COX Saturn 1B (modification)

Discussion in 'Low Power Rocketry (LPR)' started by Leo, Aug 13, 2019.

Help Support The Rocketry Forum by donating:

  1. Aug 13, 2019 #1

    Leo

    Leo

    Leo

    Well-Known Member

    Joined:
    Aug 19, 2009
    Messages:
    1,772
    Likes Received:
    43
    Gender:
    Male
    Location:
    Germany
    I realize that only few people own this vintage COX model rocket but since I fly mine and try to make them fly safer I thought I would post a modification that I did to my model.
    Maybe some here have the same model and would like to do the modification as well.

    The rocket:
    COX_Saturn_1B_Complete_Leo_N.jpg

    The dangerous part about these type of rockets is that they are prone to lawn darting because the eject charge is unable to deploy the recovery system. This is mostly due to the ejection gases leaking through openings and cracks in the plastic.
    A simple solution is to use a body tube as a core, holding the engine and transferring the ejection gases to the parachute compartment.
    To accomplish this I designed and 3D printed 2 parts. A disk adapter for the parachute compartment and an adapter for the lower end of the rocket.
    COX_Saturn_1B_Printed_Parts_Leo_N.jpg

    I took a BT-20 body tube and cut it to the appropriate length. I also added an engine hook for convenience.
    COX_Saturn_1B_Layout_Leo_N.jpg

    First thin was to epoxy the ring adapter to the body tube.
    COX_Saturn_1B_Top_Glued_Leo_N.jpg

    Then insert the body tube into the rocket.
    COX_Saturn_1B_View_Top_Leo_N.jpg

    Lastly I added some epoxy the other end of the body tube and inserted the lower adapter.
    COX_Saturn_1B_View_Bottom_Leo_N.jpg

    Now I can safely fly this rocket :)
     
  2. Aug 13, 2019 #2

    5x7

    5x7

    5x7

    Well-Known Member

    Joined:
    Jan 20, 2009
    Messages:
    748
    Likes Received:
    29
    That’s nice, is it possible for you to put the parts on shapeways or see if Boyce will make them available? They have a replacement top for the rocket I assume because if the lawn darting.
     
  3. Aug 13, 2019 #3

    Leo

    Leo

    Leo

    Well-Known Member

    Joined:
    Aug 19, 2009
    Messages:
    1,772
    Likes Received:
    43
    Gender:
    Male
    Location:
    Germany
    I will publish the parts on Thingiverse. Link to follow soon.....
     

Share This Page