S.P.E.C.S the semiauto combustion prototype!!

Boom! The classic potato gun harnesses the combustion of flammable vapor. Show us your combustion spud gun and discuss fuels, ratios, safety, ignition systems, tools, and more.

so whats your opinion?

Cool! looks like Your gun has a good start!
2
25%
Nice! seems like a slow start though.
3
38%
WTF anyone can put foil on a mini this is junk!!!!
3
38%
 
Total votes: 8
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thespeedycicada
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Mon Nov 26, 2007 9:18 pm

Yes! its here!!...well sorta this is a prototype for testing reed movement and they are moving quite a bit! however this version is not meant to vent the chamber and has smaller holes so it would be easier to make it seal.So what do you think?

Yes i know its not a good reed but its just a test/prototype thing ok?

For those who dont know specs is a semi auto combustion.If you want to learn more see my thread in the combustion section.
Attachments
The reed from the inside.
The reed from the inside.
P1010181.JPG (21.96 KiB) Viewed 3731 times
Reed again...
Reed again...
P1010180.JPG (23.29 KiB) Viewed 3731 times
Reed holder (screw:p)
Reed holder (screw:p)
P1010179.JPG (22.41 KiB) Viewed 3731 times
The reed from the outside.
The reed from the outside.
P1010176.JPG (27.62 KiB) Viewed 3731 times
The whole thing justs looks like your average ghetto mini...
The whole thing justs looks like your average ghetto mini...
P1010173.JPG (25.27 KiB) Viewed 3731 times
Last edited by thespeedycicada on Mon Nov 26, 2007 10:06 pm, edited 1 time in total.
current projects: co-axial piston valve.Status DONE!
S.P.E.C.S update mk 1 construction begining in febuary all the maths for it are done plans are drawn up and parts are listed.
NEXT project:auto piston valve.
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Maniac
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Mon Nov 26, 2007 9:21 pm

nice li ttle mini you got is you are going for venting a chamber fan a good one to make is out of a lego propellor and a AA battery
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Zen///
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Mon Nov 26, 2007 9:35 pm

Nice, what do you shoot?

What happened to your scramjet cannon?
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FeLeX
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Mon Nov 26, 2007 10:00 pm

Wait so how is this any different? Sowwy :<
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thespeedycicada
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Mon Nov 26, 2007 10:04 pm

@maniac please read my thread about specs to understand what this is.

@zen/// LOL

@ felex please read my thread about specs in the combustion section.
current projects: co-axial piston valve.Status DONE!
S.P.E.C.S update mk 1 construction begining in febuary all the maths for it are done plans are drawn up and parts are listed.
NEXT project:auto piston valve.
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Zen///
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Mon Nov 26, 2007 10:05 pm

Nice, what do you shoot?

What happened to your scramjet cannon?
@zen/// LOL
What is teh funneh?
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thespeedycicada
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Mon Nov 26, 2007 10:07 pm

Teh funnes es like u remembered et ya knows?

You build the scram cannon im sticking with specs ok?
current projects: co-axial piston valve.Status DONE!
S.P.E.C.S update mk 1 construction begining in febuary all the maths for it are done plans are drawn up and parts are listed.
NEXT project:auto piston valve.
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psycix
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Tue Nov 27, 2007 10:05 am

Cant wait to see more progress! :D
Keep up the good work :)
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thespeedycicada
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Wed Nov 28, 2007 11:27 pm

who voted "WTF anyone can put foil on a mini this is junk" next time read and try to do a little research before you say negative things please.
current projects: co-axial piston valve.Status DONE!
S.P.E.C.S update mk 1 construction begining in febuary all the maths for it are done plans are drawn up and parts are listed.
NEXT project:auto piston valve.
Novacastrian
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Wed Nov 28, 2007 11:37 pm

Seems to be a very nice start, i will pretend that i know what i am looking at and congratulate you on your timely progress.
Good luck speedy

(Alright i know what i am looking at, kinda
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Spitfire
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Thu Dec 06, 2007 12:29 pm

How Does it work???

Its Shiny;)
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Mr. Beaver
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Thu Dec 06, 2007 2:32 pm

Spitfire wrote: Its Shiny;)
I'm a 100% with you man!!

anyway nice looking thing you got there,
looks like a good start :), just about your voting options theyre all kind of against you exept of the GREAT option so you don't need to get all mad about someone voting something you expected noone to vote, i think the "anyone can put some teen foil..." is funny in some kind of way...
- keep it up your doing a nice job can't w8 to see the end of the project.

[EDITEDDDDD]:also how did u connect the foil so smooooooothly??
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