homemade water jet drive

It can’t cut at the speeds of a commercial machine, but for hobby and small shop use, it might just be the ticket. note: an impellor is a propellor that turns inside a housing. If the holes in the boat hull line up it can simply be sat in place and silicone used to seal all edges, inside the boat, round the nozzle at the back of the boat and around the water inlet on the bottom. DIY: Make your own water jet cutter for less than $200. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies.

you could technically find an old, scrapped jet ski and yank out it's drive (a shaft attached to a turbine and intake. Hello.

on Introduction. r/c jetboats are quite rare and always turn heads when you go out for a spin,  this one even more so because of the homemade jetdrive. It is mandatory to procure user consent prior to running these cookies on your website. below are the links to some videos i made.http://youtu.be/Wu_YrjGjVxEhttp://youtu.be/QZbnTlV_JWI. The impellor i used was bought from a hobby shop and was larger than 16mm, this is so that i can carefully trim it to fit the inside of the jet housing. Even a super-low-end cutter, like the Wazer, crowdfunded on Kickstarter a few years ago, sells for $6,0000. Be wary of simply adapting an old plasma table, because it probably will not have the protection needed.

Creating some sort of containment for the whole unit would make sense, too, if you’re planning to use the device for real, day-to-day work. In the video, you see him cutting through 1/16″ aluminum (at ~2″/min with .4 lbs/min of abrasive @3200psi), 1/8″ aluminum (at about 1/2 the cutting speed, abrasive and psi values the same), 3/8″ hardwood, styrofoam (in water-only/no abrasive mode), and bread (yes, bread). I'd go electric rather than muck around with a gas engine. I also decided to add an aerial tube for better transmission, it is simply glued into a small hole in the windshield and the aerial from the reciever is slid inside. And transferring power from your engine to the turbo is probably going to be difficult; it's made to be driven by compressed air. He is currently a contributor to Boing Boing, Wink Books, and Wink Fun. These cookies do not store any personal information. the completed jet drive can … That should be easy to connect to. This website uses cookies to improve your experience while you navigate through the website.

The jet housing is then set in the cradle and a drill press used to make the hole. (A stator is used to stabilise the spinning motion of the water as it leaves the prop and to direct it in a straight line, in this r/c boat it only needs to be a single vane type) The nozzle is made from the same 20mm aluminium rod as the main jet housing. We use cookies to optimally design and continuously improve our websites for you, as well as to display content in line with your interests. These cookies will be stored in your browser only with your consent. Use enclosed bellows and non-rusting components wherever you can. I'd suggest you rig the engine to the pump, output to a tank & time it. He accomplishes this using a rig he put together for only a few hundred dollars. Dozens of projects in every issue covering Robots, Drones, 3D printing, craft and more, Tips and skill-building tutorials with inspiration from the leaders of the maker community. shaft and coated in epoxy resin. A turbocharger will probably work, but I seriously doubt if it will be very efficient as it was designed to pump air while turning tens of thousands of RPM - not water at a few thousand RPM. If you’ve never seen Applied Science, Ben Krasnow’s YouTube channel, you need to go subscribe to it now. The hull is shrink formed with acrylic plastic.

L. . The motor, which on this particular boat is a 5800kv brushless motor, is simply hotglued onto mounting plate of the jet housing and a short spring from a brocken pen is slotted over both the motor shaft and the prop. He got most of these parts at AccuStream (a waterjet parts supplier) and McMaster-Carr. Just be sure it is well-protected from dust, grit, and moisture, and that the operator of the machine is safely protected. the glue will stick to the jet housing but not to the prop. It is used to speed up the water coming from the back of the boat, like when you put your finger over the end of a garden hose. You can opt out by clicking the configure button below. We detected that you have javascript disabled. Another method (which can be seen in the picture) of protecting the motor is to add tissue paper around the jet drive, this is so that if water makes its way through the prop. the completed jet drive can now be installed into the boat. The requirements for a waterjet impellor normally include no gaps between the blades, a fine pitch and very close tolerences between the tips of the blades and the inside of the jethousing. to the main jet housing a stator, impellor, nozzle, water seal, steering nozzle and plastic seat is added. Making the PVC Drill

The top piece can be a simple flat cover or you can make a windshield as this looks more realistic.

For the abrasives hopper, after doing research into commercial hoppers, he realized that they’re basically just a gravity-fed tub with a hole in the bottom (and a means of adjusting the amount of abrasive). No holes in the lid are neccesary with this option, all wires can be kept inside.

The stator housing, which can be seen in the exploded view in the previous step, can be made from either aluminium or PVC plastic, I used plastic as this was better for glueing the stator vane onto. The water cutter he creates is mainly comprised of the pressure washer (which he had to make a few simple modifications to), a water orifice, mixing tube (nozzle), cutting head, high pressure fittings, a pressure gauge, and a valve. He got most of these parts at AccuStream (a waterjet parts supplier) and McMaster-Carr. Participated in the Remote Control Contest. A small hole is drilled into the transom of the boat to take a steering linkage made from a paperclip which connects the servo to the steering nozzle, this linkage also has a balloon neck attached to it, this is to stop water from entering through the hole while still allowing the linkage to move freely. Then a bead of silicone is run all the wa around the edge of the lid and on the battery and esc wires to permenantly seal everything inside. It is then setup in the metal lathe and a 16mm hole is drilled into one side of it, 10mm deep, and then a 2mm hole is drilled all the way through for the prop. Does anyone know if the intake half of automotive turbocharger is gonna for pumping water? All parts are mounted on trays as protection against water if i happened to leak in. All these items were found in an unused r/c car except for the lightweight 2cell lipo battery which is not shown in the pictures. I used a piece of acrylic plastic bent into an L shape with a large oval hole in one side and 3 small holes in the other. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. The site requires javascript to be enabled for the best user experience. The water cutter he creates is mainly comprised of the pressure washer (which he had to make a few simple modifications to), a water orifice, mixing tube (nozzle), cutting head, high pressure fittings, a pressure gauge, and a valve. The battery can still be charged and the boat turned on and off easily. Because we don't wanna get into business of making our own gears we are looking for ways to implement water jet system. - With our Jet 64 for sure!

To start with, the 20mm aluminium rod is cut to a 40mm length, this will be the main jet housing. The forums are retiring in 2021 and are now closed for new topics and comments. shaft with hot glue. The first thing I would investigate is using the pump from a wrecked PWC.

Please try again. shaft in vaseline (petroleum jelly) and then after inserting the prop.

No chance, unless you can spin it very, very quickly. He is the author or editor of over a dozen books on technology, DIY, and geek culture. Making the X-Y positioning system to position the cutting head is the easy part. Discussions. shaft and coated in epoxy resin. shaft into the jet housing cake the area around the prop. Gareth Branwyn is a freelance writer and the former Editorial Director of Maker Media.

All rights reserved. Professional water well drillers won’t stop there, as they want to make more money and they charge by the foot. Besides, generally speaking, deeper water will be better quality water.

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