foreign tuning your water rocket launcher so let's say you have a water rocket launcher if yours looks like this then you might have picked up one of my micro launchers off of eBay and when I send them out they're tuned to shoot you know Sprite bottles but interestingly enough different bottles have different inner diameters like uh I found that grape crush is actually tighter than Sprite and I have some lemonade bottles that are actually even wider but there's a flare on this pipe that makes it so it'll you can fit multiple bottle types but sometimes
you have to adjust the whole launch collar up or down depending on what bottle you're using but I'm going to show you how the locking mechanism basically works and then how to adjust it with this particular bottle so for the Sprite bottle put it on there and that can obviously move up and down quite easily but then eventually it gets to a point where you can't push it down any farther that's because even though on the camera here it doesn't look like there's much of a difference in the tube it looks straight it's actually flared
so that it stops so it's not the heads here that are stopping it it's actually swollen and so the first thing you do you have to push it down to where it hits that flare for a top seat tough seal and that's also the exact same point you want your locking heads to grip around the neck now if then this needs to slide up over them to lock it in place these two zip ties here are actually the spring that hold it up together keeps it bouncing up and down okay so that's the basic chest
and let me show you a couple things that could go wrong or you that you might want to change on it and almost all this can just be adjusted by this particular by loosening this hose clamp right here either with a screwdriver or if you really want to crank it down let's say you're doing High pressures you could do it with an eight millimeter wrench to really tighten oh yeah so one of the first things let's say you pick a different bottle or the type of Pop you drink is different than Sprite and for some
reason the it doesn't grab right here where mine does maybe it grabs higher up like this well that means your heads aren't locking in anymore and you're gonna have to reach up and grab that or let's say yours is way down here and you notice I don't know if this is showing up very well sorry the focus isn't very good but you'll see that the neck is actually Below in the step in this situation it's below the Locking heads that's a big deal because if you put it in this position and lock it and this
is your bottle you lock it in what's going to happen is when pressure starts happening it's going to raise up up up till it does hit the Locking point of the heads and if you're right there at that seal point now you're a couple millimeters above the seal point you'll start getting a leak so what you want to do is you want to achieve it so the heads make contact immediately when you've got your bottle down as tight as you want it to go so to adjust that you'll push the bottle down as tight as
you need to be and then you can loosen this don't have to loosen it all the way but just enough and that'll make it here I'll show you have the entire assembly here the entire assembly can move up or down again loosen it up it makes it so the entire assembly can move up or down we got one string here holding on for so if you have a bottle that likes to clamp right up here you can raise it up to here and then tighten it down if you have a bottle that wants to clamp
way down here you can bring it down to here and clamp it down so depending on the height you can change the adjustment now to make that proper adjustment and one if you ever ran out of like if this is too thick you could honestly just take scissors and cut off another whole inch if you need to go even farther now the proper method for doing that is you take your bottle Sprite bottle you load it here and you keep pushing it and pushing it it's going way past there's heads but you find until you
get that Tight Seal okay so that's the Tight Seal I mean I can pick up the whole thing just with the bottom out but obviously these heads are not where they need to be so you'll loosen the clamp down here and then you can pull them down down down down down down until they are pulling but not past until they are pulling on that neck actually firmly pulling it down so when you have it firmly pulling it down so I'm still holding it down that's when I'll tighten up the clamp and that will hold it
into what we've designated to be the perfect position the position where it meets the tight tight tight seal and also has the heads right in line that way it won't raise up when we start pressurizing now one thing I do want to highlight is that when you do change any of the adjustments you do need to crank this thing down as tight as you can and it depends on your pressure but the higher the pressure you're doing the tighter you're going to want this clamp to be because if it's loose this whole thing could slide
upwards when you're pressurizing and you can get a false launch for for two three four one it could just fling out the whole thing but two we've done this what I'm showing right here is you'll notice that the locking collar is actually even though it's spring-loaded right it's currently riding below the heads and that's a No-No because if it's riding below the heads that means they can actually pull away from the neck and you could actually get a false start so it's actually launch even though it's technically in a position so you can also adjust
the spring height of the collar too so that's what we're going to do next is adjusting the height of this color so you don't have any fall starts because if it's here if you can see the black it's too low it needs to be covering it and the reason is because covering it makes it so the heads can't move away from the neck until it's pulled down okay so what we're going to do now is we're going to adjust the locking collar so there won't be any false starts and that's sort of similar to adjusting
the height but you don't have to loosen it quite as much just a little bit and that'll make it so I'm going to need a little loosen a little bit more so you can raise these I mean honestly you can take them all out you can take the zip ties out you can replace them with new ones you can put four in them since there's actually two extra holes if you wanted extra spring Force but you'll take these and you'll raise them to increase the height at which it's gonna block and so when I'm holding
the Springs up higher I've already set the height of the where I want the heads to be and now just to re-tighten it there now the spring is held in a new place now you'll notice that we've increased the spring Force so it totally goes over the the black locking heads entirely and you can raise that even up even more if you wanted to here I'll make it even tighter back up okay so there you'd have a high spring Force block all right so that's the gist some of the basics of how to adjust one
the point that it's gonna lock so take your bottle force it all the way down until it meets stiff resistance then take your locking heads loosen them up you can position them up and down until they're tight up against the neck right when you meet that same ceiling force and then also readjusting the spring height or the zip tile height so that you're definitely covering the Locking heads you don't want them exposed with that you're set up to run the type of soda pop bottle that you you like the most anyway I hope this helps
and if there's any questions feel free to let me know thanks
