Next time when bending or molding HMW plastics, use HEAT! You can basically mold the entire sheet to fit the hull bottom. Boiling water is great for bending and molding it because of heat distribution, but also a rosebud torch, applied sparingly, and other heating methods can be used. Also, consider cyanocrylate/powder welding for joining pieces together. You will come up with a more robust design altogether.

Can you imagine how effective this sort of boat would be for Search and Rescue operations? Specifically for the searching part. It would be so easy to put it in the bed of a pickup or on a tiny off-road trailer and get it to remove streams with ease.

Not sure if Josh is just hangin for a few. But man, that’s one piece of the puzzle I had no idea you needed. Formidable team

Probably the only time I've ever sat here thinking 'Man... Ethan should PROBABLY have a helmet for that creek..." And I'm not a safety anxious person in the slightest lol

For marking black uhmw, silver sharpies, or white paint pens are your best bet. Also for filling seams and gouges, you can take a small scrap, like a 1/4" wide strip, light the end on fire, and drip it like a candle. Definitely not good to breath in, but that at home plastic base welding.

Honestly didn't expect another jet boat video, but I'm here for it!! YEEEWWWWWWW!!!! Happy Friday boys!

Thank you guys for the mini jet content. Its the reason I found and follow your channel. More please

An old fiberglass boat trick. Use the counter sink bit in reverse on the drill so you don’t accidentally counter sink too much.

That would be a great sport, almost like rally racing, timed run up a streak of shallow river or creek, jumping over sandbars, hopping out as fast as you can to push your boat off of obstacles. Great event to attend, good spectator sport as well, not too expensive as well so low cost of entry.

As a 3rd shifter thank you guys for making videos longer. Love watching you guys regardless 45 mins of premium content

imagine being a fisherman and going all the way up a secluded creek to escape the boats disturbing the fish and this mf just flies by 🤣

Y'all never cease to amaze me on the builds that you do. Not to mention the silly shenanigans. 😂👍

That plastic welds very well. You can take a thin scrap and use it like a welding fill rod with light torch work.

You may have been able to warm the plastic with a rosebud torch and get it to drape over the hull better. Just a thought.

Nice! Fun day on the water with gorgeous scenery all around. That first part with you hiking through the brush along the river in your vest, had a solid Burt Reynold 'Deliverance' theme to it. Was waiting for the banjo music to start up. Good content as always.

The lil heart on the steering wheel really sets it off

Always a good day when the mini jet boat gets time on the water. 💯

I love how you put an ATV muffler in the boat and it became an ATB. All terrain boating is crazy lol

Used to run the rivers in Western WA Steelhead and Salmon fishing when I was younger. My buddy and I built a 20' sled from scratch (built the trailer also). One evening while shooting back up the Snoqualmie River in the dark my buddy made a wrong turn and we ended up in a small portion of the river that cut across a big sweeping bend in the river. I was facing backwards, saw his eyes get big for a second and then he floored it. I looked to my left and right and saw riverbank on both sides, just a few feet from the boat. Turned around to see maybe a 10-12' wide trickle in front of us that was maybe 6-8" deep with a small waterfall over some small rocks at the end where it entered the main channel again. We hit that little waterfall full throttle, jumped the boat back into the main river and kept on trucking! Going 40-60mph up a shallow river in a big boat can be stressful but fun at the same time.

your channel has grown so fast. this is amazing because it allows yall to keep on building such amazing machines. Thank you for all the great content. Stay blessed.

Now you guys need to make another similar boat, as it waaaaay more than doubles the fun! ❤❤❤

Always love the build montages ❤

You guys are an inspiration. The first 30 minutes was great, it showed how you can upgrade your boat without 30k+ of machine tools.

I just learned of you guys last night while watching an interview with Derek Bierri from VGG and I have to tell you I am SO glad I did! The projects you guys take on are really impressive and while I'm working my way through your channel I have to say, this jet boat project is TOP NOTCH. The fabricator (Ethan?) is the real deal and I love how creative he is at figuring out problems. I also love that y'all show your errors as well. Keep up the fantastic work as your skill sets will only improve! Thank you for the entertainment!

As much as I enjoy watching you guys build something I even more enjoy seeing you have fun playing with your awesome toys and yes, it also makes me a bit jealous. 👍

I can see a need for a little foldable oar mounted on the engine cover :)

Awesome guys! Your channel is never short of any entertainment! Dead battery! Quick to the Jackery! Thanks for sharing.

bro is getting really good at acro fpv, love to see it!

It’s so good to see someone with impeccable skills in mechanical engineering and over all excellent fabrication skills

Sick as always! Let's see a full nighttime run!

You guys are very enjoyable to watch. Very respectful bunch of fellas which means you have good percents. Stay safe

you guys brought minis back in the biggest way possible. i gotta say at first i was a skeptic. but you guys are part of my daily life. my day dont seem complete unless ive got some grind hard in it

Love the jet boat videos, always looks like a ton of fun.

Nice to see Sam is doing well. That looks like a blast! Much ❤ Love 🌎🌍🌏⚡️☯️

I love that Josh made it out to the property! Sure hope you showed him the treehouse and everything!

GRIND HARD .... building the best things you never knew you needed!! Just awesome guys! Cant wait to see the new shop up & running!👍 much love from the U.K 🇬🇧👍❤

You guys are always doing something insane and I love it 😂😂 1:36

I could only imagine how much it hurt to hit those rocks in that tiny boat

You all are living the dream!! Love watching the projects and I hope it never ends😁

Not one use of the word premium!!! That makes me so happy!!!

looks like a blast. helmets please.

When you were going up stream over those rocks, I had a grin on my face the whole time. Completely badass! Too bad it ended short but it was probably getting too shallow anyway.

the random drone shots are wild

Tip for you guys. You can use the counter sink tool on plastic with a power drill but the trick is to put it in reverse and let it melt slowly while it heats up

Is there a reason you couldn't heat and bend the plastic to "mold" it to the bottom of the boat rather than cut and bend? I think the size of the piece would make it tricky but not impossible. Either way, looks great!

Ive always wanted to go up bull creek, but always knew it was wayy to shallow for my john boat, awesome to see this! I love that campground

The video I've been waiting for since this build started. That looks like so much fun!!

Powder coat paint the jet boats than a rap doesn’t come off anymore

30:58 if you want to skip over the building phase and want to see it in action

"A complicated compromise of combining ....things" words of a damn wizard.

Granky guy here. If you are not going to wear a helmet, why wear the life vest. Love your chanel. Just want you nummies to stat safe.

Please use helmet next time

First off i need to watch more. Second shout out to Josh. Third i respect the skill with a zip disc and a grinder. And lastly you need scrolling blades and a short throw reciprocating saw. The bug brands all sell them. Inwill end off with, keep doing what your doing, i love it.

Life has been kicking mine lately. Smiled a mile wide when I saw that you had a new upload. Thanks :)

First 30 mins ⬇️

Probably the 1st 360 I've seen, with a BOAT! WELL DONE ETHAN💪

That dog was all like "See what kinda crazy crap I gotta put up with around here! Save me!" LOL Man...loving the micro jet...awesome! keep em coming!!!!

Watching this vid made me realize the utility of a metal hull jetski could be. Your boat but sit on instead of in. What a fun time! Sorry you had to walk it out so far Ethan! Maybe a collapsible paddle? Such a fun toy.

you need to build another small boat (a 2 seater would be nice) for filming and rescue missions like these

Always a good day when Grind Hard posts!

Drone footage is just dope guys

Gosh that thing looks like so much fun!!

When you are cutting sheets of anything with a circular saw it's best to lift the saw blade so that it penetrates the material by less than 1/2". It stops the blade from overheating and makes it much easier to go around curves.

Been the long week waiting for a video to drop. I'm stoked, 2nd cup of coffee n GHPC video to finish morning 😅

I really like these guys they do some of the coolest stuff!! The banshee street bike is my favorite, it's insane!!

Wow. That looks like a ton of fun. That being said, please keep this off my creeks and rivers. Thank you.

It was great to see Sam back! Great video as always.

Bottom came out nice man thst is going to be super Slick in the water

Its always an awesome video when Josh randomly pops up 👍👍

Great video as always guys

Great boat, just a few minor issues! Well it makes a great canoe as well as a boat. Nice to see Sam back on the team.

Dang that looks like a absolute blast guys 42:48

Sickest boat I've ever seen.. and I've seen a lot of them. Wow wish I had one.

Next time use your drone pilot to help you chart the river - with the right contrast and polarizing filter you'll be able to see everything, just cruise 10 feet above the water (make sure to scout your fishing holes this way too, you should be able to see any fish/lost beers).

Awesome job at the add-on. Also, what a great grate. Cheers

Good old school CAD design heck yeah

Awesome video crazy pink wett ride.👍🏻

We had pocket bike racing in the early 2000s, and now we can have Pocket Boat racing in the 2020s! 10/10

So sick! What a ride it is. Outstanding!

That little yellow handled tool you were using is actually used in plastics and vacuum forming to take the sharp edges off of parts after they’re hand routed out of the plastic sheets once formed lol so you’re actually using it for another thing it’s meant to be used for.

Maybe you guys should mount a little flip cage behind the seat? So that it wouldn’t be fatal to flip over some rocks and land on the side/upside down?

Awsome video guys......everyone still had fun tho !.... thanks for sharing this with us

Love the vids guys!!!

Thanks for the videos and keep on building I love it so much

Any 18 volt cordless battery can be easily used as a jumper battery, even for small car engines.

that looks like so much fun.awsome !!

Cant wait for yall to somehow convince Cleetus to try n fit in that thing! Haha

Edwin always expanding the jukebox! I love the Turkish sounding stuff and the 70’s funky vibes

I love all the mini builds, theyre the whole reason i subscribed ❤

The slots are coming along nice on the bottom of the boat 28:01

OUCH!!!!!!!! My back hurts just watching that boulder run, crazy.

Loving the music selections!

That's the sickest most awesome mini jet boat ever built! But then I wouldn't expect anything less from Grind Hard Plumbing Co.!

This brings me so much joy watching large adults jump a tiny boat over a sandbar!!

WHOO! That new muffler makes that thing sound PREMIUM.

FYI if you have a cordless power tool battery you can jump a battery like is what's in your j boat. I've done it before on a Tahoe I had. None of my neighbors at the time had jumper cables. I had a fresh 14.4v cordless impact battery made 2 short cables and it fired right up.

Oscillating tool with a razer blade may be the be the ticket for cutting the material on the bottom of the jet boat for future

Spectacular video Guys 👍👍👍. That was some old skhool James Bond , skipping over land 😂🤪

Will is my spirit animal.

Great videos guys and it is always good to see Sam The Mad Man tearing it up !