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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SpudFarm
- First Sergeant 3

- Posts: 2571
- Joined: Sat Nov 04, 2006 9:39 am
- Location: Norway Trondheim area
Wed Dec 17, 2008 6:53 pm
i second PhotoShop CS4, it's a great program.
it is expensive but it is sure worth it!

"Made in France"
- A spud gun insurance.
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Xxplosive42o
- Specialist

- Posts: 134
- Joined: Tue Dec 09, 2008 5:57 pm
- Location: Los Angeles, Ca.
Wed Dec 17, 2008 8:43 pm
Solid Works 3d 2009. By far the best program I have ever used.
This is a rather simple use of it's tools. I say simple because it hasn't been assigned a texture or color or the million other things you can do!

" Forget about all the reasons why something may not work. You only need to find one good reason why it will. "
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microman171
- Specialist

- Posts: 189
- Joined: Wed Apr 30, 2008 11:49 pm
Wed Dec 17, 2008 10:36 pm
How does 2009 compare to, say, 2004?
I managed to score a free copy from a company who had upgraded and solid works was just laying around doing nothing.
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TurboSuper
- Corporal 5

- Posts: 986
- Joined: Thu Jun 16, 2005 1:44 pm
- Been thanked: 1 time
Wed Dec 17, 2008 11:05 pm
http://www.a9tech.com/
This is a nice and free CAD program. Should be more than sufficient for a potato cannon, since the only thing I can see you needing it for is easy scaling.
"If at first you dont succeed, then skydiving is not for you" - Darwin Awards
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D_Hall
- Staff Sergeant 5


- Posts: 1924
- Joined: Thu Feb 07, 2008 7:37 pm
- Location: SoCal
- Has thanked: 8 times
- Been thanked: 44 times
Thu Dec 18, 2008 9:29 am
I use Alibre (
www.alibre.com). It doesn't do everything that Solid Works or Pro Engineer does, but it does everything I need and costs a LOT less (note that there is a free version too).
And to hotwired I would ask: OK, great... Now if you want to scale parts of the design up or down how long does that take? With proper use of a CAD package, it literally takes 1-2 seconds.
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Hotwired
- First Sergeant 3

- Posts: 2599
- Joined: Fri Oct 13, 2006 5:51 am
- Location: UK
Thu Dec 18, 2008 10:04 am
It needs a total redraw of course in a bmp format.
Unless done at a large scale to start with. Which is what I do if I make something I want at several sizes.
Was kinda tricky on my 17" monitor as it literally didn't fit the screen zoomed out but I've got a 22" TFT now which is sufficient for a canvas of 2000x750 pixels.
I use AutoCad too but I just cant be bothered for simple designs. More work required to draw it than make it. That cannon sketch, every part is blindingly obvious, it's going to be exactly the same the other side and nothing on there needs any detailed notes for fabrication.
If it was a machined valve I'd make a properly scaled and annotated diagram but for not for cannons using standard parts.
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raptorforce
- Specialist

- Posts: 137
- Joined: Wed Nov 26, 2008 2:18 am
Thu Dec 18, 2008 10:51 am
i know this is super off topic but how do you upload pictures because when i tried i tired to put the picture under filename when you push browse then i put add attachment. but then it said the file you have tried to upload is empty would anyone like to help me it would be greatly appreciated