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Pneumatic potato acceleration unit

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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Pneumatic potato acceleration unit

Unread postAuthor: wotti1 » Thu Apr 20, 2017 4:40 am

Hi, i'm a bit new to all this.
I'm hoping this is a picture of my latest spud gun. If not could someone tell me how to upload a photo?


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Last edited by jrrdw on Thu Apr 20, 2017 7:25 am, edited 1 time in total.
Reason: Fixed img tag, replaced address link with direct link.

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Re: Pneumatic potato acceleration unit

Unread postAuthor: jackssmirkingrevenge » Thu Apr 20, 2017 9:03 am

That looks like it comfortably exceeds 12 ft lbs, hope you're keeping a low profile ;)
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Re: Pneumatic potato acceleration unit

Unread postAuthor: farcticox1 » Thu Apr 20, 2017 5:13 pm

very nice :bounce:
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Re: Pneumatic potato acceleration unit

Unread postAuthor: wotti1 » Fri Apr 21, 2017 10:55 am

Is there any easy way of testing how powerful it is?
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Re: Pneumatic potato acceleration unit

Unread postAuthor: encohen » Tue Apr 25, 2017 5:17 am

Thats a vicious looking gun, in a good way.
Any damage pics?
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Re: Pneumatic potato acceleration unit

Unread postAuthor: jackssmirkingrevenge » Tue Apr 25, 2017 8:34 am

wotti1 wrote:Is there any easy way of testing how powerful it is?


Normally you'd need a chronograph but you'd also need a spare hundred quid

Here's a way to measure velocity without a chrony that in many cases will give you reasonable accuracy.
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Re: Pneumatic potato acceleration unit

Unread postAuthor: Xamllew » Tue Apr 25, 2017 5:09 pm

jackssmirkingrevenge wrote:
wotti1 wrote:Is there any easy way of testing how powerful it is?


Normally you'd need a chronograph but you'd also need a spare hundred quid

Here's a way to measure velocity without a chrony that in many cases will give you reasonable accuracy.


There is also a smartphone app that automatically does what you'd need to do in your second link, it's designed for airguns though so no telling if it'd be able to register a potato cannon.
I believe it's called ChronoFX.
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Re: Pneumatic potato acceleration unit

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Re: Pneumatic potato acceleration unit

Unread postAuthor: farcticox1 » Tue Apr 25, 2017 6:40 pm

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