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Hybrid ThorJack

Post questions and info about hybrid (compressed gas with fuel) powered cannons here. This includes discussion about fuels, ratios, ignition systems, build types, safety, and anything else relevant.
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Unread postAuthor: jackssmirkingrevenge » Fri May 11, 2012 9:22 am

Petitlu wrote:therapy?


Yes, a bit of machining is good for the spirit :)

Meditation is concentrating the front mind on a mundane task so that the rest of the mind can find peace.

Image


I will still try to pierce the point stainless steel ... :wink:


Be careful!

Here's what I have in mind for the dart, 8mm body diameter and six fins.
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Unread postAuthor: Petitlu » Fri May 11, 2012 11:29 am

very nice!

complex to do ... the fins are made ​​separately and glued?
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Unread postAuthor: jackssmirkingrevenge » Fri May 11, 2012 11:34 am

No, all from one solid piece of brass.

Not that complex to do.
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Unread postAuthor: Petitlu » Fri May 11, 2012 11:41 am

ok brass, delrin I thought ...
fins are not high ...
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Unread postAuthor: jackssmirkingrevenge » Fri May 11, 2012 3:40 pm

Ah, that was therapeutic :)
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Unread postAuthor: Lockednloaded » Fri May 11, 2012 3:45 pm

Haha, at first glance I thought you were showing off a new screwdriver :D
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Unread postAuthor: Petitlu » Fri May 11, 2012 3:45 pm

Wow! :shock:
Wonderful and beautiful!
How many time to do it?
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Unread postAuthor: jackssmirkingrevenge » Fri May 11, 2012 3:55 pm

Petitlu wrote:Wow! :shock:
Wonderful and beautiful!


Cheers :)

How many time to do it?


Enough not to make mass production feasible ;)

I also need to make a delrin plug to stop the tungsten's inertia making it fall out...
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Unread postAuthor: Petitlu » Fri May 11, 2012 4:10 pm

"Enough not to make mass production feasible "

I am sure! :D

And if is glued the tungsten? a little hot glue or epoxy ...

The stainless steel point was glued with hot glue on the aluminum body
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Unread postAuthor: jackssmirkingrevenge » Fri May 11, 2012 4:15 pm

Definitely will need some epoxy, but it's better to have something physical between the pusher plate and the tungsten.
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Unread postAuthor: Petitlu » Fri May 11, 2012 4:25 pm

ok
But the tail should not be heavy ...
Finally you know very well!
:wink:

Your missile weighs how much?
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Unread postAuthor: Gun Freak » Fri May 11, 2012 5:06 pm

Won't the brass nose just get crushed?
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Unread postAuthor: jackssmirkingrevenge » Fri May 11, 2012 11:18 pm

Gun Freak wrote:Won't the brass nose just get crushed?


Yep,read up ;)

But the tail should not be heavy ...


Tungsten: 19.25 g/cm<sup>3</sup>

Delrin: 1.42 g/cm<sup>3</sup>

I think balance will be fine ;)

Your missile weighs how much?


Here you go:
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Unread postAuthor: Petitlu » Sat May 12, 2012 2:38 am

it is beautiful! it shines!

With tungsten carbide it will weigh 38.46g, practically 40g with delrin! :shock:

EDIT :

you'll put the delrin like that?

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Unread postAuthor: jackssmirkingrevenge » Sat May 12, 2012 3:50 am

Petitlu wrote:With tungsten carbide it will weigh 38.46g, practically 40g with delrin!


More muzzle energy but lower velocity, so less chance of the tungsten core shattering. I want this thing to go through both flanges of the beam :D

you'll put the delrin like that?


Like this:
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