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Posted: Tue Jun 19, 2012 12:59 am
by jackssmirkingrevenge
Hehe it's the only hvbrid I have working at the moment :)

Posted: Tue Jun 19, 2012 1:02 am
by Petitlu
Et un peu le ThorJack aussi ! :wink:

Posted: Tue Jun 19, 2012 1:05 am
by jackssmirkingrevenge
hehehe, I'm spudding by proxy :D

Posted: Tue Jun 19, 2012 1:39 am
by Petitlu
I will try to make a mold of a spoiler delrin that thou hast made​​.
I can then pour it hot glue for example

Posted: Tue Jun 19, 2012 2:00 am
by jackssmirkingrevenge
Petitlu wrote:I will try to make a mold of a spoiler delrin that thou hast made​​.
Shakespeare translator again :D
I can then pour it hot glue for example
Hot glue will not be strong enough... maybe a brass mould for lead, along the lines of this one but for a dart shape?

Posted: Tue Jun 19, 2012 2:06 am
by Petitlu
replace the delrin glue on a concrete example nail dart

or a mold with the shape of your APFSDS where I can put a tungsten rod ...

Posted: Tue Jun 19, 2012 2:15 am
by jackssmirkingrevenge
Epoxy resin would be a better idea :) if you have access to some I can quite easily mill a fin mould that will fit a nail or the tungsten.

Posted: Tue Jun 19, 2012 2:21 am
by Petitlu
It would be such a great mold :!:

I have much of epoxy because I'm stratification carbon and kevlar for my water rockets

Posted: Tue Jun 19, 2012 2:39 am
by jackssmirkingrevenge
Excellent :) I'll see what I can cook up. Remind the exact diameters of your nails? (both smooth part and ridged part)

Also do you have access to 12mm rod to cut pusher plates out of, or do you need moulds for these as well?

Posted: Tue Jun 19, 2012 2:53 am
by Petitlu
For the pusher plate I can use plastic rods or rubber roller for valves.
it is certain that mold would be more accurate

dimensions of nails:
Smooth diameter: 3.4mm
Striated diameter: 3.5mm

Posted: Tue Jun 19, 2012 5:03 am
by jackssmirkingrevenge
Hmmm, for synthetics I could actually make the mould out of delrin. I might give it a go today if I get home at a reasonable hour.

Posted: Tue Jun 19, 2012 5:24 am
by Petitlu
Great!
thank you!
:D

Posted: Sat Jun 23, 2012 1:13 am
by jackssmirkingrevenge
Damn, pure tungsten is *really* brittle - this happened when I dropped it on the floor!

Posted: Sat Jun 23, 2012 2:37 am
by Petitlu
:shock: :shock:

this is glass!
I'll keep using carbide ...
The fin brass looks good!

This afternoon I fire!
I prepared new projectiles

Image

Image

Image

Posted: Sat Jun 23, 2012 5:14 am
by jackssmirkingrevenge
Interesting! So you've added a copper sheath for the tungsten? That first one, what is it exactly?

I made a brass dart for the broken half of the tungsten, at 17x it made a brass lined hole exactly half way through the plate, 1/8".

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