As it turns out it goes at 320-ish feet per second or 97 meters per second, still pretty solid for a second build, especially when I load it with a dart round or regular spuds still mauling a rotting tree stump 202412%Friday20092544.png However for the incomplete combustion issue, I could just add a...

absolutely beautiful gun right there, like how the extended chamber doesn't mess with the overall look that much to it too, nice job modifying it

Nah, it just there for more or less show but, the muzzle end is chipped when my dad gave to me from his workplace, so I grabbed a spare piece from a box of parts I have and attached it, maybe not all for show then, even seems like it affected how the sparks left my cannons barrel, giving it a little...

Finally got around to plugging in the supposedly right numbers to hgdt, life being life and just being distracted by stuff :) Not entirely sure if the stats are right considering I have disc data on it and just shoot cut potato's from a brass tube in the barrel, despite it clearly just being a regul...

Now to figure out how to get ggdt or whatever the programs name is to get running on my laptop, so I can see the stats of my of cannon, haven't even got it setup yet :| You can download it here Got it to work just last night, just had to run the application as a admin to make it work, and found out...

Thanks for the comments! The cannon performed nicely when I went out back to shoot a large paper cone type of dart and 3 cut russet potatoes, found the optimal mix is filling the cannon 3 times or 30 psi of butane, air pump worked as expected and 'troubleshooted' the misfires :) Now to figure out ho...

Well, this is a bit awkward, tried to post this a really long time ago but regardless its on here, much appreciation and thanks PCGUY! :D Regardless, the current cannons design, New stuff: gas metering and injection, the thing is a fairly small but it works well regardless at 20-40 psi worth of buta...

Hey all, I am building a combustion potato cannon for a school project, a 1.5 inch ABS pipe based cannon (I know, pretty risky seeing how people see ABS with its pros and cons here, also because I made the mistake of not researching beforehand), posting it about it to get feedback and criticism on i...

Hey all, I am building a combustion potato cannon for a school project, a 1.5 inch ABS pipe based cannon (yes I know, pretty risky seeing how people see dmw ABS with its pros and cons here, also because I made the mistake of not researching beforehand), posting about it to get feedback and criticism...

Hey! New to the whole potato or whatever launching shenanigans stuff, I wanna know if anybody happens to know a valve or adapter of sorts that could be fitted onto these types of butane cans (shown below) as I got plenty of these, unless there's some sort of risk for these cans I am not aware of or ...

Man, of course the walk-through video of this awesome af creation had to be unavailable, was gonna take some *heavy* inspiration on it for my second potato cannon, still a sick as hell build!