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Author Topic: Contemplating an Airgun version of Open Source  (Read 147 times)

steveoh

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Contemplating an Airgun version of Open Source
« on: January 10, 2017, 09:35:54 AM »
As I was driving in the rain to work this morning, my mind drifted off into airgun land, and I somehow contemplated an Open Source Airgun project similar to something the like AR15 phenomenon. You know, basic military type specifications for an Airgun where anyone can build the basic parts, and improve on them, but with the goal of always have bolt on bits and pieces.

Since there is already a huge industry behind AR15 clones, furniture and custom bits and pieces, it made since to me that an open source design could start there.

I realize that there are already designs that due to their 350 chevy like popularity, such as the Marauder,  they are almost open source. Almost being the keyword. I'd not be surprised that a large manufacturer such as Crosman get involved, but perhaps it would behoove a group such as the Guild to collaborate on such a project.

If there were such a project what would folks like to see?

Steveoh


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oldpro

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Re: Contemplating an Airgun version of Open Source
« Reply #1 on: January 10, 2017, 10:23:37 AM »
The Marauder is that and more already Allen and all the parts can be bought cheaply from crosman so I dont think you need to look further.
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Alan

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Re: Contemplating an Airgun version of Open Source
« Reply #2 on: January 10, 2017, 10:43:18 AM »
Do you mean Steve or Alan?

I agree with Travis. A recent post dealing with a folding stock adapter is a good example.

There is one thing I can't find, even though I have looked, and that is a rubber tail piece for the buttstock. I typically shoot over the top of my pickup (standing in the bed), and one has to be careful when resting the buttstock so you don't mar the paint.
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Alan

I have an Omega compressor. If you're a fellow Guild member, and you pass through Roswell, NM, I'll fill your portable tank as a courtesy.

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Re: Contemplating an Airgun version of Open Source
« Reply #3 on: January 10, 2017, 12:58:49 PM »
John Kopaz approached me last spring with this idea, and Lloyd Sikes and I have spent a lot of time on it over the summer.... We have made good progress, but there is still a lot to be done.... It uses the MRod Gen 1 or PRod trigger groups, but virtually everything else is new or different.... The concept is a good one, though, with only a few basic concepts and dimensions that must be adhered to.... for example the attachment points between the upper and lower assemblies, and the triggers.... It's pretty tricky to control some parts, yet leave as much freedom as possible for others....

Since this was primarily to be a Big Bore, our original idea was to start with a (custom) Cothran valve (to reduce cocking force), but leaving lots of room for future balanced valve development.... When we found out that the Powerhouse valve couldn't produce a bell-curve and needed to be in a regulated PCP, development stalled at that point.... The project isn't dead, but it may be on life support at the moment.... The design was intended to use Titanium tubes, and have a MSWP of 4500+ psi....

Bob
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mobilehomer

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Re: Contemplating an Airgun version of Open Source
« Reply #4 on: January 10, 2017, 12:59:02 PM »
Alan, have you looked at a slip-on recoil pad? Everybody from Wally World to sporting goods stores carry them.
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Alan

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Re: Contemplating an Airgun version of Open Source
« Reply #5 on: January 10, 2017, 01:31:02 PM »
Yes I have, and I do have one I bought at a local gun show for just $2! What I want to do, is find a used bipod that I can adapt for the use. There is another gun show this week end, and you never know!
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Alan

I have an Omega compressor. If you're a fellow Guild member, and you pass through Roswell, NM, I'll fill your portable tank as a courtesy.

steveoh

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Re: Contemplating an Airgun version of Open Source
« Reply #6 on: January 10, 2017, 02:06:44 PM »
This is what I had in mind. The ability to use off the shelf parts that exist or can exist without dealing with lawsuits from a manufacturer such as Crosman.

Seems like the hard part is getting folks to agree on the basic design and details.

The whole idea is to open up a cottage industry, and to allow folks to put together pieces and parts that best represent their ideas, while not having to do one's own machining. Components can be the basic bits like the trigger groups you mention, but can also be super fancy trigger groups that folks would design and machine and offer up for purchase. Make the sky the limit!

I'm ready to buy a basic big bore rifle as you mention, and then add to it as I see fit!



John Kopaz approached me last spring with this idea, and Lloyd Sikes and I have spent a lot of time on it over the summer.... We have made good progress, but there is still a lot to be done.... It uses the MRod Gen 1 or PRod trigger groups, but virtually everything else is new or different.... The concept is a good one, though, with only a few basic concepts and dimensions that must be adhered to.... for example the attachment points between the upper and lower assemblies, and the triggers.... It's pretty tricky to control some parts, yet leave as much freedom as possible for others....

Since this was primarily to be a Big Bore, our original idea was to start with a (custom) Cothran valve (to reduce cocking force), but leaving lots of room for future balanced valve development.... When we found out that the Powerhouse valve couldn't produce a bell-curve and needed to be in a regulated PCP, development stalled at that point.... The project isn't dead, but it may be on life support at the moment.... The design was intended to use Titanium tubes, and have a MSWP of 4500+ psi....

Bob
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steveoh

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Re: Contemplating an Airgun version of Open Source
« Reply #7 on: January 10, 2017, 02:11:12 PM »
And.... could set up a store on the Guild to let folks pick and choose their pieces and parts. 

The Airgun Guild Custom Shop!

Make it easy for vendors to sell their stuff, and make it easy for buyers.
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oldpro

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Re: Contemplating an Airgun version of Open Source
« Reply #8 on: January 10, 2017, 03:11:58 PM »
 Alan that would be a bad idea on so many levels I couldnt list them all.
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