Ye Olde Rocket Forum

Go Back   Ye Olde Rocket Forum > Work Bench > Building Techniques
User Name
Password
Auctions Register FAQ Members List Calendar Today's Posts Search Mark Forums Read


Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 11-28-2008, 08:52 PM
Mick Kelly Mick Kelly is offline
Intermediate Rocketeer
 
Join Date: Nov 2008
Posts: 36
Default Sandwich panel fin construction

(11-29-08) updated

If anyone is interested in learning how to build composite sandwich panel fin sets I will try to document this procedure for you. Below are two photos showing the materials used to build the fin and the the fin once it's finished. Since I am new to this group I am uncertain as what is wanted and what is not for the building techniques section of this forum.

Since all my photo documentation is in high res, I have to learn how to post these images to the site so bare with me will I learn how to do this.

Just let me know if you find this of interest and I will post more.

Thanks,

Mick Kelly

I have added a few more photos showing more details on the construction of the sandwich panel fin set. If you have any questions feel free to ask. I will be glad to go into full detail about any or all of the process.

http://farm4.static.flickr.com/3226...ea6b40e09_b.jpg
This photo is of the core components consisting of solid carbon bar stock. I made the bar stock using my compression mold. The foam is called Divinycell. It is a medium density foam with a 100 psi compression strength rating.

http://farm4.static.flickr.com/3174...7a8a98e74_b.jpg
This is the finished product utilizing sandwich panel construction techniques.

http://farm4.static.flickr.com/3146...670903d7a_b.jpg
This photo shows how the bar stock is angle cut before adhering to the core.

http://farm4.static.flickr.com/3062...868a6cba6_b.jpg
This photo shows the carbon and the core adhered together to make the internal framing core.

http://farm4.static.flickr.com/3221...a939a083f_b.jpg
This photo shows the skins being cut for the frames. The excess will be trimmed after the skins are laid up and cured but before the final heat cure.

http://farm4.static.flickr.com/3220...35a873acb_b.jpg
This photo shows the bottom skins and also the bottom half of the compression mold.

http://farm4.static.flickr.com/3171...10526c093_o.jpg
Tis photo shows the assembled compression mold and being vacuum down. Notice the amount of out gassing along with the removal of excess resin.

http://farm4.static.flickr.com/3162...26056eb47_b.jpg
This photo i the four fins after the have been beveled on the leading and trailing edge. Along with the high temperature adhesive on the beveled edges. When the fin is in this state is when the final heat cure takes place.


Mick

Last edited by Mick Kelly : 11-29-2008 at 07:41 PM.
Reply With Quote
  #2  
Old 11-29-2008, 02:59 PM
Mick Kelly Mick Kelly is offline
Intermediate Rocketeer
 
Join Date: Nov 2008
Posts: 36
Default

yousah, I have added a few more photos of the process for building the fin set. If you have any question on the technique used let me know and I will be more than happy to answer any of your questions.

Mick
Reply With Quote
  #3  
Old 11-30-2008, 10:17 AM
pantherjon's Avatar
pantherjon pantherjon is offline
Master Modeler
 
Join Date: Mar 2007
Location: Hinesville, Georgia
Posts: 1,071
Default

Looks awesome..Just curious, from start to finish, how long did this take you?
__________________
Jon
SAM #0396
BAR 02/07
NAR 86940
KF4GUL
Aim high, fly straight!
Reply With Quote
  #4  
Old 11-30-2008, 11:15 AM
Mick Kelly Mick Kelly is offline
Intermediate Rocketeer
 
Join Date: Nov 2008
Posts: 36
Default

Jon,
It takes a weekend to make a set of sandwich composite fins or solid composite fins.

Mick
Reply With Quote
  #5  
Old 12-01-2008, 08:10 AM
ECayemberg ECayemberg is offline
Craftsman
 
Join Date: Jun 2008
Posts: 103
Default

Mick,

Beautiful work!!! Now if Chuck would just finish that darn ARCAS!

Glad to see you posting here!

-Eric-
Reply With Quote
  #6  
Old 12-01-2008, 06:22 PM
Mick Kelly Mick Kelly is offline
Intermediate Rocketeer
 
Join Date: Nov 2008
Posts: 36
Default

Eric I agree, I wish Chuck would at least finish that project before he takes his break from rocketry.

Mick
Reply With Quote
  #7  
Old 12-01-2008, 11:22 PM
GIJoe GIJoe is offline
Craftsman
 
Join Date: Jan 2008
Location: Spokane, WA
Posts: 111
Default

Great job, I just want a work space that large and spacious. I wonder how much stuff I could get on it before it was totally cluttered.

Joe

Last edited by GIJoe : 12-01-2008 at 11:22 PM. Reason: fat fingers
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump



All times are GMT -5. The time now is 07:32 PM.


Powered by: vBulletin Version 3.0.7
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Ye Olde Rocket Shoppe © 1998-2024