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Re: "In the world of spuds today"

Posted: Mon Sep 16, 2019 9:52 am
by jackssmirkingrevenge
That's pretty good!
Labtecpower wrote:There seems to be a lot of air coming out after the pellet has left the barrel. I was thinking something in the direction of decreasing the valve dwell time and making the diameter of the air path larger. Maybe you can enlighten me :P
Oh there's a lot that can be done!

This article is a good place to start: https://hardairmagazine.com/ham-columns ... ated-pcps/

In fact all of Sterne's articles are worth looking at, if you want the ultimate in efficiency check out the “Stopping Spring Guide” concept that greatly reduces hammer valve bounce.

Re: "In the world of spuds today"

Posted: Wed Oct 02, 2019 2:41 pm
by hectmarr
In fact, the energy of butane vs. hydrogen. Interesting.
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Re: "In the world of spuds today"

Posted: Thu Oct 03, 2019 3:06 pm
by hectmarr
In the end I bought the red dot sight and installed it on the co2 gun. It is a Chinese sight, but it works well to play a little. It is made of non-plastic aluminum and the regulator is about 15 meters away. Quick to focus the objective, much more than with the open system of rise and point that the weapon brings. I just wanted to show you, although I have not manufactured anything of this weapon.

Re: "In the world of spuds today"

Posted: Thu Oct 17, 2019 10:37 am
by mark.f
Winter is coming.
So we're going with solid-core ABS and aluminum for this build.

Re: "In the world of spuds today"

Posted: Thu Oct 17, 2019 11:15 am
by jackssmirkingrevenge
He's back at it :) anything of note or just scratching that itch?

Re: "In the world of spuds today"

Posted: Thu Oct 17, 2019 7:36 pm
by Moonbogg
I thought by now I'd understand how a combustion works, but I can't figure out why there are two camlocks on this thing. Also, is that an aluminum section in the middle? I have a soft spot for combustion cannons. Let's get some details on this creation...

Re: "In the world of spuds today"

Posted: Fri Oct 18, 2019 4:45 am
by mark.f
jackssmirkingrevenge wrote:He's back at it :) anything of note or just scratching that itch?
Mainly just scratching an itch. Have some bigger plans but I need a bigger workspace.
Moonbogg wrote:I thought by now I'd understand how a combustion works, but I can't figure out why there are two camlocks on this thing. Also, is that an aluminum section in the middle? I have a soft spot for combustion cannons. Let's get some details on this creation...
Camlocks are just faster than threads. I don't plan on having to remove the 3" "endcap" one during normal operation, but it's there anyway. The aluminum section in the middle is because the only ABS I can find (even online) is cellular core.

Re: "In the world of spuds today"

Posted: Sat Oct 19, 2019 2:38 pm
by farcticox1
I haven't been doing much lately, sort of got into building bikes :shock:

I have turned the BFG into a MFG, cut down the barrel , removed all the semi auto bits, cut the body down a bit and now using a diiferent gravity fed mag which holds 20 BBs :D
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Started making a folding stock for the pump action, because folding stocks :D just got to finish the butt plate.
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Re: "In the world of spuds today"

Posted: Sat Oct 19, 2019 3:57 pm
by Moonbogg
Whoa, that thing looks awesome. Looks like a sub machine gun, lol.

Re: "In the world of spuds today"

Posted: Sat Oct 19, 2019 5:15 pm
by farcticox1
That's this one :P
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Re: "In the world of spuds today"

Posted: Wed Oct 23, 2019 8:18 am
by hectmarr
It looks good, adaptation.

Re: "In the world of spuds today"

Posted: Sun Dec 01, 2019 3:22 pm
by Cthulhu
Just bought my first welder, looking forward to moving on from pvc!
Now I have to learn to weld properly lmao
What welding processes do you guys use? I picked up a titanium flux 125 on black friday, I was originally gonna try stick but the learning curve was intimidating and it didn't seem well suited for the thinner materials and more precise welds that I need for spudding.

Re: "In the world of spuds today"

Posted: Sun Dec 01, 2019 3:56 pm
by jrrdw
Cthulhu wrote:Just bought my first welder, looking forward to moving on from pvc!
Now I have to learn to weld properly lmao
What welding processes do you guys use? I picked up a titanium flux 125 on black friday, I was originally gonna try stick but the learning curve was intimidating and it didn't seem well suited for the thinner materials and more precise welds that I need for spudding.
Mig, Tig, both? 2 in 1 machine? :D

Re: "In the world of spuds today"

Posted: Mon Dec 02, 2019 9:06 pm
by Cthulhu
I wish! I had to settle for fluxcore, which is basically stick welding but the electrode is in a wire form. Luckily it was less than 150 bucks on black friday though

Re: "In the world of spuds today"

Posted: Sun Dec 22, 2019 3:39 pm
by Cthulhu
Got some practice with the welder by making a tool for the lathe. I've been needing a tool rest more suited towards the carbide tooling I use so I welded this together. The welds have really bad porosity but I believe that is because I was holding the gun at the wrong angle and I wasn't moving consistently enough.
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Either way, it works and I'm getting closer to welding spud guns together!