Post by perky on Oct 17, 2006 19:20:51 GMT
Fist of all I'd like to thank the maker of Garden Balistics.co.nr
You're the only site I could find that provided not only good instructions, but also accompanying picture of the construction, so even I don't have all the parts, I can improvise (which I have done).
Changes:
Since I didn't have the 5mm diameter ABS, I used 4mm stuff, which works well, although I imagine that I'm losing power slightly.
I also found that the spark from an electric lighter wasn't strong enough... that, and the fact that I was to lazy to make a little holder for it!
So I substituted it for a BBQ replacement lighter:
which was fairly simple to attach.
Other that those to points the design was good.
I also found (and am still finding) out a few things about ammo to use and fuel.
I find by far the most successful propellant so far tested is pressurised butane which I bought for a camping stove. I attatched the nozzle from a can of WD40 in order to spray it into the combustion chamber. ;D
Ammo, well, I've tried potatoes, tomatoes, apples, cucumber, and even rice cakes! ;D
I found by far the most successful was not a potato, byt cucumber, possible because its a bit wet, and lubricates the tube on the way down the barrel in preparation to come whizzing out.
Well, that's all I've got for now, still messing around with it.
here are a few more pics:
SRDF, Starch recourse deployment facilitator - shamelessly stolen from another potato cannon site
You're the only site I could find that provided not only good instructions, but also accompanying picture of the construction, so even I don't have all the parts, I can improvise (which I have done).
Changes:
Since I didn't have the 5mm diameter ABS, I used 4mm stuff, which works well, although I imagine that I'm losing power slightly.
I also found that the spark from an electric lighter wasn't strong enough... that, and the fact that I was to lazy to make a little holder for it!
So I substituted it for a BBQ replacement lighter:
which was fairly simple to attach.
Other that those to points the design was good.
I also found (and am still finding) out a few things about ammo to use and fuel.
I find by far the most successful propellant so far tested is pressurised butane which I bought for a camping stove. I attatched the nozzle from a can of WD40 in order to spray it into the combustion chamber. ;D
Ammo, well, I've tried potatoes, tomatoes, apples, cucumber, and even rice cakes! ;D
I found by far the most successful was not a potato, byt cucumber, possible because its a bit wet, and lubricates the tube on the way down the barrel in preparation to come whizzing out.
Well, that's all I've got for now, still messing around with it.
here are a few more pics:
SRDF, Starch recourse deployment facilitator - shamelessly stolen from another potato cannon site
