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  1. #1
    Join Date
    6th November 2015
    Location
    Canada, SK
    Posts
    307

    geometric rocket challenge - quarterly challenge - first quarter

    Hello TRF!


    This is the official thread for the TRF Build of the Quarter! These will continue as long as we have interest.


    Da rules of the contest:
    1. The "quarter" runs from now until midnight on March 31.
    2. All corners of the rocket must be angled.
    -This includes body tube, nose cone, and fins.
    -Excluded are any inner workings of the rocket.
    -In other words, the body tube and nose cone must be a square, triangle, or some other sort of polygon. (Attempting to call a circle a polygon with an infinite number of sides will not slide well with me. Nice try.)
    -Rockets are permitted to have rounded fillets and fin edges. The challenge is intended to get competitors to think outside of the normal tube shaped rocket.
    3. All rocket sizes are permitted, as well as all motor sizes.
    4. To enter the challenge, simply post in this thread, and start building! Build threads are encouraged, but not required.
    5. Launch the rocket! A launch must include a safe recovery.
    6. Starting March 24, please submit a video of their rocket in this thread. This should include at minimum a picture of the rocket and a video of a successful launch. Of course, if you have a failed launch, don't be afraid to submit your video! It'll make the rest of us feel better, and we won't laugh at you (too much).
    7. Competitors may submit their videos up until March 31, 23:59:59EST, at which point no further submissions will be accepted. All submissions will be placed into a poll which will be open to all forum members. This poll will run for 1 week. The scoring will be described in the poll when it is put up (the jist of it being that everyone gets 3 votes . The rocket with the highest score will be declared the winner.
    8. The above rules are intended to be followed by the spirit, and not the letter. That being said, any issues with the rules will be decided between the judges.


    Furthermore, if you're interested in donating a prize for the winner, please feel free to message either blackbrandt or I.


    If you have any questions in general, please leave them in this thread or message one of us.


    Can't wait to see all of your exciting designs!

    Last edited by mbecks; 10th January 2017 at 02:23 AM.

  2. #2
    Join Date
    6th November 2015
    Location
    Canada, SK
    Posts
    307
    blackbrandt will be helping me with organization and writing out the contest rules. a revised and more clear set up instructions will be set soon. until then these instructions will give you and idea what it will look like. If anyone else wants to help please send me a PM


  3. #3
    Join Date
    15th October 2015
    Location
    Mississauga Ontario
    Posts
    980
    Excellent. Good start.

    Hmmm what to do, what to do...
    Chris M.
    NAR 101470, MAAC, CRC
    L1 - Optima 3" - CTI H133 - 1189ft. - Geneseo, NY, May 28, 2016
    My YouTube channel

  4. #4
    Join Date
    5th February 2009
    Location
    Montreal, Qweebec
    Posts
    2,748
    yes, cheers!! good start..

    Now, to get the hands to do the mind's biding!!
    -paul

    NAR# 101258 - L1
    www.CRMRC.org
    I don't know the same things you don't know..

  5. #5
    Join Date
    26th June 2016
    Location
    Mobile, AL, USA
    Posts
    835
    Count me in!
    NAR # 37682

    All the weird kids are doing it!

    If at first you don't succeed... You're about average.

  6. #6
    Join Date
    30th January 2016
    Location
    US > OK > NE
    Posts
    1,988
    I'm in.

  7. #7
    Join Date
    25th October 2016
    Location
    Texas, United States
    Posts
    1,301
    I'm in.


    One question, though.

    Can my rocket be based on yottagonal prisms? (A septillion sides... well, a septillion and two if it were an actual prism, two septillion and two since it has a yottagonal prism hole...)
    I know my motor tube can and will be, but I don't know about the rest of the rocket.
    Last edited by Incongruent; 10th January 2017 at 02:14 AM.

  8. #8
    Join Date
    6th November 2015
    Location
    Canada, SK
    Posts
    307
    The contest description has been revised and written much better and more clear by blackbrandt, so thank you very much. Its all the same but might clear up any foggy areas. hope every comes up with some cool builds and this forum gets some tractions. feel free to post your sketches ideas ect, and invite others to join in.

  9. #9
    Join Date
    30th January 2016
    Location
    US > OK > NE
    Posts
    1,988
    Quote Originally Posted by Incongruent View Post
    I'm in.


    One question, though.

    Can my rocket be based on yottagonal prisms? (A septillion sides... well, a septillion and two if it were an actual prism, two septillion and two since it has a yottagonal prism hole...)
    I know my motor tube can and will be, but I don't know about the rest of the rocket.
    Only if you can prove it iteratively within an order of magnitude :-p

  10. #10
    Join Date
    6th November 2015
    Location
    Canada, SK
    Posts
    307
    Just curious. what kind of materials are you guys thinking of using? glue together balsa, folded paper?

  11. #11
    Join Date
    11th November 2014
    Posts
    615
    This will be interesting...let me see what I got...

  12. #12
    Join Date
    25th October 2016
    Location
    Texas, United States
    Posts
    1,301
    Quote Originally Posted by mbecks View Post
    Just curious. what kind of materials are you guys thinking of using? glue together balsa, folded paper?
    I plan on using cardstock.

  13. #13
    Join Date
    31st January 2013
    Location
    Atlanta, Ga
    Posts
    835
    I'll give it a shot
    I have an idea, just maybe not the time. It will be kind of basic if I get it done but the idea came to me immediately when I read the rules...it will not be a round tube.
    Bill

    I won't be wronged, I won't be insulted, and I won't be laid a hand on. I don't do these things to other people and I expect the same from them.
    John Wayne, The Shootist

    In the Hangar:
    A pile 'O' Fun

    On The Bench:
    Pieces 'O' Fun

  14. #14
    Join Date
    27th August 2011
    Location
    West Tennessee
    Posts
    2,495
    Yeeeeeeeehaaaaaaaaaa!*

    (* roughly translated: " I'm in!")
    It is amazing what you can do when you don't have a choice.

    Smart people learn from their mistakes.
    REALLY SMART PEOPLE learn from OTHERS' mistakes.

  15. #15
    Join Date
    3rd August 2011
    Location
    Reed City, Michigan
    Posts
    2,685
    I have a lot going on right now,
    But I'll see what I can whip up while wait times are happening.
    Provided I have bench space.

  16. #16
    Join Date
    2nd March 2010
    Location
    N.Haverhill,NH
    Posts
    7,030
    Hey.... a CONTEST!!!!!
    I like crazy idea contests.
    This one is cool for sure.
    I have had many ideas for a rocket of this sort.....IM IN!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    Big thanks to "mbecks" for taking on the challenge of running a contest.
    And, what would we (TRF) do without "blackbrandt"!
    He was a HUGE help and played a HUGE part in making the ODSBO such a big hit.
    Always stepping up to help...Thanks again BB.

    Good luck suckers........ha ha ha
    No cutting corners now, ....
    Last edited by Scotty Dog; 10th January 2017 at 04:36 PM.
    NAR 90998
    SAM 0322
    Give Blood!
    Everything there is to know , is to know what you don't know.
    Somedays its hard to stay centered on being eccentric.
    I like Fat-Bottomed Rockets
    Temple of the Dog

  17. #17
    Join Date
    6th November 2015
    Location
    Canada, SK
    Posts
    307
    Thanks for the support guys and I'm glad we got so many people joining in. My idea is coming from one of my favourite polygon things, star fox from a he N64. Not sure if I can pull that off.
    "no cutting corners". Lol

  18. #18
    Join Date
    26th June 2016
    Location
    Mobile, AL, USA
    Posts
    835
    I had to look that up... not being a gamer. Interesting. Good luck.
    NAR # 37682

    All the weird kids are doing it!

    If at first you don't succeed... You're about average.

  19. #19
    Join Date
    2nd March 2010
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    N.Haverhill,NH
    Posts
    7,030
    [QUOTE=TangoJuliet;1656427]I had to look that up... not being a gamer. Interesting. [/QUOTE
    Ha me too..that will be interesting.
    So many folds to this contest.
    NAR 90998
    SAM 0322
    Give Blood!
    Everything there is to know , is to know what you don't know.
    Somedays its hard to stay centered on being eccentric.
    I like Fat-Bottomed Rockets
    Temple of the Dog

  20. #20
    Join Date
    2nd March 2010
    Location
    N.Haverhill,NH
    Posts
    7,030
    Maybe think about thinking INSIDE the box on this one..
    NAR 90998
    SAM 0322
    Give Blood!
    Everything there is to know , is to know what you don't know.
    Somedays its hard to stay centered on being eccentric.
    I like Fat-Bottomed Rockets
    Temple of the Dog

  21. #21
    Join Date
    2nd March 2010
    Location
    N.Haverhill,NH
    Posts
    7,030
    Quote Originally Posted by Screaminhelo View Post
    it will not be a round tube.
    and pie are square.
    NAR 90998
    SAM 0322
    Give Blood!
    Everything there is to know , is to know what you don't know.
    Somedays its hard to stay centered on being eccentric.
    I like Fat-Bottomed Rockets
    Temple of the Dog

  22. #22
    Join Date
    6th November 2015
    Location
    Canada, SK
    Posts
    307
    LOL I guess rocket builders love there puns

  23. #23
    Join Date
    2nd March 2010
    Location
    N.Haverhill,NH
    Posts
    7,030
    Square Deal
    NAR 90998
    SAM 0322
    Give Blood!
    Everything there is to know , is to know what you don't know.
    Somedays its hard to stay centered on being eccentric.
    I like Fat-Bottomed Rockets
    Temple of the Dog

  24. #24
    Join Date
    26th June 2016
    Location
    Mobile, AL, USA
    Posts
    835
    Quote Originally Posted by mbecks View Post
    LOL I guess rocket builders love there puns
    Where puns?
    NAR # 37682

    All the weird kids are doing it!

    If at first you don't succeed... You're about average.

  25. #25
    Join Date
    15th October 2016
    Location
    Huntsville AL
    Posts
    669
    Quote Originally Posted by Incongruent View Post
    Can my rocket be based on yottagonal prisms? (A septillion sides... well, a septillion and two if it were an actual prism, two septillion and two since it has a yottagonal prism hole...)
    I know my motor tube can and will be, but I don't know about the rest of the rocket.
    Quote Originally Posted by dhbarr View Post
    Only if you can prove it iteratively within an order of magnitude :-p
    Sounds like a clever-pants circle to me.

    This reminds me of a story from my old Analysis II professor:
    -A senior design team wanted to impress the reviewing panel in one of their presentations and proudly stated that they had used an iterative series expansion and calculated the length of a critical member (~.5 meters) to 13 decimal places for precision, then double checked their work for accuracy. This was greeted with squints and a couple raised eyebrows until the Analysis prof said (here I'll type in my best Romanian accent) "So you're telling me that you have determined the necessary length to sub-nanometer resolution? I certainly hope your tolerance does not share the same scale because I cannot for the life of me imagine how you are going to fabricate to that precision......"

    Back on topic.
    This sounds like a legit use for my Secret Santa gift box (vv) but I'll have to sit this round of competition out. Looking forward to an assortment of flying oblongs!
    Click image for larger version. 

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    "I'm at least 70% confident about whatever I say (90% of the time)"- college me

    NAR 101195
    Level 1: Big SAM, 9/10/16

  26. #26
    Join Date
    18th October 2016
    Posts
    129
    I have my design done. This is going to be fun! (I'm sticking with an 18mm C motor for mine.)
    Last edited by GrouchoDuke; 16th January 2017 at 07:05 AM.

  27. #27
    Join Date
    2nd March 2010
    Location
    N.Haverhill,NH
    Posts
    7,030
    I think I need t look at this from a different angle.
    NAR 90998
    SAM 0322
    Give Blood!
    Everything there is to know , is to know what you don't know.
    Somedays its hard to stay centered on being eccentric.
    I like Fat-Bottomed Rockets
    Temple of the Dog

  28. #28
    Join Date
    3rd August 2011
    Location
    Reed City, Michigan
    Posts
    2,685
    Got my plans done for my design.
    To look at it, you will have to get Delta CAD.
    It's free, takes up little space on the HD.
    Get the free trial copy at www.deltacad.com
    Attached Files Attached Files

  29. #29
    Join Date
    7th August 2014
    Posts
    288
    I am curious, can I enter a rocket that I already started but have not finished? And for the sake of clarity, what if it was already built?

    Also my motor hooks are made of round wire... I also want to debate the "angledness" of ALL your corners... How sharp are they? Because even a knife blade looks rounded under a microscope...
    BuiltFromTrash
    First RMS Flight: June-17 2015
    Pringles Can Rocket
    G53-FJ-7 (29-40/120) 92 Newton-Seconds
    ~1300 Ft

  30. #30
    Join Date
    21st December 2013
    Location
    Australia
    Posts
    343
    Started my X Wing build last year so don't know if it's allowed. If not hope it is of some inspiration to you all...

    I did a trial flight last Sunday to confirm it has reasonable aero properties.

    Here's a shot on the pad, due to being a trial it's not painted and is lacking engines on the wing.Video of launch, enjoy


    http://www.youtube.com/watch?v=MjTbV5zWNeE

    Build thread is here http://forum.ausrocketry.com/viewtopic.php?f=10&t=5704

    QRS: 124
    AMRS: 32 L2
    Highest Altitude: 10,849 feet
    Largest Motor: CTI 1115J530 IM
    Current Projects:
    Purple Parrot, X Wing


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