Explorer&Space Station Aquarius downscales

Discussion in 'Cardstock Rocketry' started by GlenP, Dec 8, 2017.

  1. Dec 29, 2017 #41

    GlenP

    GlenP

    GlenP

    Well-Known Member

    Joined:
    Oct 4, 2014
    Messages:
    969
    Likes Received:
    5
    Tested out the metallic ink-jet printer paper, more of a shimmer than a true metallic, but looks okay, maybe a little better than the Sharpie treatment. 18mm booster to 13mm sustainer. Stretched the booster fins a little. Thanks for the idea! Will need to figure out nose weight, would like to keep total sustainer weight as light as possible to allow it to be launched single stage, might need a removable nose weight for two-stage. Would probably look better with a shorter distance between the booster and sustainer, could have recessed the sustainer engine mount a little more, but not too shabby.

    DSC_7317.jpg
    DSC_7319.jpg
    DSC_7320.jpg

    the other technique is to simulate a metallic appearance using color shaded gradients from white to light gray, like on the R2-D2 droid paper template. This makes a metallic glare from a certain point of view... I almost think that color gradient technique looks just as good as either the metallic Sharpie or this shimmer paper, and you can just print that on regular white paper with better results when printing out multi-color artwork.
     
  2. Dec 30, 2017 #42

    dhbarr

    dhbarr

    dhbarr

    Amateur Professional

    Joined:
    Jan 30, 2016
    Messages:
    4,044
    Likes Received:
    18
    It's shake n' bake, & I helped!
     
  3. Dec 30, 2017 #43

    GlenP

    GlenP

    GlenP

    Well-Known Member

    Joined:
    Oct 4, 2014
    Messages:
    969
    Likes Received:
    5
    Dare I add a third stage? Hmmm... would probably never see it again if I put a 24mm booster as the third stage.
     
  4. Dec 30, 2017 #44

    OverTheTop

    OverTheTop

    OverTheTop

    Well-Known Member

    Joined:
    Jul 10, 2007
    Messages:
    1,593
    Likes Received:
    10
    Nice build. Kudos for the cardstock effort!

    One of our club guys is going the other way. He is going to probably 3D print the NC for a 4" airframe tube.
     
  5. Dec 30, 2017 #45

    GlenP

    GlenP

    GlenP

    Well-Known Member

    Joined:
    Oct 4, 2014
    Messages:
    969
    Likes Received:
    5
    Those upscales are really impressive. My garage does not have that much space. The only way I can add to my rocket collection is to downsize my collection :)
     
  6. Jan 5, 2018 #46

    barn

    barn

    barn

    BAR none

    Joined:
    Feb 25, 2009
    Messages:
    24
    Likes Received:
    0
    finally I made the nosecone from your png file:

    DSC_0446_800x800.jpg
     
  7. Jan 6, 2018 #47

    GlenP

    GlenP

    GlenP

    Well-Known Member

    Joined:
    Oct 4, 2014
    Messages:
    969
    Likes Received:
    5
    Fantastic! I updated that first post in the thread with a version that has a 1-inch square reference. I have a few updates planned to include the cut line for the window opening on those three transitions, and the collar on the original is not quite constant width, more of an ellipse than a circle, so I might add a new part for the collar. I did go a little overboard with the corporate logo artwork, kind of looks like NASCAR. Once you get the hang of it, not too hard, just a bunch of transitions attached to each other. Nice job. The #1 tube 24mm portion could be rolled around the same engine casing mandrel that you use to make the main body tube, or just roll one of those a little longer and cut a portion from it. I also need to work on the glue tabs, I usually just freehand cut those after I cut the parts out, but it makes things a lot easier if you have proper glue tabs on the printout. I got sidetracked into making the Space Station (& Stagin') Aquarius before doing the finishing touches on this one. And both of these were a sidetrack from a cardstock V2 I had printed out and was planning to build... oh well.
     
  8. Jan 7, 2018 #48

    barn

    barn

    barn

    BAR none

    Joined:
    Feb 25, 2009
    Messages:
    24
    Likes Received:
    0
    I actually didn't use any glue tabs. I glue the copier paper printout to 65lb card stock and cut out 2 of each transition. One of the transition pieces gets trimmed about 1mm shorter in length and gets glued to the inside of the regular size transition. I now have a laminate of paper - card stock - paper - card stock. I also put the transition on something round like a small paper cup until the glue dries. Once dry the transition piece holds it's shape well. These transitions are now thick enough that I glue them together edge to edge. Once dried I coat the inside with white glue. I guess I did make one glue tab to glue the two halves together.

    I thought cutting the hole for the window was challenging.

    I think the size will be ok. It may be just a bit too small, but if it is I'll just wrap paper around the bottom tube part until it matches the body tube.

    I love the corporate logo artwork by the way.

    Can't wait to see the V2. I started one but got confused with the fins. Thought I'd make them more simple.
     
  9. Jan 7, 2018 #49

    GlenP

    GlenP

    GlenP

    Well-Known Member

    Joined:
    Oct 4, 2014
    Messages:
    969
    Likes Received:
    5
    The glue tabs are kind of like couplers, they help to line up the parts and give strength to the joints. Look at the Eric Truax nose cones, they show how the glue tabs can interlock with each other. I need to spend some time drawing them up like that.
    https://rocketry.wordpress.com/ultimate-paper-rocket-guide/paper-rocket-partial-builds/#Eric


    http://www.currell.net/models/v2.htm
    That is the V2 model, a few model rocket conversions have shown up here on TRF, I was going to do a 13mm downscale. Those fins might not be strong enough for flight, can always paper over balsa or laminate several layers of cardstock for extra strength.
     
  10. Jan 7, 2018 #50

    barn

    barn

    barn

    BAR none

    Joined:
    Feb 25, 2009
    Messages:
    24
    Likes Received:
    0
    yep, I've made the Eric Truax nose cones with and without glue tabs. I seem to get better results if I go tab-less. I also coat the inside of the nose cone with epoxy. I haven't flown any of my tab-less nose cones yet, but they seem quite robust.
     
  11. Jan 23, 2018 #51

    GlenP

    GlenP

    GlenP

    Well-Known Member

    Joined:
    Oct 4, 2014
    Messages:
    969
    Likes Received:
    5
    D8BF7A74-2A76-48DF-8ED1-B97C3BCCB06E.jpg
    9EFF0DE1-1A0F-44EF-AA2C-A8A03F7976D4.jpg
    Tried one more update to the nose to get the window more full size in proportion to the original. I think I did a better job with the smaller window, but you get the idea. Either one works.
     
  12. Jan 25, 2018 #52

    barn

    barn

    barn

    BAR none

    Joined:
    Feb 25, 2009
    Messages:
    24
    Likes Received:
    0
    Nice job, looks great!
    are you going to update your png file?
     
  13. Jan 26, 2018 #53

    GlenP

    GlenP

    GlenP

    Well-Known Member

    Joined:
    Oct 4, 2014
    Messages:
    969
    Likes Received:
    5
    I plan to make one more update to match this latest prototype nose cone. I added cut lines for the window opening, and one more transition for the window collar so you can use all of the original window parts. The window collar also will have trim lines to make it wider at the front and back and thinner on the sides. I also deleted all the NASCAR-style logos (or NASA-car) they were just too large for the scale and would not be readable if scaled down too much. I tend to go overboard with those. Compared to the USA flag and the doors, those logos were really huge.

    The correct scale sized window version looks much better on the rocket than the one with the smaller window. I don’t plan to make another one, I did a lot of trimming to fit by hand and it could have been cleaner, and I forgot to sharpie the edges of the window parts black before glueing, but will tweak the template one more time based on my latest build.

    3DEB6497-E8CC-478B-8C96-4B05520D73C7.jpg

    I forgot about the display nozzle. I might work up something for that next.
     
  14. Jun 30, 2018 #54

    GlenP

    GlenP

    GlenP

    Well-Known Member

    Joined:
    Oct 4, 2014
    Messages:
    969
    Likes Received:
    5

Share This Page