Ideas for painting 'just the tip' of nosecones?

Discussion in 'Techniques' started by Tom, Jan 20, 2020.

Help Support The Rocketry Forum by donating:

  1. Jan 20, 2020 #1

    Tom

    Tom

    Tom

    Forum Supporter TRF Supporter

    Joined:
    Jun 4, 2019
    Messages:
    271
    Likes Received:
    46
    It would be cool if there was an easy way to paint the tip of a nose cone in a nice even manner.

    I thought it would be simple. Just cut a hole in a piece of cardboard and slip that over the tip. It 'sorta' worked but there was some blow by and it ended up tilted.
     
  2. Jan 21, 2020 #2

    David Schwantz

    David Schwantz

    David Schwantz

    Well-Known Member

    Joined:
    Jul 23, 2018
    Messages:
    1,010
    Likes Received:
    267
    Gender:
    Male
    Location:
    MN
    Use frisket paper. Can get at any art store.
     
  3. Jan 21, 2020 #3

    neil_w

    neil_w

    neil_w

    Hunkered down TRF Supporter

    Joined:
    Jul 14, 2015
    Messages:
    7,762
    Likes Received:
    1,537
    Location:
    Northern NJ
    OK, given frisket paper, how do you do it?
     
  4. Jan 21, 2020 #4

    David Schwantz

    David Schwantz

    David Schwantz

    Well-Known Member

    Joined:
    Jul 23, 2018
    Messages:
    1,010
    Likes Received:
    267
    Gender:
    Male
    Location:
    MN
    Exact same way as OP tried with cardboard. Cut your hole to the size that you want, center it over NC, and press it down. Don't use a big sheet of it, just enough to make your circle, or shape, then use regular making around it. If you try to use a piece to large it may tend to wrinkle. I also use a burnishing tool for all the edges, this will help with paint from bleeding under it.
     
    neil_w likes this.
  5. Jan 21, 2020 #5

    lakeroadster

    lakeroadster

    lakeroadster

    Lone Wolf... No Club TRF Supporter

    Joined:
    Mar 3, 2018
    Messages:
    1,652
    Likes Received:
    491
    Gender:
    Male
    Location:
    Central Colorado
    I'd use my drill press on a very slow speed and a small detail brush....

    004.JPG
     
  6. Jan 21, 2020 #6

    David Schwantz

    David Schwantz

    David Schwantz

    Well-Known Member

    Joined:
    Jul 23, 2018
    Messages:
    1,010
    Likes Received:
    267
    Gender:
    Male
    Location:
    MN
    Never thought of that one. Not bad idea.
     
  7. Jan 21, 2020 #7

    BABAR

    BABAR

    BABAR

    Builds Rockets for NASA TRF Lifetime Supporter TRF Supporter

    Joined:
    Aug 27, 2011
    Messages:
    5,186
    Likes Received:
    813
    Cape Byron likes this.
  8. Jan 21, 2020 #8

    hcmbanjo

    hcmbanjo

    hcmbanjo

    Well-Known Member

    Joined:
    Jan 18, 2009
    Messages:
    2,253
    Likes Received:
    59
    Don't know about the "Master" part - I'm still figuring these things out.
    For me, the whole trick is cutting your masking tape in a smooth curve on a piece of glass.
    I mark the clear Scotch tape with a wide point Sharpie to see it against the nose cone.
    Peel off the curved tape and apply around the nose cone tip.
    It'll probably take a few tries to get the cut tape curve right to fit your nose cone shape.

    Here's a few blog posts:
    http://modelrocketbuilding.blogspot.com/2012/07/wolverine-rocketry-phoenix-aim-54a_1990.html
    http://modelrocketbuilding.blogspot.com/2011/11/quest-striker-agm-build-part-10-nose.html
    http://modelrocketbuilding.blogspot.com/2017/09/apogee-shrockets-skonk-wulf-build-part_8.html
    http://modelrocketbuilding.blogspot.com/2013/09/semroc-spev-build-part-12-nose-cone-mask.html
     
  9. Jan 21, 2020 #9

    dr wogz

    dr wogz

    dr wogz

    Fly caster

    Joined:
    Feb 5, 2009
    Messages:
    5,101
    Likes Received:
    495
    Location:
    Land of Poutine!
    I woulda thought painting the tip first, then masking to paint the lower portion might be eaisier. I see it easier to mask the tip, rather than trying to mask the other side..
     
    Donnager likes this.
  10. Jan 21, 2020 #10

    blackjack2564

    blackjack2564

    blackjack2564

    Crazy Jim's Gone Banana's

    Joined:
    Jan 18, 2009
    Messages:
    8,906
    Likes Received:
    1,022
    Location:
    Savannah Ga
    Buy roll of pin stripe tape from Wally or Pep boys etc. only 3-4 bucks . 1/4in wide and very pliable/stretchy.
    Slide a tube over tip that will be tight where ya want the line.
    pencil around that tube edge. you now have a perfect line around NC.
    Tape to that line and paint, Rustoleum silver metallic really looks aluminum.

    100_4106.jpg
     
    Last edited: Jan 21, 2020
  11. Jan 21, 2020 #11

    AfterBurners

    AfterBurners

    AfterBurners

    Well-Known Member

    Joined:
    May 8, 2012
    Messages:
    7,136
    Likes Received:
    209
    Gender:
    Male
    Location:
    Dallas Texas
    This is the method I use that seems to work best. I use Tamiya tape 6mm and it seems to work well. Whole secret don't complicate it. It's not that difficult. The hardest part is getting the tape to line up. Might take a few tries.
     
  12. Jan 22, 2020 #12

    Donnager

    Donnager

    Donnager

    Well-Known Member

    Joined:
    May 29, 2019
    Messages:
    77
    Likes Received:
    34
    Gender:
    Male
    This is what I've done. After the tip dries, I just set a body tube of the right diameter snugly on the tip, and paint the rest.
     
  13. Jan 22, 2020 #13

    K'Tesh

    K'Tesh

    K'Tesh

    OpenRocket Chuck Norris

    Joined:
    Mar 27, 2013
    Messages:
    13,565
    Likes Received:
    630
    Perhaps you could cut a small hole in a balloon, and pull it down over the area that will not get the new color.
     
  14. Jan 22, 2020 #14

    rharshberger

    rharshberger

    rharshberger

    Well-Known Member

    Joined:
    Oct 13, 2014
    Messages:
    8,822
    Likes Received:
    1,049
    Gender:
    Male
    Location:
    Pasco, WA
    I make a centering ring with a hole just large enough for the nose cone tip to fit through and CA it to a coupler for a piece of tubing the proper diameter as the circle I want on the nose cone, insert the coupler into the tubing and push it down onto the tip until the outer tube hits the nose cone, scribe the circle around the end of the tube. The CR keeps the tube mouth perpendicular to the nosecone axis. then tape off with a good quality masking tape, perfect circle every time
     
    Nytrunner likes this.
  15. Jan 23, 2020 #15

    Theory

    Theory

    Theory

    Well-Known Member

    Joined:
    Nov 30, 2018
    Messages:
    558
    Likes Received:
    292
    Gender:
    Male
    that is so simple even i can probably do it!

    reading this over again: "Slide a tube over tip that will be tight where ya want the line. Pencil around that tube edge. you now have a perfect line around NC." im struck by the brilliance. one of those "so simple why didnt i think of that" kinda things

    thanks Jim!
     
  16. Jan 23, 2020 #16

    Back_at_it

    Back_at_it

    Back_at_it

    Well-Known Member

    Joined:
    Jul 16, 2019
    Messages:
    46
    Likes Received:
    14
    Gender:
    Male
    I always took the easy way out. Painted the tip whatever color it needed to be first then dipped the tip of the nosecone in Liquid Mask. Paint the rest of the nosecone and peel off the liquid mask.
     
  17. Jan 23, 2020 #17

    neil_w

    neil_w

    neil_w

    Hunkered down TRF Supporter

    Joined:
    Jul 14, 2015
    Messages:
    7,762
    Likes Received:
    1,537
    Location:
    Northern NJ
    That's another great idea. Lots of ways to skin this particular cat it would seem.
     
  18. Feb 4, 2020 #18

    jqavins

    jqavins

    jqavins

    Joseph Avins TRF Supporter

    Joined:
    Sep 29, 2011
    Messages:
    2,859
    Likes Received:
    665
    Gender:
    Male
    Location:
    Howard, NY
    That's what I did the one and only time I've done this, and it came out perfect. Easy peasey.

    On the other hand, this might be what I do next time. Brilliant!

    Another thing I might do next time is dip the nose cone tip in the paint color I want then hang it pointy end down to dry. I really don't think you can get simpler than that.
     
    K'Tesh and Donnager like this.
  19. Feb 4, 2020 #19

    neil_w

    neil_w

    neil_w

    Hunkered down TRF Supporter

    Joined:
    Jul 14, 2015
    Messages:
    7,762
    Likes Received:
    1,537
    Location:
    Northern NJ
    I wonder how thick the paint layer will end up if you do it like that. Obviously it will depend on the paint to some extend. I expect you'd get a built-up blob at the point (I always do when hanging a nose cone point-down while applying Future or CA). If you try it, please document. :)
     
  20. Feb 4, 2020 #20

    jqavins

    jqavins

    jqavins

    Joseph Avins TRF Supporter

    Joined:
    Sep 29, 2011
    Messages:
    2,859
    Likes Received:
    665
    Gender:
    Male
    Location:
    Howard, NY
    They make this stuff called "paint thinner"...

    And yeah, there'd probably be a drip dried in the tip to remove and touch up with a brush.

    I've painted a different wood project this way and it worked very well, but in that case I was going for thick. If I ever try it with a nose cone I'll let you know.
     
  21. Feb 4, 2020 #21

    BABAR

    BABAR

    BABAR

    Builds Rockets for NASA TRF Lifetime Supporter TRF Supporter

    Joined:
    Aug 27, 2011
    Messages:
    5,186
    Likes Received:
    813
    If you wait a minute or two, you can probably “dab off” the drop, with the remaining still wet paint sufficient to ooze over the surface and leave it clean with no breaks of significant drop remaining.
     

Share This Page

Group Builder