Quantcast

geometric rocket challenge build

The Rocketry Forum

Help Support The Rocketry Forum:

Scotty Dog

Well-Known Member
Joined
Mar 2, 2010
Messages
7,333
Reaction score
108
Getting the look....... see?

Decagonal Dipyramidal Antiprism:
Number of faces: 40
Number of edges: 60
Number of vertices: 22


Pentagonal-pentagrammic Shape:
Number of faces: 17
Number of edges: 30
Number of vertices: 15

DSCN3804.jpg


DSCN3806.jpg


DSCN3809.jpg


DSCN3810.jpg


DSCN3812.jpg


DSCN3813.jpg


DSCN3814.jpg


DSCN3815.jpg


DSCN3816.jpg
 
Last edited:

Scotty Dog

Well-Known Member
Joined
Mar 2, 2010
Messages
7,333
Reaction score
108
mountains and valleys

Plan is to make a naked one (shell) and then build one with all the paper printed out in colors,stripes,doors,windows,ect.

Also...this rule?

All corners of the rocket must be angled
-This includes body tube, nose cone, and fins.
-Excluded are any inner workings of the rocket.


I think I'm ok with the inner tube.

DSCN3789.jpg


DSCN3790.jpg


DSCN3791.jpg


DSCN3792.jpg


DSCN3800.jpg


DSCN3802.jpg


DSCN3803.jpg
 
Last edited:

Scotty Dog

Well-Known Member
Joined
Mar 2, 2010
Messages
7,333
Reaction score
108
Printed and folded this shape tonight. Not perfect but hey..
I suppose I could incorp it into the ars end of this geo ?

If the angle was steeper, canted 18!!!!!!!!!!!!

DSCN3817.jpg


DSCN3818.jpg


DSCN3819.jpg


DSCN3820.jpg


DSCN3821.jpg


DSCN3823.jpg


DSCN3824.jpg
 

Scotty Dog

Well-Known Member
Joined
Mar 2, 2010
Messages
7,333
Reaction score
108
Change of plan. More to come later tonight.

DSCN3894.jpg


DSCN3895.jpg


DSCN3893.jpg


DSCN3892.jpg
 
Last edited:

Scotty Dog

Well-Known Member
Joined
Mar 2, 2010
Messages
7,333
Reaction score
108
Playing around..ya, I know,need to be a little more exacting when I cut out the real deal.

hey..Im getting the look of it. Or 1/2 the look.
Also thinking 2 halves make a hole so we will see on the NC part(s).

DSCN3899.jpg


DSCN3900.jpg


DSCN3905.jpg


DSCN3907.jpg


DSCN3909.jpg


DSCN3906.jpg
 
Last edited:

Scotty Dog

Well-Known Member
Joined
Mar 2, 2010
Messages
7,333
Reaction score
108
Geez scotty! That looks epic!
Thanks..it sure is challenging. One issue, every time I work on it, I get a different idea.
And when I do build the real deal, what weights of paper and where.
AND..a BIG AND..hopefully it doesn't end up on the back shelf. I have a thing about not finishin...
 

Scotty Dog

Well-Known Member
Joined
Mar 2, 2010
Messages
7,333
Reaction score
108
It was like"BAM" ...When I build the real deal..I have a whole different approach.!!!
For now this will do. Ya know, to get the look.
Also..I found this ruler in a Dollar store.
I love the thing. With the handle, so easy to grap,place,hold.WE.

DSCN3914.jpg


DSCN3916.jpg


DSCN3917.jpg


DSCN3919.jpg


DSCN3920.jpg


DSCN3923.jpg
 

TangoJuliet

Well-Known Member
Joined
Jun 26, 2016
Messages
1,239
Reaction score
9
Where do you get your card stock? Some of that looks like Manilla folder, but what about the blue stuff? I've seen posts where people reference 65# or 110# but when I've looked at places like Wally World, I haven't seen anything that referenced the weight of the card stock.
 

Scotty Dog

Well-Known Member
Joined
Mar 2, 2010
Messages
7,333
Reaction score
108
Where do you get your card stock? Some of that looks like Manilla folder, but what about the blue stuff? I've seen posts where people reference 65# or 110# but when I've looked at places like Wally World, I haven't seen anything that referenced the weight of the card stock.
Yup on the Manilla, the other is a mix. The bottom (2 blues) I printed on just a heavy paper..I wouldnt call it heavy enough to be "card stock".
I did pick up some poster board and some other colored craft ? papers.
Anywhoo-- I bought them at our Dollar store. .not sure the name.. they have about a half dozen dollar something type stores nowa days.

Heres a link...
https://www.lcipaper.com/weights-cardstock-paper.html


1lb. of Text paper = 1.48 gsm. Multiply each pound of text paper by 1.48.
1 lb. of Cover paper = 2.708 gsm. Multiply each pound of cover paper by 2.708.
Example:
80lb. text = 118.4 gsm
80lb. cover = 216.64 gsm
 
Last edited:

Scotty Dog

Well-Known Member
Joined
Mar 2, 2010
Messages
7,333
Reaction score
108
It was like"BAM" ...When I build the real deal..I have a whole different approach.!!!
build the "side tanks" as one piece per say.?
And here it is... Ritz cracker box. About 56ish mm. Its is dense,rugged, solid stock.
Ill print out the bottom part again and build that with this stuff.
I think Ill build it in pieces being I'm using thicker stock. Ill fold some,but not all the edges like the paper model.
You'll get me drift.

DSCN3942.jpg


DSCN3943.jpg


DSCN3947.jpg


DSCN3948.jpg


DSCN3949.jpg


DSCN3950.jpg
 
Last edited:

neil_w

Marginally Stable
TRF Supporter
Joined
Jul 14, 2015
Messages
11,126
Reaction score
3,980
Location
Northern NJ
I'm glad for the contest if only to witness this glorious madness coming together. :)
 

Scotty Dog

Well-Known Member
Joined
Mar 2, 2010
Messages
7,333
Reaction score
108
While I'm still pondering on what to do on the top half, I grabbed a cereal box and cut out a new stiffer bottom.

DSCN3953.jpg


DSCN3954.jpg


DSCN3956.jpg


DSCN3957.jpg
 

Scotty Dog

Well-Known Member
Joined
Mar 2, 2010
Messages
7,333
Reaction score
108
Ha ha "TRITE".
Back when I was a cross cut saw and bucked all..in HS I used to say..That....s.(slide the .."s"..in front of "Trite".
My teacher assumed (bad on them) I was saying "That's right".
I guess its a, you had to be there thing. When your young, anything you thought you were getting away with or over on someone was COOL!. (no harm stuff)

Anywhoo-- be looking forward to seeing what you came up with for a design!!!!
 
Last edited:

BABAR

Builds Rockets for NASA
TRF Lifetime Supporter
TRF Supporter
Joined
Aug 27, 2011
Messages
7,726
Reaction score
2,642
Nice. I use pizza boxes
 

BABAR

Builds Rockets for NASA
TRF Lifetime Supporter
TRF Supporter
Joined
Aug 27, 2011
Messages
7,726
Reaction score
2,642
I me-self would like to see a few more enter.
Working on it. Mine is more of an engineering project. Nice simple airbrake recovery.
 
Top