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All Forums >> Electric Aircraft Universe >> 3D Electric Flying! >> 3DFoamy Support >> how to glue foam for strength
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how to glue foam for strength - 3/1/2008 10:35:24 AM   
TARIQ


 

Posts: 11
Joined: 7/13/2003
From: karachi, PITCAIRN ISLAND
Status: offline 		i am interested to build my first electric foamy plane, and i want to know that ,

how can i glue the foam to give strength ? should i over lap just glue on the top and bottom surface ?

can i use simple wood glue on the surface and bottom or water base glue ?

for example i want to make EXTRA 300 , OR YAK 54 LIKE PLANE , NO PROFILE



can some have foamy EXTRA 300 PLAN OR OTHER PLANE LIKE THAT ? which is easy to make




thanks


m.tariq
       Post #: 1

RE: how to glue foam for strength - 3/1/2008 12:43:04 PM   
guru101


 

Posts: 186
Joined: 4/11/2006
From: BathurstNSW, AUSTRALIA
Status: offline 		Tariq

If you go to 3Dfoamy.com you will find several different high performance foam aircraft plans that are free to download, you will also find building instructions, power system recomendations, flying tips and a hole lot of other info that you will need to do an electric foamy build. Definatly worth a look, some of there aircraft are real stunners in the air. I personaly have built there F15 with a brushless setup and can tell you that it is a very powerful little aircraft, and well worth the time put into the build.

(in reply to TARIQ)
       Post #: 2

RE: how to glue foam for strength - 3/1/2008 1:56:02 PM   
bacosa


 

Posts: 41
Joined: 1/31/2008
From: Mesa, AZ, USA
Status: offline 		Guru101 is right. There are great tips on the 3dfoamy site. In the end it will come down to personal preference. I use a combination of glues. Foam safe CA of course and white glue. I have had good luck with both. I have heard of people using titebond wood glue as well with good results. Just be careful, glue means weight.

(in reply to guru101)
       Post #: 3

RE: how to glue foam for strength - 8/22/2008 11:31:02 PM   
MonsterMaxx


 

Posts: 8
Joined: 12/1/2005
From: s, SC, USA
Status: offline 		I'm building a 3dfoamy supercap and am about to go hunting for glue.

What about spray glues like 3m?
Seems like something like this would be perfect for gluing these cores together.

Anyone try anything like this?

(in reply to bacosa)
       Post #: 4

RE: how to glue foam for strength - 8/23/2008 1:47:08 AM   
geno472


 

Posts: 38
Joined: 6/9/2004
From: , MD, USA
Status: offline 		Monster,

I have used the 3M spray adhesive on all of my 3D Foamy planes with no problems. It is alot easier then trying to spread glue on the cores and you save weight.

Regards,
Gene

(in reply to MonsterMaxx)
       Post #: 5

RE: how to glue foam for strength - 8/23/2008 5:23:14 PM   
MonsterMaxx


 

Posts: 8
Joined: 12/1/2005
From: s, SC, USA
Status: offline 		so, tips and tricks? spray both sides? Do you use push pins or something for aligning things? How fast does it tack up? Is there any time to move it or as soon as it's laid down is is THERE?

Any pointers would be most appreciated, I'll pickup some spray adhesive this afternoon.

(in reply to geno472)
       Post #: 6

RE: how to glue foam for strength - 8/24/2008 6:30:49 PM   
MonsterMaxx


 

Posts: 8
Joined: 12/1/2005
From: s, SC, USA
Status: offline 		I got the elmers spray.
Did a test piece, worked fine.

Did the wing core and wing skin, soon as I touched them to each other they were permanently stuck. Ruined these two pieces. Hopefully I can get another quicker than the 3 weeks it took to get the kit itself.

What I found was that I hadn't applied a thick enough layer of the spray. Apply it thin and it tacks up by the time you have the other sprayed, then when they touch each other it sticks immediately.
If I put a thicker layer on and it stays movable for quite some time. Actually longer than I'd like.

Comparing to regular spray painting, a coat that would be your first coat of paint is too thin, a coat that's like the last glossy coat is a bit too thick. Somewhere in between would be ideal, err to the side of thicker as it will allow you to move the pieces.



Oh well.

With any luck John will reply that I can get these two parts (4 pcs).

(in reply to MonsterMaxx)
       Post #: 7

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