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newbie planning to go all out :-)

Post questions and info about combustion (flammable vapor) powered cannons here. This includes discussion about fuels, ratios, ignition systems, safety, and anything else relevant.
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Unread postAuthor: natas » Sun Apr 15, 2012 3:04 am

guess ill just stick to the plan, and do finetuning when the cannon is up and running.

My calculations are :

chamber: 5700ml x 0.042= 239.4ml
measuringpipe: 239.4ml at 3bar = 79.8ml

so im trying to make my new pipe as close to 80ml as possible :-)


thnx alot for all your inputs :-) it really helps to get feedback for a first timer :-)
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Last edited by natas on Sun Apr 15, 2012 2:21 pm, edited 1 time in total.
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Unread postAuthor: natas » Sun Apr 15, 2012 5:47 am

I got this idea of using a old panasonic drill as handle for my cannon. I get a ok handle, and a rechargeable battery :-)

Making room for the "trigger" micro switch

Image

Blue Leds to indicate when the fan is running

Image

Red Leds to indicate armed trigger

Image

overall wiev of the handle, with the switches on the side for the ignitor and fan.

Image


will come back with more soon :-)
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Unread postAuthor: natas » Sun Apr 15, 2012 2:30 pm

the new fuelmeeter done :-)

Image
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Unread postAuthor: jackssmirkingrevenge » Sun Apr 15, 2012 2:33 pm

coming along very nicely!

should have used one of these though :D
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Unread postAuthor: natas » Sun Apr 15, 2012 3:12 pm

they have been considered :-) i actually have two of those switches laying on my shelf after a NOS project on one of my old cars (red ones, not carbon). but i found them too big for my handle :-)
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Unread postAuthor: natas » Tue Apr 17, 2012 5:29 am

Ha ha ha.. just did a pressure test on the meetering system, the regulator is leaking gass all over, and the two gauges differ 1 bar !!!.. lol..
Better get me a quality ones...
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Unread postAuthor: natas » Sat Apr 21, 2012 1:24 pm

replaced the cheap regulator and gauges with kickass quality regulator, and oilfilled gauges, high-end accurate stuff. did a dry testfire today, and was rewarded with a loud sharp bang with almost no flames :-)... cant wait to get this babe finnished :-).
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Unread postAuthor: natas » Tue Apr 24, 2012 4:59 pm

Ok.. so here is the new gauges and regulator, works like a dream !!
Trigger grip mounted with safety switches, and rechargeable battery :-)

Image


Now I only need to get the brackets for the gas tank done, and the spud is more or less finished :-)


Image


Here im working on the brackets for the gas tank holder, old scool style, CNC version 0.1 beta :-)


Image
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Unread postAuthor: natas » Tue Apr 24, 2012 6:53 pm

BTW : the things i post now... should they rather be in the showcase area ?
or is that just for "finished" spudguns ? :-)

and or is it just irritating that i post progress at all ?


im just asking since im new here..
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Unread postAuthor: warhead052 » Tue Apr 24, 2012 10:37 pm

Nah, these progress reports are pretty cool. Save the showcase for when its complete. Looks really good! Can't wait to see more from you!
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Unread postAuthor: jackssmirkingrevenge » Wed Apr 25, 2012 12:07 am

Very nice! And old machines yay!
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Unread postAuthor: Moonbogg » Wed Apr 25, 2012 2:23 am

Thats awesome. Did you bolt the camlock to the PCV wall?
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Unread postAuthor: jackssmirkingrevenge » Wed Apr 25, 2012 2:29 am

Moonbogg wrote:Did you bolt the camlock to the PCV wall?


I think that's the "standard" attachment from Ultimate Spudgun.
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Unread postAuthor: natas » Wed Apr 25, 2012 3:54 am

Moonbogg, its the utimate spudgun attachment.. if it works, dont fix it:-)

i have done a more or less standard project, and copied other peeps working cannons for my first project, to get a understanding of how things work. guess ill start experimenting with my own sollutions on my next one :-)
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Unread postAuthor: Crna Legija » Wed Apr 25, 2012 4:32 am

lol I wouldn't say that's standard its defiantly one on the best combustions on the files, especially for a first. Great work!
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