Hi everyone,
First of all, please apologize some grammatical and other errors, my English is not very good, I am from Czech Republic (small country in middle of Europe). I want show you my second Potato gun, what I made. On this gun I worked almost whole holidays of this summer and I think I succeeded quite 8).
Here are some features:
- weight: 2,3kg
- height: 170cm
- chamber volume: 4l
- barrel diameter: 5cm
- muzzle velocity: about 65m/s
- range: about 200-300m
- electronic trigger
- fan (runs on 18V)
- add laser and collimator (from old toy-gun and its mainly for effect, but functional)
- construction time: about 30hours
- price: about 800czk (its about 45usd)
My second Potato Gun
- Attachments
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- how you can see, its very powerful
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- my "special" ammo from wood
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- before black design
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- the fan from old Pc, runs on 18V
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- Potato Gun only few days after repainting on black design
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- from the view of the shooter
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- on the top of the chamber you can see modified electronic lighter used as a sparker
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- if you want to shoot just pull the trigger on the pistol, there is a built-in microswitch
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- slightly modified photo :)
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Labtecpower
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Looks pretty cool 
I think it would have been better without the tape
how do you fuel it?
I think it would have been better without the tape
how do you fuel it?
Thx, I had to used the tape on chamber, for covering a wires and other thingsLabtecpower wrote:Looks pretty cool
I think it would have been better without the tape
how do you fuel it?
. And as fuel I use only Propan-Butan spray (for filling of lighter) its powerful and quite cheap, but there is problem with dosage (if its the right word 
)- Attachments
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- This is what i mean..
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Labtecpower
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Hehe I use exactly the same gas
You can meter it using this;
If your chamber is 4 liters you need 132 ml of butane.
You can meter it using this;
If your chamber is 4 liters you need 132 ml of butane.
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mattyzip77
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Thats a pretty cool build. I think you may have used a little too much tape though, lol! I like how you incorporated the pistol onto it. Congrats!
Go Bruins!!!!
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jackssmirkingrevenge
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It's not only geographically inept Americans on this forum, some of us have heard of your countryHarys wrote:Czech Republic (small country in middle of Europe).
Nice work, is this stuff legal where you live?
As Labtec suggested, try syringe metering, check the
hectmarr wrote:You have to make many weapons, because this field is long and short life
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Labtecpower
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Further JSR propaganda;
[youtube][/youtube]
[youtube][/youtube]
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jackssmirkingrevenge
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I didn't do it because it's linked to in the wiki entry
hectmarr wrote:You have to make many weapons, because this field is long and short life
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Labtecpower
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I spotted it.I didn't do it because it's linked to in the wiki entry
Now he only has to do one click
I don't know if it's legal in our country, but I am pretty sure, that if cops see the gun, they will confiscate itjackssmirkingrevenge wrote:It's not only geographically inept Americans on this forum, some of us have heard of your countryHarys wrote:Czech Republic (small country in middle of Europe).
Nice work, is this stuff legal where you live?
As Labtec suggested, try syringe metering, check the
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Gun Freak
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The screws only weaken it.
Dunno why people always do that
Dunno why people always do that
OG Anti-Hybrid
One man's trash is a true Spudder's treasure!
Golf Ball Cannon "Superna" ■ M16 BBMG ■ Pengun ■ Hammer Valve Airsoft Sniper ■ High Pressure .22 Coax
Holy Shat!
One man's trash is a true Spudder's treasure!
Golf Ball Cannon "Superna" ■ M16 BBMG ■ Pengun ■ Hammer Valve Airsoft Sniper ■ High Pressure .22 Coax
Holy Shat!
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mattyzip77
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I disagree, if you epoxy the screws when you put them in, there is no real loss of power or stability. However, I wouldnt do it on a pneumatic or a hybrid!!!Gun Freak wrote:The screws only weaken it.
Dunno why people always do that
Go Bruins!!!!
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Gun Freak
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Ok it probably won't blow up but what is the use of drilling holes in the chamber and plugging them with screws? 
OG Anti-Hybrid
One man's trash is a true Spudder's treasure!
Golf Ball Cannon "Superna" ■ M16 BBMG ■ Pengun ■ Hammer Valve Airsoft Sniper ■ High Pressure .22 Coax
Holy Shat!
One man's trash is a true Spudder's treasure!
Golf Ball Cannon "Superna" ■ M16 BBMG ■ Pengun ■ Hammer Valve Airsoft Sniper ■ High Pressure .22 Coax
Holy Shat!