Great work dude! Waiting for the testrun👊🏻

@DktheWelder

Жыл бұрын

Me too I hope it moves ok after all that work

Sweet! So happy to see this progressing. Love the work.

Looking Great Dan, I like the servo tester throttle with the gearing, nice touch :), I've never used the crimp connectors for wires, I've had to use plenty of solder and some 8mm bullet connectors as they can get hot quick, I use a little grease as well in the bullets as it reduces micro-arching and and the white scaly stuff from building up over time, any grease will do I think, you've probably already thought of this but it's best test in fresh water first just to identify any leaks, Mark

@DktheWelder

Жыл бұрын

Thanks a lot mark, you have actually been the inspiration behind this . I will try the grease I think I can see it has been arcing a little bit . Hopefully get a test going soon 👍

you've nailed it with this one. so much power in those little brushless motors, can't wait to see it rip

@DktheWelder

Жыл бұрын

I hope so I am drawing up some more aggressive impellers at the moment

Yea boi thats looking trucking awesome!! glad ta see ya carryin on with the jet boat idea and it definatly looks like its gonna work! can't wait for the next vid!

@DktheWelder

Жыл бұрын

Hopefully testing it soon ! Feels like it has some power

Awesome stuff, love the evolution of this project. Looking forward to seeing it running 👍

@DktheWelder

Жыл бұрын

You and me both!

Love your videos, it will be very fun to see how the boat performs :)

@DktheWelder

Жыл бұрын

I hope it works well haha

Oh man! You gotta get this going...I love this big time!....I have been waiting for a video where on could follow the build!...can’t wait for the first run!..new sub here!

@DktheWelder

Жыл бұрын

Yeah I have been working on it trying to get a good test shouldn’t be far away 👍

@lureup9973

Жыл бұрын

@@DktheWelder glued to the notification bell😎👍

The croc cam

@DktheWelder

Жыл бұрын

Haha

@gusgibbson4290

Жыл бұрын

@@DktheWelderlol

EXCELLENT CONTENT. Jealous of those motors.

@DktheWelder

Жыл бұрын

I know I am lucky to have them ! Heaps of power that even sound powerful haha

This is my lucky day! Great vid😀

@DktheWelder

Жыл бұрын

Thanks 👍

Nice work!

@DktheWelder

Жыл бұрын

Thanks!

Ya never disappoint! I see the video and think What is that crazy kiwi up to now???

@DktheWelder

Жыл бұрын

Haha always got some strange machine in the build

This should go well....good job.....

@DktheWelder

Жыл бұрын

Thanks I hope so

Amazing Prototype . I would have put the motors and batteries right at the front of the Jetboat. and have a very long inexpensive shaft feeding rotation power to the jet which "has" to be at the back. This has the huge advantage that should a leak occur then the jet will flood but the expensive electric motor will be far away at the front and a few inches higher than the flooding water. It has a second advantage that the added weight at the front will help in getting the Jetboat onto the plane.

@DktheWelder

Жыл бұрын

That is a good idea! I have been having leaking problems at the moment actually

Great vid Dan Half Cut Garage is building a 6 foot Mini Jet You guys are amazing!

@DktheWelder

Жыл бұрын

O cool like one of those jet stream kit set boats like grind hard plumbing built? Thanks

@brianladouceur6733

Жыл бұрын

Yes

You are certainly a talented and capable fabricator that's for sure! I envy your considerable skills. Just going by that test run and other electric powered things I have seen, I wonder how much quieter these electric motors are over petrol powered? With a modified exhaust and rubber mounts, petrol engines can be pretty quiet. That said, the electric is very interesting and I look forward to seeing it run!

@DktheWelder

Жыл бұрын

I guess they aren’t that quiet, a great thing it how light it is . But I’m only going to get about 10mins at full power haha

With the diameter of those pump units, I would suggest a 2stage pump setup to really take advantage of the motors output. Absolutely awesome build

@DktheWelder

Жыл бұрын

60mm yes I might need to go two stage!

@NN1Ckl.

Жыл бұрын

@@DktheWelder 2 stage will definitely get you where you want to be, unless you want to try dual centrifugal pump setups(higher pressure from single stage) like they use on the outboard jet units lol though I’d imagine centrifugal would be more difficult to print and get worked out lol

@NN1Ckl.

Жыл бұрын

@@DktheWelder I would also suggest, just shits and giggles, an MP100 brushless motor! (I believe it’s 23kw max, somewhat cheaper version of the TP power TP100 motor).

Make a short video or a youtube short where you test it, we need to see its power!!! Nice build as well 👍🏼 You could drill a hole in the jet drives and connect a rubber hose from it to the esc to cool it.

@DktheWelder

Жыл бұрын

I think I could put a water cooling block on the esc that would probably work

IMPRESSIVE POWER

@DktheWelder

Жыл бұрын

I hope it moves along ok

Awesome.

@peter360adventures9

Жыл бұрын

I was following you from another device. I have watched all of your work and it's great that your still going.

i like what you are doing . Mr Hamilton Jet Boat,

@DktheWelder

Жыл бұрын

Thanks hope it works

You could keep the water out of your "sealed" box by pressurising it with a small 12v compressor. I heard people used to do this with 4wd winches and diffs. Only need a few psi.

@DktheWelder

Жыл бұрын

That’s a good idea because a sealed box is harder than it sounds haha

If this needs more grunt once you get this in the water, consider setting up a step up gear box in between motor/driveshaft!

@DktheWelder

Жыл бұрын

I have made 2 more aggressive impellers , also I can make it a 2 stage which would be pretty cool

hole saw cam ... only on DK Welder!

@DktheWelder

Жыл бұрын

Haha👍

looks awesome . 20,000 watts is 27hp , this thing should rip

@DktheWelder

Жыл бұрын

I hope so , be a matter of getting the impeller pitch correct and it should be pretty good!

most brushless motors are ok to run completely submerged at least in fresh water... saltwater is probably not great for an extended period of time but they should survive short exposure. its the ESCs that you really need to keep dry!

@DktheWelder

Жыл бұрын

I thought that was the case. I want to put the controllers against the hull to keep them cool just have to make sure they are sealed from the water

That's Just CHOICE BRO !!

@DktheWelder

Жыл бұрын

Thanks👍

Very cool build! Can you share what Motors are used. They look very small for 10kW. If they are 10kW then it doesn’t seem like you’ll get much battery life - just interested in how your are thinking about that.

@DktheWelder

Жыл бұрын

Ca80 or something like that , it does seem a lot for such small motors. I think the battery will only last about 10 minutes haha

My intuition says you'd get more reaction force from having the nozzles submerged in water so they have more mass to push against. Like you get more force from swimming in water than air.

@DktheWelder

Жыл бұрын

There’s a guy on KZread that did a test in it because people always have that theory. All jet boats have there nozzle out of the water when planning

@kyoteecasey

Жыл бұрын

@@DktheWelder Interesting! Great progress on a great project : )

Lookin good,u should do about 60km/h but u have to do water cooling for the ESCs or u will burn them out fast

@DktheWelder

Жыл бұрын

Can you make them water cooled?

@Trent28888

Жыл бұрын

@@DktheWelder u can buy them with water cooling jackets on it but u coukd always get some copper tube and bend it so it goes through the fins on the heatsink,check out water cooled ESC for RC boats on google and u might find something,if ya dont cool them even in small RC boats they burn out due t no air flow

Looks good! Why not have the steering capstan right at the steering wheel, then you don't have a steel rod pointing at you when you hit a sandbank. Also, why not get some heatshrink tubing for the wiring, its much more professional and seals better than electrical tape. I believe you have Jaycar in NZ, they have it.

@DktheWelder

Жыл бұрын

Yeah good thinking I sort of made the steering like a go kart I guess . I should try doing some heat shrink, this wiring stuff it new to me I should try a bit harder haha

you might want to watercool those motors and controllers, they will get very hot

@DktheWelder

Жыл бұрын

Water cooled would be ideal !

48V serve3r rack batteries!

Look foward to seeing it run, might want to measure your amps before going more aggressive on the Impellers. You don't want those ESC's anywhere near 200amps and you will need to cool them. 12cell ESC under load more like a 8kw peak considering voltage sag. Are you going to cool those outrunners? That battery is really going to suffer trying to supply enough current. Even the "30amp" cells are not really 30amp with any type of decent cycle life. Endless sphere has some good discussion on cells.

@DktheWelder

Жыл бұрын

Yeah I think there will be problems I’m getting comments similar to yours, I have fans on the motors now and made more aggressive impellers but they don’t sound that loaded up I might best to run it a bit under loaded for awhile to make sure nothing melts

Bro welding in FL is the same way, its so hot and then ur welding and it's even hotter. Idk what's worse for sunburn the arc or the actual sun lol

@DktheWelder

Жыл бұрын

I know you have to wear a shirt and just sweat it out I think

Hi Im into chainsaws,Hence why your video poped up on my feed.Have you still got the 088 for the boat?or did the chainsaw cook itself?

@DktheWelder

Жыл бұрын

Yeah I still have it , it runs fine still but pretty hard to start

Make sure you watch them capacitors they like to split. They are very important they help deliver power to the speed controller.

@DktheWelder

Жыл бұрын

Will do!

@lureup9973

Жыл бұрын

Can you explain “they like to split” please...

@ronniewilliz153

Жыл бұрын

@@lureup9973 I'm not being a smart ass but do you know what they are for and what they do ?

@ronniewilliz153

Жыл бұрын

@@lureup9973 idk ur name is lire you sure ur not trying to lure me in to make me look like idk what I'm talking about but cheap comparators like to split tho cus they hold energy to help deliver it to the power source more efficient.

@ronniewilliz153

Жыл бұрын

I could be wrong but I don't think I'm far off

DK, do you sell these? and if so can you make one that i can attach to a jon boat with a particular shaft size

@DktheWelder

Жыл бұрын

I sell the files for the 3d printing but not the jet unit, I think they would be too small for a Jon boat . There is a bigger one I made for a jet board that would be better the print files are free on my CG trader link in description but need a fair bit of power to run it . You are better off to use a JetSki motor and unit

If you don't mind me asking, what do you do for a living? just wonder what job lets me into a workshop like that.

@DktheWelder

Жыл бұрын

I’m a welder, I’m kinda a fitter welder do a bit of everything

How to buy that one propeller assembly only need

@DktheWelder

Жыл бұрын

I only sell the drawings, on my CG trader page link in the description there are some I think there are some free ones as well

Where did you get the motors from and controllers from?

@DktheWelder

Жыл бұрын

A subscriber gave them to me ! Lucky aye

That's one way to water the grass

Hey Dan, what motors and controllers are those?

@DktheWelder

Жыл бұрын

I think the details are in this video, I can’t remember what they are kzread.info/dash/bejne/Zqth086uqpzPlLQ.html

Do you have the drawings for the hull?

@DktheWelder

Жыл бұрын

I don’t sorry I just kinda made it , put might be making another one soon with plans

how many MM is the jet thruster's propeller?

@DktheWelder

Жыл бұрын

60mm

How quick do you think it's going to be? The only thing I dislike about 3D printing is waiting. Someone needs to come up with a faster method of 3D printing

@DktheWelder

Жыл бұрын

I would be super happy with 40 Kph but might be faster , I try plan my 3d printing to run at night so it’s not costing time but it is annoyingly slow

can u add the reverse scoop to cg trader please ?

@DktheWelder

Жыл бұрын

I haven’t tested it yet I was going to put it on for $2 but I might just put it up for free

@mikepeaslee5540

Жыл бұрын

@@DktheWelder man id love to print one up 2$ or free all good with me , love what ya do and my kid does to , she's looking forward to driving her jet boat I'm building for her this summer.

What about a jet body board with handle bars for right and left turn poking out each side and a throttle on the bars. 🤷‍♀ Boats looking good though.

@DktheWelder

Жыл бұрын

There is already something like that made , they are pretty fast

Hey dk would you be intrested in helping to organize a meet for custom builds that dont really fit into a group like the trike. Would also be a good way to connect with to community

@DktheWelder

Жыл бұрын

That does sound pretty cool but not really into meets and stuff, go you have a Facebook page or something?

@zach_munce

Жыл бұрын

@@DktheWelder im in a couple pages on fb were trying to sort something out

Does Liam the battery builder sell these battery cells online?

@luastoned

Жыл бұрын

I sure hope not, those welds look way too cold..

@DktheWelder

Жыл бұрын

I don’t think so , sending batteries from New Zealand is tricky. I can ask him

Nice one all of inventors all the time lack of work space ☺️

@DktheWelder

Жыл бұрын

Yes lack of space, time , and money haha

Please sket diagram rangkaian listrik nya

I have a request it doesn't really have anything to do with what you have made so far could you try make a pulse jet

@DktheWelder

Жыл бұрын

There’s a guy I talk to a bit here in New Zealand he made a cool one kzread.info/dash/bejne/dGZqupqHpcqoh7A.html

dont forget to water cool the motors or over heat 5 to 8 mins in ... ok

@DktheWelder

Жыл бұрын

The hole outer casings spin they are big drone motors can’t put water jackets on them , I am putting fans on them

20kw wont be enough...

@DktheWelder

Жыл бұрын

I hope it is those jet units are thirsty for power

@cloudpandarism2627

Жыл бұрын

​@@DktheWelder i hope so too. but i have serious doubts mate. you also only using 48 volts. to get 20kw out of those jets you need to reach 500 amps and that tiny 18650 pack with thin wires wont have that. you either burn the battery in very short time oooor you wont even get close to 10kw due to voltage sag which is more likely. i think you will get it to run for a while but only at low power. 20000mah lipo packs would be the way to go here because they can provide that insane amount of amps. maybe put the boat in the pool again. throw a clamping amp-meter on main plus and see how much amps you even get from that battery.

Wheels logitech g920

Well at least he didn't use batteries because "it's better for the environment".

@DktheWelder

Жыл бұрын

I just watched a documentary on how bad the cobalt mines are! I think evs aren’t green at all

@printingwithlue4310

Жыл бұрын

@@DktheWelder check out the salt batteries that are being designed. I saw something the other day saying they may replace the current lithium and cobalt battery setups.

@sharonbraselton4302

Жыл бұрын

wroñg théré grén chéf diñt yse m8ng cibal 3d oreçt ir nàg8ç

Warm is ok. Rough rule of thumb, The windings can run at 120c So the outside shouldn’t get past 80c ever, too hot to touch About 60c outside is good, touch for 3sec without burning fingers. 40c is not loaded enough. hold unlimited hot.

@DktheWelder

Жыл бұрын

Ok thanks, I’m going to duct the air so it runs past the controllers too and I will print the fans a bit differently too I think. Do you think the motors sounded loaded enough?

@brucebaxter6923

Жыл бұрын

@@DktheWelder Nope. The motors were barely loaded. Oh. Watch the temperature of the battery cable too.