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cutaway mdoel of a 30mm x173 PGU-14/B round with uranium penetrator "3d printed"

microplastic

Well-Known Member
made with a 3d printer: cutaway model of a 30mm x173 PGU-14/B Armour Piercing Incendiary round used by GAU-8 on A-10. The PGU-14/B round has a lightweight body which contains a sub-calibre high density penetrator of Depleted Uranium (DU). In addition to its penetrating capability DU is a natural pyrophoric material which enhances the incendiary effects.
interessting way to make cutaway models...
 

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Yes - very interesting.
Could you describe the steps on how you produced it? (aka CAD standard .STL file via scan?)
And what type of 3D printer did you used? (i.e filament / liquid resin etc?)
Thanks
Cheers
Drew
 
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I printed all parts with white pla. Then i sanded and painted all parts. The penetrator was painted black and finished with graphit powder. I glued all together and added the propellant imitation.
For the rotating bands i did no painting cause they are white plastic in origin.

The used printer is the "Artillery sidewinder X2". For the payed 250€ you get a realy good printer, running until now several 100h without any problems...
However, there are now better models available, the development of 3D printers is really very fast.

Regards

 

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Great reply - thank you!
The "Artillery Sidewider X2" looks impressive - I have seen very similar types (probably all from the same Chinese factory) and they have a much larger printing area than my UP Plus2 . Further, the touch screen pad which includes both nozzle and platform temperature control is very desirable as the UP has fixed nozzle temperature for either ABS or PLA - a marketing ploy to buy only UP brand filaments. (although I found a hack for the UP to change the resistance of the thermometer (temperature sensor) which now provides 20 x different temperature settings between 217 -270 degrees C.
I have found 3D printing invaluable for prototyping - mostly for making replacement parts for some of my torpedo pistols missing strikers / whiskers:

Resized_20230505_074401.jpeg

The other advantage is once the ABS prototypes have been completed, I can just send the .STL files to a commercial 3D metal printer and have steel ones made for the final product.
Cheers
Drew
 
The other advantage is once the ABS prototypes have been completed, I can just send the .STL files to a commercial 3D metal printer and have steel ones made for the final product.
Cheers
Drew
Thats a smart move, do you have a foto of the steel made model?

Regards
 
Thats a smart move, do you have a foto of the steel made model?

Regards
Not yet - still finalizing the ABS prototype replacement "whiskers" (levers) as I wanted to have a tapered filleted edge on the top and bottom of the exposed lever arms - as this closely matches to the original levers.
After experimenting with numerous methods, the desire result can be achieved by creating a subtractive pipe along the specific edge distance..................just been busy with other "distractions" recently...........

Test.JPG
 
Thats a smart move, do you have a foto of the steel made model?

Regards
For your reference, there are photos in this post:


Cheers
Drew
 
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