3D Printing Free 3D printed fin can design for HPR

Discussion in '3-D Printing and Related topics' started by Ben Martin, Nov 29, 2018.

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  1. Feb 20, 2019 #61

    cwbullet

    cwbullet

    cwbullet

    Obsessed with Rocketry Staff Member Administrator TRF Lifetime Supporter Global Mod

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    I absolutely love this design. I am now printing it in Pink ABS.
     
  2. Feb 20, 2019 #62

    Ben Martin

    Ben Martin

    Ben Martin

    "That guy in the hall building a rocket"

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    Thanks. The one that you printed for me will be getting its first flight test in a week, looking forward to seeing how it performs.
     
  3. Feb 20, 2019 #63

    cwbullet

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    Did you figure out what type of mailing tube?
     
  4. Jun 10, 2019 #64

    Ben Martin

    Ben Martin

    Ben Martin

    "That guy in the hall building a rocket"

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    The fincan performed flawlessly on its first test flight. The payload tube did not have the same fate. Really late ejection charge did some damage, thankfully it's easily repairable. Happy with the 3D printed fin can so far, thanks for printing it cwbullet! Screenshot_20190608-204650_VideoFramePlayer.jpeg Screenshot_20190609-001316_VideoFramePlayer.jpeg Screenshot_20190609-001425_VideoFramePlayer.jpeg Screenshot_20190609-001657_VideoFramePlayer.jpeg 20190608_213123.jpeg
     
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  5. Jun 10, 2019 #65

    vcp

    vcp

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    I don't think a lot of people have appreciated that yet. Unless you induce some warp or have a seriously mal-adjusted printer, printed fin alignment will always be 'perfect'. Roll induced by fins should be gone - stresses on the model should be reduced.
     
  6. Jun 10, 2019 #66

    Ben Martin

    Ben Martin

    Ben Martin

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    Exactly. There was practically zero roll during the takeoff.

    Video of flight:

     
  7. Jun 10, 2019 #67

    cwbullet

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    Great flight. Now, you juts need another tube.
     
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  8. Jun 10, 2019 #68

    Ben Martin

    Ben Martin

    Ben Martin

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    Just have to unscrew the "damaged" one and replace it, simple repair.
     
  9. Jun 10, 2019 #69

    cwbullet

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    How do you order those tubes?
     
  10. Jun 10, 2019 #70

    Ben Martin

    Ben Martin

    Ben Martin

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    My dad owns a graphics shop so he has a bunch of them laying around. I use the 3in tubes with thinner walls. I'll try to figure out an comparable brand.
     
  11. Jun 10, 2019 #71

    cwbullet

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    What color is the exterior?
     
  12. Jun 11, 2019 #72

    Ben Martin

    Ben Martin

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    This tube was brown on the outside with a white film on the inside. The other rocket I made used brown on the outside and inside.
     
  13. Jun 11, 2019 #73

    vcp

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    That video should sell a hundred printers. Even a master craftsman can't get fillets and bevels exactly symmetrical.
     
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  14. Jun 12, 2019 at 6:19 AM #74

    liv3mind

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    Thank you, just started a print of this, no idea what I will use it for yet
     
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  15. Jun 12, 2019 at 3:24 PM #75

    hobie1dog

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    Makes you wish all rockets had these. Much time could be saved, allowing us to spend valuable time doing other things in life.
     
  16. Jun 12, 2019 at 4:48 PM #76

    cwbullet

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    It was one of the easiest prints but it does take a long time to print and a little elbow grease to sand.
     
  17. Jun 12, 2019 at 5:15 PM #77

    Ben Martin

    Ben Martin

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    It should be able to fit standard 3in tubes (fiberglass and LOC) but I'll make different variations just incase. I will also be scaling it up to a 4in version and below 3in if anyone has requests. The long print time is worth the great flights, plus it's an easy print with no extreme overhangs.
     
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  18. Jun 17, 2019 at 5:36 PM #78

    liv3mind

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    Successful print, sized for 3” MAC canvas. Thanks for an awesome file!

    IMG_0551.jpg
     
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  19. Jun 17, 2019 at 10:42 PM #79

    Ben Martin

    Ben Martin

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    Looks great, hopefully you will get some good flights out of it!
     
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