1 Topic by driggers

  • driggers
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  • Registered: 2012-10-07
  • Posts: 162

Topic: Can you 3D print working airfoils using generated infill?

I am trying to make a small airplane, but since I don't want to be too invested in the project, I want to just make the general shape of the wing, chop into pieces that fit on my SD2 build area (1 for each wing, at the moment), and use, perhaps, 5% honeycomb infill instead of some kind of manually design structure, as well as keep to 1 vertical shell.  It will be fragile, of course, but I only care that it's light enough to fly with micro RC plane components (brushed motors and 1s lipo battery) at reasonable speeds.

All the projects I've seen look rather involved.  Any thoughts?

SD2 Sanguinololu 1.3a atmega1284p, wood platform, lawsy's carriages, braided fishing line, pallet wood overhead spool mount, carboard/magnet enclosure, glass bed, E3D v6, bed levelling knobs, extended z-stop, 25A DC-DC SSR for bed heater, everything fixed to the SD2 frame, marlin firmware with some adjustments and extra failsafes enabled.  I'll never give up on you, little printer that could(n't)!

2 Reply by 3Dex

  • 3Dex
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  • Registered: 2016-01-11
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Re: Can you 3D print working airfoils using generated infill?

Yes this is definitely feasible. It would be easy to design say a 100mm aerofoil section and then you just print as many of these as you want to make a wing. You could also probably get away with a hollow wing if its small enough. Can you give more details on how big you wanted it?

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