hi i am pretty new here and i would like to interduce myself i am monboy i am 11 and i got sarted in water rockets quite a while ago but they were just little cheap one like a normal pop bottle with a needle inflator through a cork pluged into the end the i would pump it up with a bike pump they were fun but did not go very high
then i got a little more complex and made a little device that holds it down onto the cork that one was much more fun and it went higher than the other ones
and now i have built a "good" launcher it is a pvc pipe and it uses cable ties and a lock colar to hold it down onto a pice of pvc pipe with a buldge in it to make it tighter seal i am trying to think of a way to make some easy guild rails and i can't use metal for them and these rocket go very high and right now i am trying to make some bigger rockets with spliced bottles
and some of my other hobbies and rc cars,rc airplanes,rockets (water and "real")reading building TV video game ect
thank you for reading this post
hello everone
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Re: hello everone
Welcome to the forum! It's nice to see you progressing through increasingly advanced rockets and launchers. Helping people learn and achieve more goals is something we all love to do here.
My first suggestion to you would be to add an O-ring to your launcher to seal the bottles. You will get much higher flights with way, plus you can use the pipe inside as a launch tube and you won't need to build guide rails on your launcher.
Nice to meet you!
My first suggestion to you would be to add an O-ring to your launcher to seal the bottles. You will get much higher flights with way, plus you can use the pipe inside as a launch tube and you won't need to build guide rails on your launcher.
Nice to meet you!
Spaceman Spiff
"What goes up, must come down"
"What goes up, must come down"
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Re: hello everone
ok thanks for the launch rod idea i might make it so that i can put in different lenths of wooden dowl and i also think that i will plug the hole on the end of the pvc pipe and then drill holes angled down so that not as much water can get in. what sized O-ring should i use?
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Re: hello everone
there is another way without using an "O" ring or the pipe expansion or even teflon tape , the 20mm pipe has a coupler for joining two pipes together , if you file the centre stop out of this you can slide it down the pipe and glue it in position....now the trick is that it is fractionaly too big to fit in the bottle , so take a piece of sandpaper and slowly sand it into a slight taper, i insert about 12mm-15mm inside the bottle and then glue a piece of cut and split 25mm pipe at the 15mm point , (to stop the bottle jamming on the coupler) this makes an excellent seal ( between 7 and 8 bar before the rocket self launches without being held in place with the cable ties ) i have pressure tested the joint to 13 bar with no leaks
i will try and post some images in the launcher forum in the next few days
i will try and post some images in the launcher forum in the next few days
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Re: hello everone
with my rocket launcher the pipe can only handle 40 psi and i only use a old half broken bike pump that i found and fixed i think that i will add a gauge to tell me the psi
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Re: hello everone
Hi Monboy and welcome to the forum.monboy10 wrote:hi i am pretty new here and i would like to interduce myself i am monboy i am 11 and i got sarted in water rockets quite a while ago but they were just little cheap one like a normal pop bottle with a needle inflator through a cork pluged into the end the i would pump it up with a bike pump they were fun but did not go very high
then i got a little more complex and made a little device that holds it down onto the cork that one was much more fun and it went higher than the other ones
and now i have built a "good" launcher it is a pvc pipe and it uses cable ties and a lock colar to hold it down onto a pice of pvc pipe with a buldge in it to make it tighter seal i am trying to think of a way to make some easy guild rails and i can't use metal for them and these rocket go very high and right now i am trying to make some bigger rockets with spliced bottles
and some of my other hobbies and rc cars,rc airplanes,rockets (water and "real")reading building TV video game ect
thank you for reading this post
D. Reno, Team Leader.
Team Pump It!
Team Pump It!
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Re: hello everone
thank you i am glad to be here.
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