Author Topic: Spirit of South Dakota Lakester  (Read 314399 times)

0 Members and 2 Guests are viewing this topic.

Offline Jon

  • Sr. Member
  • ****
  • Posts: 852
Re: Spirit of South Dakota Lakester
« Reply #300 on: March 31, 2012, 10:56:00 PM »
If you draped that in one bit and only got 2 wrinkles you have to be happy.

Is that the finished size or a mold that your making Tman?

cheers
jon
Underhouse Engineering
Luck = Opportunity + Preparation^3

Offline Tman

  • Hero Member
  • *****
  • Posts: 3676
Re: Spirit of South Dakota Lakester
« Reply #301 on: March 31, 2012, 11:06:03 PM »
Hoping to just do a couple splashes off the plug. No mold. We will see. You can see a right-left line towards the front where I cut loose a piece of mat and did it in two pieces. Looked like I could have done it in one and hindsight says I prob could have but I have no clue what I am doing save for a couple write-ups I have read here and the notes on the can of Resin!!!!!!

Jon, the next layers will be done in about 8" wide strips and layed up criss-crossing in diagonals unless someone tells me a better way?
« Last Edit: March 31, 2012, 11:08:28 PM by Tman »

Offline Jon

  • Sr. Member
  • ****
  • Posts: 852
Re: Spirit of South Dakota Lakester
« Reply #302 on: April 01, 2012, 04:05:29 AM »
The only fiberglass attempt that hasn't caught on fire is the body plug in my build.

I bought a book off fleabay that I read.
I drape the cloth dry until I'm happy with it.
I got a roll each of 0/90 degree and 45/45 degree and was planning on alternating layers.
When I was happy with the cloth lay I just started at one end wetting it up with a dabbing action with a 1" brush.
Apparently any more resin than just enough to wet up the cloth is just adding weight and no extra strength.


Cheers
jon.
Underhouse Engineering
Luck = Opportunity + Preparation^3

Offline Tman

  • Hero Member
  • *****
  • Posts: 3676
Re: Spirit of South Dakota Lakester
« Reply #303 on: April 01, 2012, 11:00:21 PM »
First layer ended up being 3 wrinkles. Got the second and third done tonight.




Offline 38flattie

  • Hero Member
  • *****
  • Posts: 2169
    • http://www.flatcadracing.org/
Re: Spirit of South Dakota Lakester
« Reply #304 on: April 02, 2012, 07:36:23 PM »
Trent, I'm curious as to how you decided on the nose 'cone' shape? The sides all appear flat, and I would expect a cone, or bullet shape- of course, I know didly about aero though!

Is this a design you liked, copied of off another car, was suggested to you, or.....?


The build is looking good!
With sufficient thrust, pigs fly just fine. However, this is not necessarily a good idea. It is hard to be sure where they are going to land, and it could be dangerous sitting under them as they fly overhead. -- RFC 1925

You can't make a race horse out of a pig. But if you work hard enough at it you can make a mighty fast pig. - Bob Akin

http://www.flatcadracing.org/
http://youtu.be/89rVb497_4c

Offline Tman

  • Hero Member
  • *****
  • Posts: 3676
Re: Spirit of South Dakota Lakester
« Reply #305 on: April 02, 2012, 07:52:00 PM »
Trent, I'm curious as to how you decided on the nose 'cone' shape? The sides all appear flat, and I would expect a cone, or bullet shape- of course, I know didly about aero though!

Is this a design you liked, copied of off another car, was suggested to you, or.....?


The build is looking good!

I answered you on the HAMB as well. It deveolped after looking at several cars and such. Shape started as sketches and evolved from there. Yes, the car is rather flat sided. It will run on the ground and be flat bottom.

Offline 55chevr

  • Hero Member
  • *****
  • Posts: 2449
Re: Spirit of South Dakota Lakester
« Reply #306 on: April 02, 2012, 08:06:17 PM »
I like it ...

Joe

Offline Tman

  • Hero Member
  • *****
  • Posts: 3676
Re: Spirit of South Dakota Lakester
« Reply #307 on: April 02, 2012, 10:23:18 PM »
I like it ...

Joe

Thanks Joe, did some trimming and it looks good. Only 1/3 to 1/2 the layers I need. How thick SHOULD I make this thing?







Last picture, below, is taken from 3" off the deck. This is full on frontal.

« Last Edit: April 02, 2012, 10:29:16 PM by Tman »

Offline Tman

  • Hero Member
  • *****
  • Posts: 3676
Re: Spirit of South Dakota Lakester
« Reply #308 on: April 15, 2012, 06:28:49 PM »
Looks similar but I am up to 3 or 4 layers on the nose. Fighting a cold so the fumes are not bad! Wonder how many layers it takes til I get the right thickness? I feel for Jon and his streamliner! :-o

Offline 55chevr

  • Hero Member
  • *****
  • Posts: 2449
Re: Spirit of South Dakota Lakester
« Reply #309 on: April 15, 2012, 08:27:23 PM »
criss cross the layers and it will stiffen up ... thickness not as critical as stiffness ... you will feel it ...

Offline Elmo Rodge

  • Hero Member
  • *****
  • Posts: 1668
Re: Spirit of South Dakota Lakester
« Reply #310 on: April 15, 2012, 09:11:37 PM »
How thick is it now? Wayno

Offline Tman

  • Hero Member
  • *****
  • Posts: 3676
Re: Spirit of South Dakota Lakester
« Reply #311 on: April 15, 2012, 10:22:01 PM »
Getting there, a good day of Rockies Baseball and laminating

Offline Stainless1

  • Administrator
  • Hero Member
  • ***
  • Posts: 9098
  • Robert W. P. "Stainless" Steele
Re: Spirit of South Dakota Lakester
« Reply #312 on: April 16, 2012, 10:47:08 AM »
When it is thick enough to sit on without buckling it will probably be enough

What is your B/L ratio?



(unfamiliar with this fiberglassing term?  Beers to Layers)
Stainless
Red Hat 228.039, 2001, 65ci, Bockscar Lakester #1000 with a little N2O

Offline Tman

  • Hero Member
  • *****
  • Posts: 3676
Re: Spirit of South Dakota Lakester
« Reply #313 on: April 16, 2012, 03:16:12 PM »
When it is thick enough to sit on without buckling it will probably be enough

What is your B/L ratio?



(unfamiliar with this fiberglassing term?  Beers to Layers)

B/L=5, I think.........................

Right now it is about 3-4mm thick at its thickest. Got a ways to go.

Offline Jon

  • Sr. Member
  • ****
  • Posts: 852
Re: Spirit of South Dakota Lakester
« Reply #314 on: April 16, 2012, 03:25:49 PM »
Looking good Tman

How much support will it have?

Are you putting the cloth on at different angles between layers?

What weight cloth are you using?
Mine is quite heavy, will try and find the invoice.

Cheers
jon
Underhouse Engineering
Luck = Opportunity + Preparation^3