Nice! Im sure the sound is really awesome, have you tied using a muzzle brake just for looks? once i tried to do an oxy-hydrogen spudgun with a 600ml soda bottle just for fun, i used a 1/2 PVC pipe as barrel and it shooted airsof bbs like a shotgun, i never measured the speed but it did good dents i...

Impressive! 25mm ball bearing weighting 63gr at 240m/s is 1790J :shock: also that muzzle flash is really cool. do you have some damage pictures? it would be nice to see some carnage, bet you could launch a frozen spud at supersonic speeds. I read in your other post that you are using KOH as electrol...

OMFG! The prices are ludicrous its almost an insult! a 7ft barrel for $100, a spudgun with a lame ball valve a Chinese compressor and a mold for the bait $999 and they patented it :evil: . Good thing you have brains and decided to learn and make your own, a combustion will be the easiest but probabl...

Hi everyone just wondering if any of you have some info on the burn rate of hydrogen oxygen mix (as produced from water), it is supposed to be 1000 times petrol ? Well 1000 times the flame speed of a petrol-oxygen sounds like a detonation, hydrogen has a really fast burning rate, under certain cond...

Yet to meet someone who listens to what I primarily listen to. Discovered Aphex Twin several years ago, been listening ever since. Well i do like Aphex Twin these are some my favorite songs of him. :D [youtube]https://youtu.be/0pQgsCerz8s[/youtube] [youtube]https://youtu.be/VeAOp9B7OSU[/youtube] I ...

I read is not allowed to post "endless topic treads" so i think this theme will compensate and be more useful for everyone instead of asking what music you like. After some time searching papers regarding research, patents or anything related to electric launchers i collected some papers, and knowin...

Well edit again as i need to be fair and i will take my punishment for creating such tread. What music do you like to listen? i've seen a preference for rock here on SP. These are some of my favorite songs [youtube]https://youtu.be/kOrSOIw_aAQ[/youtube] [youtube]https://youtu.be/nDWZKrJwPEc[/youtube...

This occurred me but i don't know if it works i'm gonna test this right now. If the anodizing isn't too thick, you could prepare a weak NaCl solution and do some electrolysis, just connect the aluminium to be de-anodized to the anode, and a stainless steel electrode to the cathode and use 12 to 30v ...

I think the easiest to do is to build a light tight enclosure to contain the chrony something like this https://drscdn.500px.org/photo/114446721/m%3D900/9c25bdfe7043ccdfb34a7aabc12063fc I have read a little about the risks of DDT on gaseous mixtures, but still i think the dangerousness of hydrogen i...

Your pre- machine tools ETG certainly works better than mine did! The craters have different aspect ratios because you were using heavier BBs, but I'd say this works just as well as my last pure ET gun did (before I introduced the aluminum fuel). I also suspect that the finer grade of aluminum powd...

Mainly just build materials and drawings/CAD of the "plasma chamber" as you call it. Vimeo seems good. I stopped using YouTube recently due to the growing acceptance of HTML5 video (webm) and the ability to host video on my own website without overly complicated non-free solutions like jwplayer/flo...

Well, thanks for the compliments!, I consider i m not close from being at the level of Larda or DYI yet , but i can certainly say i am a member of the 1km/s club :D , i already have some work done in my hybrid i think it will help to fix the projectile size issue :twisted: What details you would lik...

Thanks, I really appreciate that you have interest in my ETG *fangirls*, i made a post about it http://www.spudfiles.com/hybrid-cannons/topic26229.html#p379639 . It is very ghetto so it will be nothing compared to what you make. Yes its true i've also seen very few people is interested in building l...

Or anyone intrested in electrothermal launchers. As i said i really appreciate that you have interest in my ETG. It is very ghetto, reason i didnt posted about it before but now that the god of ETG's showed interest in my humble gadget here it is. Edit: Video link added--> https://vimeo.com/13297580...

Is good to see several of us heard our nature call to attend the cause hehe, i've seen several people saying that they have come back, Its a pleasure to see an old member coming back i give you the welcome, i don't know how much time you have been out but seeing you were surprised by the update ther...