bigger nozzles help slightly with fusing layers together and reducing internal gaps (weakspots). Setting wall count very high (so it basically becomes solid concentric infill) also helps.

If you’re willing to experiment you could also try embedding metal (or whatever else, carbon perhaps?) Parts into the print by having it pause at a certain layer height. That would take it to a whole other level.

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That’s a very interesting suggestion that I’ve never heard before. Bravo!

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