Talonairgun | chrbarth | Activity https://talonairgunforum.com/members/chrbarth/activity/ Activity feed for chrbarth. Thu, 09 Jul 2026 01:06:06 -0400 https://buddypress.org/?v= en-US 30 hourly 2 4a6f4d0db4ca8b3f369ce29ca248f7fe chrbarth replied to the topic Airgun calculations: Pressure in the forum Mods/Machinists https://talonairgun.com/forums/topic/airgun-calculations-pressure/#post-135394 Mon, 13 Jun 2011 10:02:21 -0400 Alrighty then…I can some figuring and calculating now, draw prints,…

I was actually thinking of buying an airgun ad take it appart..I might just do that.

Of course you can come along. We can probably help each other out on certain questions and issues.

That will be a hobby project for me though. It can take a while until I am actually…Read more

]]> 3754d4b8ea2b8c4bae72a18b237a9046 chrbarth replied to the topic Airgun calculations: Pressure in the forum Mods/Machinists https://talonairgun.com/forums/topic/airgun-calculations-pressure/#post-135349 Sun, 12 Jun 2011 06:01:17 -0400 Sweet!

Thank you so much. The formula to calculate the spring I knew already. I though you said it had to do with the piston weight (1st answer) or did I get that wrong?

One more thing: How much higher would you estimate the pressure? I though 10-15% should cut it…

I want to build a spring piston airgun, because I can adjust the pressure to…Read more

]]> 4dbca3cf205c2ee50f0fbe60e9c6927d chrbarth replied to the topic Airgun calculations: Pressure in the forum Mods/Machinists https://talonairgun.com/forums/topic/airgun-calculations-pressure/#post-135337 Sat, 11 Jun 2011 19:40:06 -0400 Hi Al,

Thank you for your help!

From the book I mentioned earlier I know how to achieve that compression and how to calculate the energy needed to compress the piston.

But how do I calculate the strength of the spring?

Christian

]]> 7fc1fcac9d3ca21e0e1b57b84479c648 chrbarth replied to the topic Airgun calculations: Pressure in the forum Mods/Machinists https://talonairgun.com/forums/topic/airgun-calculations-pressure/#post-135327 Sat, 11 Jun 2011 09:29:57 -0400 Hi Gippeto,

Thank you for your answer. I will try the program later – I am on my cell right now. The screen shot looks promising though!

I know it’s not an easy question. I spent about three weeks on searching google, forums and so on finding about nothing useful…

What I did find is the scan of a book called ‘The Airgun From Trigger To…Read more

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