Go Back   Cosplay.com > Cosplay Construction > Props/Accessories/Armor

Thread Tools
Unread 02-11-2013, 11:44 AM   #1
Master of Ghetto Cosplay
liaann's Avatar
Join Date: Jan 2012
Posts: 36
Really noob question about foam props D:

So I've been trying to find as much information about prop building with insulation foam. A lot of the tutorials I find say something about "sandwiching a wooden dowel between two pieces of foam, and I was wondering how that worked. What glue do you use do attach those two pieces?

One of the weapons I need to make is this:

Can anyone give any tips about making it? D: I haven't figured out how to attach the blade so that the blade end doesn't fall off. I also don't know how I should attach the skull.

Thanks for the help~ ;^;
Cosplay Facebook! ; u ;

Cosplays for AX 2014~
Yuna (FFX-2) - 75% :D
Big Sister (Bioshock 2) - 1%... HAHAHA
liaann is offline   Reply With Quote
Unread 02-11-2013, 01:58 PM   #2
VIXXEN ******
Join Date: Feb 2011
Posts: 3,196
in this case the blade is too thin for foam. id probably build this out of wood attached to a wooden dowel and then use apoxie clay to sculpt on the details
Kpop cosplay is life~
Cory- 24K U R So Cute **DEBUT**
PO- Block B Tell Them **DEBUT**
Baro- B1A4 Solo Day (Beach scene) **DEBUT**
POSSIBLE DEBUT: N-mi: VIXX Girls So Hot (VIXX So Hot cover)
CL- 2NE1 I am the Best
animenerd93 is offline   Reply With Quote
Unread 02-11-2013, 02:02 PM   #3
Extremely registered user
verdatum's Avatar
Join Date: Jul 2006
Posts: 3,583
the wooden dowel through the foam is an often optional step that sometimes gives a piece some extra rigidity. More often than not, it is just a mechanism to attach a sword-hilt to a foam blade in such a way that it won't come loose.

Usually the way it is done is by carving a half-cylinder into two pieces of foam and sandwiching them together with the dowel (or PVC pipe) inside. Some people bore a hole with some sort of auger.

I only use a few dots of polyurethane glue (e.g. gorilla glue) to sandwich foam together. I use it more liberally when embedding a rod. PU glue expands into a foam just a little bit as it cures which fills the voids of the foam caused by carving a half-assed cavity.

The reason I just use a few dots is because when using a composite technique, that glue isn't really what holds the foam together. The pieces are held together by the rigid shell of paper-mache or fabric+glue or fiberglass+resin. This is also why reinforcement doesn't need to go all the way through the core of the foam.

Putting this together in a sturdy manner might be a bit tricky. If I did it, the handle would be a PVC pipe. For reinforcement on the blade, I'd use a 1/4'' piece of brass tube something like 6-10'' long. I'd drill a 1/4'' through each side of the pipe and work the brass rod through so about 1/3 is sticking out one end, 2/3 out the other. I'd then bend the rod into a rough curve, as needed. When happy, epoxy or superglue the rod in place on the pipe. I'd then carve a quarter-cylinder along the edge of each rough-cut piece of foam matching the diameter of the pipe such that the foam can be butted up tight against the handle. I'd press the pipe into each slice of foam for the blade (One slice above the rod, one slice below it press together just enough to make a dent along the length of the rod) and scoop out the indentation it makes until the rod fits. Then sandwich the two pieces together and glue. Then carve out the blade, and harden it with paper mache or whatever, wrapping the reinforcing fiber of choice around the pipe as well as the foam (not the whole pipe, just at that joint). Once dry, I'd sculpt both the skull and the shorter end of the blade out of epoxy clay. The clay for the shorter end of the blade, naturally, will be wrapped around the shorter end of brass tube sticking out the pipe. Then do whatever filling, additional sculpted details, sand, prime, paint.

But, that's just me.
Founder Special FX wiki http://fx.wikia.com
verdatum is offline   Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools

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 06:08 PM.

Copyright 2002-2017 Cosplay.com, LLC. All Rights Reserved.
All comments and posts in our forums are the opinion of the respective poster.