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by Xamllew
Thu Mar 12, 2020 7:57 pm
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Re: Airsoft/ 1/4 ball bearings

farcticox1 wrote:
Thu Feb 13, 2020 4:56 am
McMaster Carr have this in brass https://www.mcmaster.com/8950k552
Just wanted to say I went ahead and ordered a piece of this and is an excellent airtight fit for store bought 1/4" slingshot ball ammo, airsoft barrel wall thickness, arrived un-bent too. Good find!
20200312_195844.jpg
by mrfoo
Mon Mar 16, 2020 2:32 am
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Re: Short question topic

Porting and piston form is going to be important to get air out of a short, squat, cylinder into a long, slender, barrel in a hurry. The big issue is, IMO, going to be changing the direction of the air, as such I'd probably go for a conical piston face mating to a conical cylinder end, with highly r...
by Gun Freak
Sun Mar 22, 2020 6:52 pm
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Howdy Gents! Don't remember the last time I signed into the files and made a post. Honestly, I'm surprised I even remembered my pword :lol: Interested to see who all is still active on here from the old days! @PCGuy I like what you've done with the place! Anywho, I want to drop a quick thanks to eve...
by hectmarr
Thu Apr 09, 2020 8:49 am
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Re: Self contained airsoft, pump action.

You see a very good construction, (as always, in your projects). It is nice to see someone who has and carries out a project from these sides. I congratulate you, and I look forward to new things from you. :D
 
by mark.f
Sat Apr 11, 2020 9:42 am
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Re: Self contained airsoft, pump action.

Ah, that makes sense. I should probably invest in making some of those since all I have are rings and buckets of sand to use until the gyms open back uip.
by Gun Freak
Sat Apr 11, 2020 1:09 pm
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Re: Re:

Thank you all for the support 8-) honestly pretty surprised to hear back from all of you so quickly haha! With your ever expanding knowledge and access to materials and tools, you'd think there are a few spudding projects knocking about in the works... NOW BUILD SOMETHING! :D Who ever said I stopped...
by mark.f
Sat Apr 25, 2020 6:14 am
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Re: New member... my baby, Big Red

What's the construction? Using pure oxygen + fuel in plastic piping isn't a great idea. Maybe that's why you didn't actually fire the thing in the video.
by jackssmirkingrevenge
Tue May 19, 2020 3:42 am
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Re: question about valves

farcticox1 wrote:
Mon May 18, 2020 5:48 pm
127mm or 12.7mm
Good catch, edited.
by hectmarr
Sun Jun 07, 2020 11:31 am
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Re: New spring powered airsoft

Very very very good construction job, :) :) :) :) I like it! The weapon is a little gem, in my opinion. Sometime in about 200 years I will be able to approach its high level of construction. The best I have seen in this forum. Keep building your things, much need. Greeting
by hectmarr
Wed Jun 10, 2020 8:16 am
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Re: Browning Airstar 200

It is the same in airsoft, as you explain. The concept survives there.
by jackssmirkingrevenge
Sun Jun 21, 2020 6:39 am
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The question "what is the best tank?" as a way of examining engineering stereotypes

I found this quite interesting:



The Tank Museum's channel in general is worth looking through, a lot of illuminating material that is very well presented.
by squib
Wed Jun 03, 2020 10:37 am
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The BBM rapid-fire BB gun

This one is just a fun experiment to answer a question that's been nagging me for over 30 years. Demonstration is at the end.



by KannonKing
Tue Aug 04, 2020 11:26 am
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Re: Project something

that's a beauty! Can't wait to see it in action!
by hectmarr
Sat Aug 22, 2020 12:12 pm
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Autonomous pistol .22

My new self-made short gun. It is a hybrid pistol, with a built-in air pump, that operates with 8x and five strokes only. It shoots common pellets, .22, and the firing barrel is 12 micro-ridged, 200mm long. My friend's chrono gave about 650 fps on 4.5 ml of butane. It weighs about 900 grams, and ret...