Gas-powered waterjet cutter (follow-up) and other project updates 

UPDATE:1 year and still cranks within the first 2-3 pulls. Probably will buy another when this one finally does bite the dust ru-vid.comUgkx43QMbQqu67IZadu9ou8Sg1BdrunMRNqX . No issues at all. Very happy with it.UPDATE: After 6 months of use and over 70 uses I would still highly recommend this pressure washer. It does vibrate a decent amount but never had it “walk” like others have mentioned. No oil leaks, still seems to run like the day I bought it. Still cranks within 2-3 pulls every time. Very happy with my purchase!Have used it about a dozen times now. Plenty of power, cranks up on 1-2 pulls every time. My only complaint would be I wish it was a little taller to make it easier to walk with it (hits my ankles a lot) and that the two hose connections were a little further apart but it hasn’t caused me any issues. Seems to run a good 1-1/2-2 hrs on a full tank, overall a well built machine and definitely worth the money in my opinion.

I would be very interested to see you show the difference between fresh and used garnet using a scanning electronic microscope.

Tape your glass a few layers and cut through this. It helps keep the glass mostly clear.

The garnet is reusable. 20+ years ago we dried and reused our garnet multiple times to increase cost efficiency. Very few of the particles actually do the cutting per cycle so 20-30 uses was typical for ferrous metals as we could use magnets to remove the metal particles from the slurry. We didn't concern ourselves with particles from materials that didn't rust/corrode in water or water/coolant mix and got up to 50 uses. Other abrasives that don't eat the focus nozzle are another area to increase efficiency.

Hi, nice video. I used to work for a company where I operated a waterjet, in order to destroy the force of the jet the water needed to be about 1m deep, but interesting fact, if there's too much sand in the bucket the jet stream creates a eddy which excludes the water and you end up with a air column where the jet still cuts through the bottom of the bin.

A tip for those who want to prevent the jet from penetrating the container and whatever is under it: Put in a lot of ball bearing balls. The will absorb the energy by the balls starting to rotate! This is used on commersal units meant to be put on top of the table on normal CNC machines.

Nice to see a non-clapped-out Bridgeport milling machine!

I love that your "cnc control" is just clamping the water jet to your mill. Macgyver would be proud.

You have an excellent speaking voice and style. It is a pleasure to listen to you explain things.

The price doesn't really come into factor if you've hooked up to your neighbor's electricity and water supply............. Now the problem is to get them to pay for a CNC machine.

The coolest "life-hack" i've ever seen.

This will be the Best tiles cutting machine on earth Brilliant made thanks

You do some of the very best science experiments on YT. I look forward to many more!

Three videos in a span of two months, you're really spoiling us here.

Just found your project now. As far as the diameter ratio for the oriface and focusing tube, the 3x diameter principle is a rule of thumb but what really matters is the area ratio, which increases by the square of the radius as you go larger. With your (larger than typical) dimensions, I'd imagine you are well within or overshooting the traditional "rule of thumb." Food for thought, but nothing is better than practical experience! Subbed, Cheers.

I love these diy water jets you are experimenting with. Ive been messing around with something kind of similar to this with a cnc pressure washer for very very rough timber milling and joinery. (No aggregate) I kind of gave up on it a while ago, but this makes me want to get into it again. Your vids motivate me

To prevent your catch tank being punched through, use a deeper tank and fill it half way with foam, scrap metal, and water to dissipate the jet. The industrial ones have a 3-4 foot deep catch tank filled with water and steel shot. The shot has to be re-leveled every so often to prevent the jet from pushing it out of the way and punching through the tank bottom.

What in the world, I missed both the original project video and this follow up. Once again; your most interesting (for myself at least) project yet. Genuine _applied science_ at it's best.

You are the best. Really cool project, and nice to hear about the status of the older and future ones.

So cutting a 2mm steel sheet is possible... Wow man. Thank you so much for the video! Great job!

amazing DIY project here! ... and i cant wait for that extremely high pressure chamber!

Neat little intro and nice to see a follow-up of this project.

Fun fact, I downloaded the WardJet feed rate calculator, and your numbers match very nicely to what the calculator spit out. Even tho the calculator said anything below 20K PSI is "out of range" LOL so I think I may move forward and try to make my own soon. Thank for the info!!!!!

If only I weren't doing another really expensive and time-consuming project right now. This is amazing!

Nice new intro :)

Thanks for a great video. Also, I love the fact that you poke into all kinds of interesting areas. I do too.

Thank you for internationalizing your content by adding the metric equivalent values in the brackets

great video, appreciate the follow up on the first one. also your cost breakdown was very informative. great content

Ben''s christmas Jules Verne adventure. always a pleasure to watch. Im building a glass oven next week.

Really looking forward to see the super high pressure project... thanks for the video it was very educational, I really appreciate the fact that one don't have to spend tents of thousands to do water jet projects...

Wow, that's great!

I can’t get enough of your videos. I need to buy a house so I can have a shop and do fun stuff like this.

Looking forward to the upcoming projects.

Love your vids! Keep them coming!

Very nice work thanks for sharing. I love your fabricobbled cnc waterjet.

hey nice hope you have a good new year and thanks for another vid this year

*The only channel that shows and tells you the results in the first minute* even our loved tech ingredients is all disgusting clickbait titles and thumbnails and cliffhangers now, and our favorite practical engineering does the same slimed cliffhanger clickbait stuff. Sorry NileRed, and medhi. Truly a one of a kind channel.well AvE too lmao

Dude, dude, dude... this is bloody sweet!

*Wohooo! Intro is great Ben!:D*

Amazing work as always Ben! :)

That new intro is slick! Loved seeing it on twitter!

I suspect performance would be greatly improved with an accumulator. Just like in the 25k psi machines. This model would be use a much weaker spring inside the chamber of course. This acts as a buffer between the pump and the nozzle, greatly smoothing pulsation and fluctuation in pressures, not to mention helping with the bypass valve issue.

hehe, I also have like 50 projects in backburner, none of them are nearly as fancy as yours though... keep it up Ben always nice to see the process and other maker's approach

New intro is great. Short, Appropriate, Fits well with your channel.

Love your channel. Concise and very informative.

producing easy to watch content, clear and purposeful

So awesome!

How nice to see you uploaded a video.. thanks jack for the intro

You bring great material to RU-vid!

You just built a waterjet that cuts steel for less than 1000. WOW

Never been so excited to see some science.

Excellent review, thank you

great stuff, a project that would go well with this is to attach a multiplying photograph mechanism to the CNC bed. WIll allow bigger cut envelopes than the mill tables envelope.

This is amazing. Greetings from Portugal.

I love this channel! It is awesome that you got this working as well as you did with commodity parts. No slight to you at all, but the final performance pretty much convinces me that a high-pressure pump is probably going to be desirable for all but the lightest applications. I guess I'm also a bit surprised you didn't mention Wazer or comment on their approach, pressures, or performance a little bit for comparison.

comparing the two units. with A having a flow of 1.7 vs 2.8 gpm of B (Petrol motor) the flow is 64.7% more in B. the area of the nozzle for B is 26.6% more than A based on the nozzles of 0.040 vs 0.045 diameters therefore the flow velocities through the two nozzles is 30.14% higher in B therefore the increased energy in B due the square of the velocity is 69% more. which is not insignificant. thanks for the update,

Very cool experiments keep the good work up.

Can the CNC modulate the jet? (I.e. if you want to cut multiple pierced holes in a piece)

one of thE very best channels of its kind !

To protect the glass from sandblasting, place it on a sheet of mdf like 1/8", and cover both sides of the glass with plastic tape thicker the better. Good job btw.

Great video! I would love to see an update using stainless steel at least .048" thickness.

Just a thouht. The electric pressure cleaner you used had an universal motor for power source, which does have a very limited duty cycle and short but merry life. if you can get a used industrial pressure washer ( generally WAP) that has an induction motor as drive, these are rated for continuous duty, perfect for this application. Also they have better pump liners and you just need to replace the pump oil with new high EP agent oil to get it to run nicely. Also generally available used, and looking like they were dragged through a mine by the hose, but so long as the pump itself and the motor are fine well worth it, and the pump assemblies can be rebuilt with a kit as well.

Can't wait to see what 2018 has in store!

I click so fast when I see a new AP video, they're so good!

I thought "homebrew waterjet cutter it's really big deal?" until I looked for factory made cutter... Damn its cost like a car! Great job, it's so impressive!

how have you managed to learn so many things on so many fields of study? You know so much stuff it's almost unbelievable

Thanks for your Information, very good job !

Thanks, lots of good stuff!

If you use a cheap gantry CNC router as the basis for a waterjet, simply turn the entire machine upside down, so the bed is above the gantry, then build a tank and cutting rack below all of that.

Man your videos are really good.

I have one of those round galvanized steel tubs in the shop on a furniture dolly. I set a used radiator over the top and wash large parts like transmissions on it.

Nice work. Enjoyed the video.

You're on another level.

Very impressive to see what you can do for relatively little money and with just a standard pressure washer. I wonder how this would work the the Evolution modular system, then you can use the motor for other applications and make it pay for itself even more.

Love the update thanks you!!!!!❤

Applied Science, this is very awesome. I have had thoughts of doing a laser cutter. Now I would going to use an array of diodes run to fiber optics and then use that to send down to a focusing lens. This way you can add more diodes to get more power. Just a thought

Happy new year, great video

A very common application for these is in a automotive paint shop where they are used for blasting off the accumulated layers of paint on the carriers. No abrasives were necessary, but then again each pump is powered off of up to a 500hp motor. The nozzle rotates, and has a cutting "surface" of about 3 inches in diameter (we just want the paint off, we don't want to actually cut the carriers in two). The cleaning head is attached to a robot, which runs its path to clean the carrier. The head of the cleaner is nearly bulletproof, and the carrier is essentially a large hunk of steel. No better place to learn robot pathing than in the cleaning booth. Even if you whack the carrier with the spray head, no harm done. You're there to take the paint off of the carrier one way or the other... :) And since each carrier is cleaned after 50 - 100 trips through the paint booth, the paint buildup will be made up of many layers of different colors (think red car, green car, blue car...). So the larger pieces of paint blasted off of the carriers were often collected by the guys in the paint shop, and then sanded down and polished to show the various layers in the chip.

Hilarious is I find these pressure washer engine very often for free to $50 for the horizontal shaft engines. I've actually invested in three of the GCH's and GCV's, though for air compressor system testing and washing for now. Maybe eventually for water jet cutting since is on the mind. Amazing... then another not even $100 for a new pressure washer pump where most the washers have the rest of the parts other than required for cutting. Thanks for sharing! For some reason I missed this video.

Love the logo animation

Very cool project! You could use the mpcnc for your CNC frame.

Ha ha ha - what a HOOT! Imagine what a delightful COMFORT it was to sit down to this video just when I did! The washing machine started acting up, seeming to have trouble filling with hot water but warm or cold seemed OK - so I pulled the hot side supply line out and found, as expected, chunks of rust plugging the screen! It's NICE when it's EASY - or so I made the mistake of THINKING!!! Twisted it to final rinse/spin to see if it would work, and it seemed to be - so I went on to something else. Suddenly - the HUGE WHOOOOOSH - as the (front loading) washer popped the door open because it filled WAY TOO HIGH and failed to DRAIN at the very end of the cycle. Water pouring out all over the wood floors, in hallway, adjacent bathroom and the bedrooms - sending me SCRAMBLING for my shop vac and all the towels I could find. WOW! So after I get it all cleaned up and crank the heat up and turn on several fans I sit my tired, drenched booty down and fire up EweToob to recoop a bit. Might as well check YOUR channel, one of my favorite cognitive stimulators, and --- WHAT???? Here's YOUR tale of a similar blow-up of a domestic flood - however did you know there's be some miserable one in need of company like this? Thanks LOADS!!!! I really needed to laugh about it! (before I go try to finger out what happened!) Keep up the excellent work!

Triple A rating, Amazing, Amusing and Awesome.

Looking forward to the pressure chamber experiments and the finished ruby laser

that huge bolt to the side gives me sweaty palms :3

Great work

This is just great!!!

routing the hydraulic pipe may be the biggest challenge. a small cnc may struggle with the forces. If you are prepared to dry and reuse garnet then just find a proper wj shop they will be happy to let you have some (we get through tonnes of the stuff )

Nice project .

id be so happy if that ruby laser got put onto a frame with a handle and trigger, even if its got a whole cabinet of capacitors and tubes stuck to it it'd look badass

LOL Damn. You would be so much fun to have as a neighbor.

I'm going to wear eye protection when you post the ultra high pressure video.

another way to save on the pressure washer would be get a 212cc Predator engine from Harbor Freight, usually about $100 and the pressure washer kit for Predator/Honda/clones off Ebay/Amazon and have a go. thatd probably save about $150. You actually don't need a CNC to cut with waterjet, but someway to mount the cutting nozzle on a sliding tube/rail type frame comes to mind (X or XY like an Etch a Sketch if you like) Thanks for the vid! I totally forgot about waterjet cutting

My work study in college is with an advanced material processing lab, and one of the tools that is at the labs disposal is a water jet cutter(I don't expect to be using it, but it is a really impressive machine)

Thanks for the video. I've been looking for a way to cut tempered glass, now I have some guidelines. Also, on the laser project, are you going to be aiming for the targets? What do you figure the beam divergence will be at that distance? What kind of telescope (type? mirror diameter?) and spectroscope are you going to be using to see the reflection with? Depending on the power and the divergence, you might have a good chance to actually hit the laser reflector targets! Can't wait to see the video on that!

Nice follow up

Love this project.Picked up another used pressure washer to try my own.Was curious why you didn't increase pressure on the gas washer?Also,are there other abrasives,other than Garnet,that my be more cost friendly,and still cut glass?Thanks for sharing!

A VERY concise and informative video! I've never seen your vids until now.You definitely gained a new sub!!!Thank You again for sharing,I'm gonna try this!!!The laser looks awesome,I gotta go look those vids up!!OOps,P.S.,Can the garnet be dried and reclaimed?I wonder what carbide grit would do and if it could be reclaimed?Lastly do you think that a system built on only 2k-2.5kPSI would work,but at a decreased capacity?I have a smaller electric washer I'd like to try,but don't wanna pee in the wind,lol ;-)

Hahaha, thanks for the mental image of you running around with towels and Benny Hill blaring in the background :D Anyway, jokes aside, awesome followup and I really want to build a water jet too. Just needs something else than a gasoline power and I'm not buying a cheapo 100 pesos washer either. Have to gobble something from a proper motor and a proper pump.

More! We need more all your videos are 💯