WIP: 1.5" Porting Handheld Piston Hybrid (DAMAGE VIDS)

Harness the power of precision mixtures of pressurized flammable vapor. Safety first! These are advanced potato guns - not for the beginner.
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jackssmirkingrevenge
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Sat Jul 03, 2010 2:48 am

SpudBlaster15 wrote:Should look pretty spectacular on video.
Especially on high speed, have we mentioned how cheap the Casio series are :D
hectmarr wrote:You have to make many weapons, because this field is long and short life
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Sat Jul 03, 2010 3:00 am

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Last edited by SpudBlaster15 on Thu Jul 15, 2021 1:01 am, edited 1 time in total.
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Sun Jul 04, 2010 2:28 am

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Sun Jul 04, 2010 2:58 pm

That thing works great. Awesome power, good job.
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SpudFarm
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Mon Jul 05, 2010 9:49 am

Perfect! :D
I will try marble grapeshot as soon as I can, how did you wad it? I have big trouble getting a good/even pattern with buck shot. The best would be a canister round but I can't make one without a lathe.

Other then that, your valve looks very much like Galfisk's design. Did you look at his drawings? It's a genius and simple piston design.

If I could reach you from Norway I would probably push you towards buying the camera, it's very useful for troubleshooting projectiles and sabots ETC. Other then that they just make damn cool videos.

I probably won't be firing my hybrid to much before I get an American union for it. I really want to bring it up to 20x.


Good job again!
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Mon Jul 05, 2010 2:24 pm

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Last edited by SpudBlaster15 on Thu Jul 15, 2021 12:59 am, edited 1 time in total.
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Mon Jul 05, 2010 5:19 pm

here is the design drawing, I took myself the freedom of uploading it.

For the paper wadding, I have never had much luck with that in my hybrid. Seems like it's just not sturdy enough, and I am also afraid to jam the barrel and denting it since it was quite expensive.

It would be nice to arrange a meeting, three times the brainpower and funds have to bring nice results :P
It could be quite hard with my English though.

Thanks, I am working on getting a union that allows me to get to 20x at the moment. Those over here appears to have been designed to make spudders mad.
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Mon Jul 05, 2010 6:35 pm

I took the liberty of modifying the drawing. A picture is worth 1,000 words.

Modified the 3 way valve to seal the chamber when the meter is filled and seal the inlet when the meter is emptied into the chamber.

Modified the piston for better flow.
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Modified hybrid
Modified hybrid
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Mon Jul 05, 2010 7:20 pm

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Last edited by SpudBlaster15 on Thu Jul 15, 2021 12:58 am, edited 1 time in total.
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SpudFarm
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Mon Jul 05, 2010 7:50 pm

Galfisk has built this hybrid years ago, he just lost interest before he got it working properly. I think he fired it a few times at 3x.

Some kind of plastic can used for salt or something would be perfect if I could find one that fit's my barrel hood enough to use. I have made one that has a diameter to small for the barrel but I think I'll just use tape and a rag behind it.
It would be 500 lead BBs and 10 1/3" steel BB's

For the union, I am talking to Mobile_chernobyl about it. As far as I know McMaster only shipps withing the borders of the US. If I can get him to buy a 2" socket x socket union I could weld in my own pipe nipples to match the threads to my cannon.

Hope this isn't to off topic for you.
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Wed Jul 21, 2010 2:47 pm

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Last edited by SpudBlaster15 on Thu Jul 15, 2021 1:14 am, edited 2 times in total.
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Thu Jul 22, 2010 12:18 pm

You are making good progress on this gun, I can't wait till you are completely done and satisfied with the perfomance!

I would really like to see a semi auto hybrid!
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Thu Jul 22, 2010 1:38 pm

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Last edited by SpudBlaster15 on Thu Jul 15, 2021 1:14 am, edited 1 time in total.
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Thu Jul 22, 2010 10:15 pm

I don't often comment on showcase threads, but this is a really impressive launcher. Probably the best that's been posted here in the time I've been back. What you've achieved is a rare thing indeed:

An innovative, ergonomic, handheld launcher which is energetic enough to be worth the effort of building. As "traditional" launchers go, this is right up there with Clide's GB-semi as one of the best.

The valve is ingenious, and the integration of the components is excellent. I can't suggest any improvements which would be doable with hand tools, although I doubt my own ability to construct even the current version with them. I look forward to seeing the finished version in operation.
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Mon Jul 26, 2010 1:06 pm

I agree very much with DYI. This cannon is the only one that made me consider building a smaller hybrid.
I think it might be built loosely around this design though with manometric metering.

The only improvement I can come up with that will be easily done is manometric metering and a rifle stock to mount it in.

I say it once again, good job!
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