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$37AUD Hybrid

Built a hybrid cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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$37AUD Hybrid

Unread postAuthor: Zeus » Fri Jul 02, 2010 12:49 am

Yesterday I designed a hybrid (in my head). I ended up in a hardware
store 4 1/2 hours ago. This is the result.

It still needs the spark gap, cable gland & one way valve.

I want to install a 1/4 inch NPT shrader, instead of binary adhesives.

And the specs

15mm bore (at the moment)
45cm barrel
45cc chamber
20mm burst disc
1-5X mix

That's about the sum of it, so let me know if I've missed anything
or if you want to know something.
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Attachments
1.jpg
Sorry, the photo is terrible
2.jpg
The chamber, handle & union
3.jpg
A closeup of the union. Anyone seen one like it?
4.jpg
The union open
DSCN1576.JPG
Update, nearly finished
Last edited by Zeus on Wed Oct 27, 2010 4:44 pm, edited 2 times in total.
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Unread postAuthor: jackssmirkingrevenge » Fri Jul 02, 2010 1:43 am

Does the barrel have a seam through it? How do you plan on installing the ignition?
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Unread postAuthor: Zeus » Fri Jul 02, 2010 1:49 am

The barrel is seamed, but I plan to wad the projectiles. Also, ignition
will be machined HDPE with a M3 25mm bolt.
It's low voltage ignition, so insulation isn't much of a problem.

Thanks for replying.
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Unread postAuthor: jackssmirkingrevenge » Fri Jul 02, 2010 1:51 am

Ah, a couple of firings and the seam will probably wear smooth anyway ;) good luck with making it happen. Is it going to be hand-held or mounted?
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Unread postAuthor: chinnerz » Fri Jul 02, 2010 1:53 am

Nice work mate!

Can't wait to see it shoot

It's always nice to see a fellow Aussies creations.
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Unread postAuthor: Zeus » Fri Jul 02, 2010 1:55 am

Handheld, the damn barrel was the most expensive part, I couldn't get the 7.5mm 100cm aluminium tube that I wanted, couldn't find the 12mm
150cm copper either.


[Edit: thanks chinnerz, I should have it going by Monday]
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Unread postAuthor: ilovefire » Fri Jul 02, 2010 4:36 am

hey looks good, you going to make a stock for it? love to see it when its finished
and if you dont mind me asking how much was the chamber and end caps?
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Unread postAuthor: Zeus » Fri Jul 02, 2010 9:50 pm

Thanks, I might make a wire frame stock, the end caps were $1.69 &
the chamber was $7.80.

If you (or anyone else) is in Aus, let me know and I'll PM you the hardware store name.
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Unread postAuthor: Crna Legija » Fri Jul 02, 2010 10:51 pm

its probly bunnings, im from aus
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Unread postAuthor: chinnerz » Fri Jul 02, 2010 10:54 pm

I think that's cheaper than my bunnings.
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Unread postAuthor: Crna Legija » Fri Jul 02, 2010 11:01 pm

idk the excact price but its about that for me, im from melbourne tho. i also work there so i get 10% discount :D :D
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Unread postAuthor: Zeus » Sat Jul 03, 2010 1:53 am

Nope, Home Hardware all the way (sorry -_-). I'm from Central Vic
so I went to Bendigo.

The union was $5.80, and there was 25mm unions as well, so I've got
a source for my light gas gun build.
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Unread postAuthor: auspud » Sun Jan 30, 2011 4:48 am

you could use a old 12g or 20g shot gun barrel weld it to a nut . that way you could have a really smooth inside & use shotgun wads as your sabot . + then use solid slugs or shot . i have been told 20g is the same as .577 - 58 cal & paint balls .
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Unread postAuthor: linuxexorcist » Sun Jan 30, 2011 6:11 am

Zeus wrote:I want to install a 1/4 inch NPT shrader, instead of binary adhesives.

Really JSR? nothing to say on that?

less than $50 for a hybrid? I think that's awesome, might look into it

I probably would use copper pipe for the barrel, as this handy guide shows, it can take hybrid pressures.

How do you intend to meter your fuel and pressurize the cannon?

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From the copper tube handbook in the link
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Unread postAuthor: jackssmirkingrevenge » Sun Jan 30, 2011 6:20 am

linuxexorcist wrote:Really JSR? nothing to say on that?

less than $50 for a hybrid? I think that's awesome, might look into it


All I can say is that there is probably less than $10 of material in any of the hybrids I've built so far ;)
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