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APFSDS rounds

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APFSDS rounds

Unread postAuthor: SpudFarm » Fri Aug 01, 2008 3:51 pm

i just started to work on my darts for the 1" steel plate and thought: "hmm i am pretty bored, mabe i can play abit with my huge drill press" so i did and was thinking i could make a notch on the back of the penetrator to catch it in the plate to look on the damage to the point of it and decide if i made it hard enough for future thicker plates.

so i made a 3mm deep notch and it was pretty fun so i started to make it look pretty and you can look on the pic and tell me if i did it well.


so i used was a 1cm thick steel bar, a flat file, a triangle shaped file, a 1600rpm drill press, a hacksaw and some sand paper for the looks.
i started of with the hacksaw, just pressed it against the steel and it cut itself in there. then i used a file of choice to make it look better and finally sandpaper to make it shiny.

enough talk!
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Last edited by SpudFarm on Sat Aug 02, 2008 4:24 pm, edited 1 time in total.
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Unread postAuthor: jrrdw » Fri Aug 01, 2008 4:10 pm

What will you use for the fletching and how will you hold it on the dart?
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Unread postAuthor: SpudFarm » Fri Aug 01, 2008 4:15 pm

if i want to shoot at some range i can weld on some fins, but in the testing i will be doing point blank shots.
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Unread postAuthor: Hotwired » Fri Aug 01, 2008 4:18 pm

Not too close :)

I did an extreme point blank shot against some steel coins backed by a chunk of wood.

The plastic slug acting as the bore filler for the penetrator wasn't entirely clear of the barrel when the tip made contact so it expanded IN the barrel tip and flared it out slightly :o
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Unread postAuthor: SpudFarm » Fri Aug 01, 2008 4:21 pm

hmm point blank will be two round lengthes i guess :P
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Unread postAuthor: SEAKING9006 » Fri Aug 01, 2008 6:18 pm

Drill presses are amazing things. If you know what you're doing, you can make a $40 drill press work as a mill, lathe, anything you want. I'm getting a new vise to put on mine that will make it able to work as a vertical mill. Will be very useful.
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Unread postAuthor: SpudFarm » Sat Aug 02, 2008 10:25 am

well i just decided that if i can't find the money somewhere i will sell my trials bike and get a lathe..

then if i can use it i might start to go on high pressures as larda did
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Unread postAuthor: Sticky_Tape » Sat Aug 02, 2008 11:07 am

Oh, I have done that stuff before for coat hanger wire darts works pretty good and looks good too good job.
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You can tell how awesome a cannon is by the pressure used.
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xnt rnm ne z ahtbg
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Unread postAuthor: SpudFarm » Sat Aug 02, 2008 11:12 am

thanks! it is a bit scary when your finders almost jam to the steel rod!

i am going to do some more on it soon
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Unread postAuthor: Sticky_Tape » Sat Aug 02, 2008 11:32 am

Jam on the steel rod? Never had that happen to me.
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Unread postAuthor: SpudFarm » Sat Aug 02, 2008 2:11 pm

i press a hacksaw against it and it suddenly goes against the finger.. fork that as i made a simple counter wait for that..

two new darts will be up in a sec one is a mean heavy fin stabilized one
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Unread postAuthor: Sticky_Tape » Sat Aug 02, 2008 2:16 pm

I don't get it but anyway. won't the welded on fins not allow the dart to penetrate?
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You can tell how awesome a cannon is by the pressure used.
http://www.spudfiles.com/forums/high-pr ... 12803.html
xnt rnm ne z ahtbg
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Unread postAuthor: SpudFarm » Sat Aug 02, 2008 2:20 pm

if it make it all the way to the fins is would have penetrated, and i rapibly cooled it after the welding so it is brittle.

i may machine a deep groove in front of the fins so it will snap.
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Unread postAuthor: Sticky_Tape » Sat Aug 02, 2008 2:24 pm

You mean drill press a grove?
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xnt rnm ne z ahtbg
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Unread postAuthor: SpudFarm » Sat Aug 02, 2008 2:25 pm

or simply make a groove :D

made a sabbot..
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well i made the sabbot.. i am going to put a wooden dowel in the back of it in the barrel and it is a true APFSDS round ;)

just have to try abit more with the western union sh!t
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