Show us your pneumatic spud gun! Discuss pneumatic (compressed gas) powered potato guns and related accessories. Valve types, actuation, pipe, materials, fittings, compressors, safety, gas choices, and more.
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Luke31
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Wed Mar 17, 2021 11:41 am
I am trying to use the GGDT software but im having issues. I keep getting an error stating that the projectile never cleared the barrel, but I believe I put in reasonable numbers.
The odd thing is if I increase the chamber inner diameter, it decreases the volume. If I increase the outer diameter, it increases the volume. I don't know why the outer diameter is even relevant to the experiment since its just the wall thickness.
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jackssmirkingrevenge
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Wed Mar 17, 2021 12:12 pm
"Outer Diam" is the inner diameter of your chamber tube.
"Inner Diam" is the outer diameter of your barrel for a coaxial cannon.
If your design is not a coaxial, the "Inner Diam" should be zero.
hectmarr wrote:You have to make many weapons, because this field is long and short life
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Luke31
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Wed Mar 17, 2021 2:18 pm
jackssmirkingrevenge wrote: ↑Wed Mar 17, 2021 12:12 pm
"Outer Diam" is the inner diameter of your chamber tube.
"Inner Diam" is the outer diameter of your barrel for a coaxial cannon.
If your design is not a coaxial, the "Inner Diam" should be zero.
Man how were we supposed to know that. Anyway I'm starting to get realistic numbers now. Thanks!
