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Hot melt glue cast ammo

Post about things you have launched or thought about launching. Also post about various materials used for building cannons. No posts about explosive projectiles!
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Hot melt glue cast ammo

Unread postAuthor: TNW_NL » Mon Feb 18, 2008 6:27 pm

Hi all,

I was messing around and found this to be an easy way to cast ammo quickly.

Make a hollow paper roll equal to the ID of a barrel, cut it to equal sized pieces and fill it with molten hot glue.
The resulting slugs can be further perfected by casting cones with hot melt glue and attaching those to the slugs.
Still have to look into a way of making equal sized paper cones for the molds.

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Unread postAuthor: STHORNE » Mon Feb 18, 2008 7:04 pm

good idea, sounds time consuming but i think I'll try it :P
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Unread postAuthor: hi » Mon Feb 18, 2008 8:12 pm

now just mold it in some concrete or plaster...
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Unread postAuthor: STHORNE » Mon Feb 18, 2008 8:22 pm

well first of all TNW_NL, what caliber/size are your hot-glue slugs/ what is the size of the barrel you are using them for??
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Unread postAuthor: psycix » Tue Feb 19, 2008 7:08 am

Looks good!
Have you tested em yet?
Wont they tumble around during flight? (consider hollow-tail)
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Unread postAuthor: jackssmirkingrevenge » Tue Feb 19, 2008 7:15 am

psycix wrote:Wont they tumble around during flight? (consider hollow-tail)


You could also put some lead shot or similar heavy metal particles in the nose portion before you pour in the glue ;)
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Unread postAuthor: Spitfire » Tue Feb 19, 2008 9:29 am

Or use moulds for bullets, just substitute the lead with Your hot glue
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Unread postAuthor: TNW_NL » Wed Feb 20, 2008 4:38 pm

sthorne wrote:well first of all TNW_NL, what caliber/size are your hot-glue slugs/ what is the size of the barrel you are using them for??


I used a piece of crap cellcore pvc that I had lying around. But 32mm cellcore has not the same ID as 32mm pressure rated PVC :roll:
Diameter of this slug is about 25mm. The proper diameter should be in the range of 27-29mm I think.

At the moment this is just an idea for making slugs. Later I will try to cast a larger number of test slugs with the correct size :)

By the way, since its original purpose is to glue things together, it is hard to make reusable moulds. For example, it will not glue PVC together properly, but it sticks to it quite well.
It seems to have less grip on polyethylene plastic, maybe I'm going to make a mould out of that material.
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Unread postAuthor: STHORNE » Wed Feb 20, 2008 6:39 pm

try "lubing" your mould (grease, oil, water, etc) before you inject the hot glue, then it is less likely to stick 8)
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Unread postAuthor: OuchProgramme » Wed Feb 20, 2008 7:20 pm

Hmm...interesting idea

How about some damage pictures?
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