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machined APFSDS projectiles

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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Re: 6mm APFSDS - any interest?

Unread postAuthor: D_Hall » Thu Nov 10, 2011 11:28 pm

jackssmirkingrevenge wrote:I've been having a play with milled collars to turn small masonry nails into stable darts without any modification of the nail itself. In 6mm calibre, a simple airsoft BB serves as a sabot.

Strictly speaking, what you're describing isn't a sabot but rather a "pusher plate". Albeit an oddly shaped one.
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Unread postAuthor: jackssmirkingrevenge » Fri Nov 11, 2011 12:54 am

jor2daje wrote:I know its not terribly accurate, but if its strong enough to mill afterwards, you can print oversize and mill important features down, much like a casting.


Fair point.

haha ya, little too expensive for a starving college student. I like the $100 board and $30 for 4 steppers, make my own mounts and couplings alot more than couple hundred maybe 1k for their kits.


Certainly an interesting project. I was thinking of selling out and purchasing their own upgrade though :roll:

Strictly speaking, what you're describing isn't a sabot but rather a "pusher plate".


Bah, semantics :) technically this is a sabot:

Image

:D

Albeit an oddly shaped one.


In 6mm it's convenient, lightweight, low friction, cheap and strong enough for the job at hand ;)
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Unread postAuthor: jor2daje » Fri Nov 11, 2011 1:13 am

haha thats because lemaudit has been brainwashing you, soon youll be a sherline salesman too.
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Unread postAuthor: jackssmirkingrevenge » Fri Nov 11, 2011 1:21 am

jor2daje wrote:haha thats because LeMaudit has been brainwashing you, soon you'll be a sherline salesman too.


hehe very true, instead of pausing to allow time for the accessories to pay for themselves I've just been buying more :roll: but for now at least I feel my setup is "complete", I/we have a few projects in the pipeline with commercial potential so it's all good :)
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Unread postAuthor: Brian the brain » Fri Nov 11, 2011 11:01 am

spudders tend to be a tight lot (or toight, depends on where they are
)



:D
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Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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Unread postAuthor: warhead052 » Fri Nov 11, 2011 11:32 am

I would be interested in buying a few, my only problem is I wouldn't be able to get them very easily. Plus I don't have a pneumatic that is strong enough to shoot them with accuracy.
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Unread postAuthor: jackssmirkingrevenge » Fri Nov 11, 2011 1:30 pm

Brian the brain wrote::D


Was hoping either you or Labtec would spot that ;)

I would be interested in buying a few, my only problem is I wouldn't be able to get them very easily. Plus I don't have a pneumatic that is strong enough to shoot them with accuracy.


The whole point of these rounds is that they are relatively light but with high sectional density compared to full bore projectiles, so they can perform well even in relatively weak launchers.

I'm half tempted to build a marble calibre 1x combustion to prove a point...
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Unread postAuthor: al-xg » Fri Nov 11, 2011 4:44 pm

Penetration is only half the story :/

A stable aerodynamic projectile is useful where other projectiles loose accuracy and stability in high powered launchers.
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Unread postAuthor: jackssmirkingrevenge » Sat Nov 12, 2011 1:58 am

al-xg wrote:A stable aerodynamic projectile is useful where other projectiles loose accuracy and stability in high powered launchers.


If absolute accuracy was required, projectiles would have to be extremely uniform and therefore more expensive, casting would definitely be the route to take.
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Unread postAuthor: Labtecpower » Sat Nov 12, 2011 4:50 am

Was hoping either you or Labtec would spot that :wink:


Spotted that, but i'm not tight, i'm "zuunig" :D

About the projectiles, couldn't you make them in a way the nail wouldn't stop penetrating the target because the fins are stopping it?
(the fins slipping off the nail at impact)
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Unread postAuthor: jackssmirkingrevenge » Sat Nov 12, 2011 5:33 am

Labtecpower wrote:About the projectiles, couldn't you make them in a way the nail wouldn't stop penetrating the target because the fins are stopping it?
(the fins slipping off the nail at impact)


If you're prepared to cut the head off the nail, sure ;) and it's even better for CG!

[youtube]http://www.youtube.com/watch?v=yGchaN9SZ0Q[/youtube]

(there was a separate polycarbonate sheet between the housing and the target btw ;))
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Unread postAuthor: Labtecpower » Sat Nov 12, 2011 6:47 am

Very nice :)

I might try to make one of these today, I have some large nails lying around. Shot from the mini hybrid they should do some damage :)
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Unread postAuthor: Gun Freak » Sat Nov 12, 2011 10:34 am

Jsr... did you crack your camera shield?
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Unread postAuthor: Labtecpower » Sat Nov 12, 2011 10:38 am

jackssmirkingrevenge wrote:(there was a separate polycarbonate sheet between the housing and the target btw )

:wink:
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Unread postAuthor: jackssmirkingrevenge » Tue Apr 02, 2013 11:36 pm

Vaguely related, a few "heavy" darts I cooked up for a possible future co-op project:

Image

Image

For scale, penetrator diameter is 8mm. More details eventually.
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