Most Complicated 3D PRINTED Water Pump I Have Ever Made - 3D Printed Lobe Pump
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- Опубліковано 18 тра 2022
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DOWNLOAD THIS MODEL FOR FREE: thangs.com/designer/Let's%20P...
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Support me on PATREON: / letsprintyt
U also need for building the lobe pump:
61806rs bearings: s.click.aliexpress.com/e/_DcQ...
Set screws M6: s.click.aliexpress.com/e/_DCX...
Set screw assortment: s.click.aliexpress.com/e/_Dmy...
Coupler: s.click.aliexpress.com/e/_Dcv...
775 DC motor: s.click.aliexpress.com/e/_DDx...
895 DC motor: s.click.aliexpress.com/e/_DDU...
The RESIN I recommend: ali.ski/QxygQm
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MY PATREON PAGE: / letsprintyt
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Instagram: / letsprintyoutube
________________________________________________________________ - Наука та технологія
![Testing Different Water Pump IMPELLERS - Which One PERFORMS THE BEST? [REMAKE]](http://i.ytimg.com/vi/0nPJvRR5HLs/mqdefault.jpg)
Free .step files for this model are now also available: thangs.com/designer/Let's%20Print/3d-model/Lobe%20Pump%20for%203D%20Printing-68000?manualModelView=true
Congrats for 100k.
Would you be willing to also post your .f3d file?
Do you know what's better for gears than ABS? Nylon! It even self lubricates!!!
I kinda want to see the inside of that hardware store! Like especially the fasteners section.
What Programm do you use to construct and 3d printing,?
You can say what you want about resin printing, but those clear solid prints look really fancy, these ones looked like cherry candy
resin printing can be much more durable and accurate than fdm, along with being faster, but you gotta do some stuff after it prints
@@veryrealperson3694 Thats interesting. I keep hearing durability is one of the downsides of resin compared to fdm.
@@haraldhimmel5687 depends entirely on the resin you are using, most are for detail rather than durability, however some other resins are really strong, just as strong if not stronger than fdm, Zack Freedman used a 5 to 1 mix of tenacious and blu resin from siraya tech, (as in like more blu than tenacious), and it produced some really strong, and accurate prints.
@@haraldhimmel5687 just be sure to like clear-coat it or something because the sun will ruin prints for functional parts
Just don't eat that cherry candy
Get some TPU filament, it works great for gaskets. Also printed threads can be waterproof and even hold pressure. I printed petg adapter for manometer to measure water pressure in my reverse osmosis and it held 8 bar without leaking during measuring, but it was with ptfe tape.
Another gasket method can be 3D Printing a “Die” and using that to cut a shape out of a rubber sheet. But as they said above, TPU is great too!
Nice pfp
@@Zhylo Yeah i have yet to pick one oof
My bet with the lid where the holes don't line up is that your hole pattern isn't symmetric. It might work if you flip the lid 180°. Granted I'm doing some solid armchair engineering right now, and I haven't looked at the file in detail either. Thanks for the interesting video!
That's really clever about the offset making sure the gears are lined up correctly!
Put between "impellers" Colgate, and let it run some time than clean it.
Works for gearboxes when I did that. Add lithium grease to mildly smooth the part at the same time. Then clean it thoroughly.
I imagine running the ABS rotors dry with not enough clearance would wear them until there was, perhaps running them with sand. Anyway, the resin is a great solution.
Baking soda followed by vinigar.
I love how you made the connections between the gears and rotors oof proof with that simple offset trick! Brilliant! Love your videos, and thank you for sharing! Have a wonderful day!
Never thought I'd see a 3D printed Roots blower
Great job with your videos! You obviously put in a TON of time into the design, builds, filming, editing, etc. Fun, entertaining, and educational. Keep up the great work!!!!
Wow! Great job as usual; the FDM rotors are awesome!
AHH a lobe pump. Great for liquids with bits in used in the food industry they use them for moving products with fruit in as doesn't squash it.
Best 3dprinted pump I've seen! Good job!
One interesting pump design you can try is the mazda rx 7 oil pump.
You did possibly the best job that can ever be done in such a projeckt
My blood pressure was pretty high,I am fine thanks for asking. 😂😂😂🤣🤣 Love the video dude 😎
All of your water pump designs would make a great addition to a backpack style water reservoir, like used in forest fire suppression. It would make the ultimate water gun.
Great job as always... the "elephants foot" is also worse when printing in a transparent resin as more light bleeds through.... I found black does not have as many issues.
I swear evey time I come back you are making something cooler.
Dude... i live for the day that i will see you make a pump that doesn't leak xD
Me too! XD
@@LetsPrintYT there is a pump design where a rotor moves rollers over a flexible tube, completely leakless but isn't as great at moving a lot of fluid at once, they're used in dialysis machines.
@@LetsPrintYT You could possibly use an O-Ring Loaded U-Cup Seal on the shafts, they are used in pool pumps and hydraulic pumps for this type of thing.
You may want to look into performing tolerance and flow test prints and making changes such as printing outer walls first in order to get better tolerances.
Great video
changing the outlet nozzle with a smaller one will make the water go faster and farther
100K SUBS YAY, LETS GO PRINT
It's so impressive that the lobe pump creates an air vacuum at the beginning to pull the water into the pump!
Cool project.... I always add guide pins in my design... Makes setting offsets or timing a breeze. Learned this through designing clocks
Very nice pump project!
Cool pump. Maybe the start of a 3D printed water based hydraulic system? Would so love to see that.
this is such a cool way to make a pump, try adding an apex seal like in a rotary engine for better pressure.
I use shed loads of supports on my resin prints too!
Keeping up the tradition of making very leaky pumps I see!
Some of this in the world just never change! XD
I would love to see what the failure point would be if you blocked the flow from the output, like with a garden nozzle on a hose. You earned a sub, great job!
Always enjoy your videos, might use this for a handheld pressure washer.
Ey! Congrats on 100k ❤️
“Sadness happened” - my new term for a mistake, thank you. 😂
Congrats on 100k!
Very interesting pump. I guess a downside of this type is contaminants could easily jam the rotors
Nice work
I would love to see you implement TPU gaskets in to your designs. The leaks might be a thing of the past if you do!
I've never seen a pump like that before! Very interesting design.
Please do current consumption tests per watt to show which design is more efficient.
Hope to see more soon.
every seen a car with supercharger ? basicly the same, wltho they are longer and have a twisted geomerty wonder what that would do xD i they where spirals xD
@@tinkeringstuffs6542 depends on the type, not all are twisted, and theres even centrifugal superchargers which are basically turbos but powered by the engine and not the exhaust. i dare say the twisted geometry of some superchargers, has to do with vibration of the device; and smoothness of air flow, the angle allows for continuous pumping of air as opposed to individual bursts.
White lithium grease is great for lubricating 3d printed gears
Neat design! I'm surprised the FDM printed rotors worked so well. This looks similar to a design used in car super-chargers called a "roots turbo", except not twisted. Did you do that on purpose? It would be cool to see a twisted version, since it has a more continuous output, instead of the pulsed output seen here.
I think twisted might not squeeze the water out.
Congrats on 100k
Perfect 💞💞💞
You unintentionally made a supercharger 😂😂
Man I love your videos. You are just crazy and like a big kid. It's great.
Awesome work and thanks for sharing the design! Really enjoy you talking through the process of design and testing. #subbed
Facinating
I print like that on my resin printer almost all the time. I have a wham bam plate and I got rid of the elephants foot by doing -.6mm in the first later compensation setting thing in lychee.
Well done!
Hey nice monitor man!
You are at 100 k congratulations !
I could see using this for an almost all 3D printed hydroponic setup. 😉
100k subs! Well done:)
About the lid. I'm guessing you just flipped it. Try placing the bear ring in the other hole and flip the lid
What's about a screw-type pump like used in air compressors? I woul love to see one of these 3d printed!
Börger pumps makes the same design. We use them at waste water trestment plants in Denmark. There are several different models but the most used rotors have two or three “heads”. You could probably check their website for some inspiration
7:46 That happened to me once. I'm pretty sure it was because I didn't let the print cool before pulling it off the print bed and it warped it just slightly.
Fantastic! How small of a motor could be used? I want a 12v 1A pump that'll pump around 25 to 35' high (in a pipe).
For the leaks, look into lip seals
Shoulda used tech blu resin mixed with esun hard tough for the wear parts!
I use Pentel markers! So cool.
Saying the lobe pump is more complicated than the gear pump (0:46) is right but only true for the construction of such a pump. Gears are inherently hard to design. But they are used so often, that you can just buy pre-designed gears for your needs in comparison for the rotors of the lobe pump.
The gear pump has mayor problems, when you try to maximize eather pressure difference or massflow:
1) There is no actual lubrication for the gears except water and none at all when pumping gases like air. Additionally the gears often have a ratio of 1:1, which is very bad for wear. The timing gears on the lobe pump have that too but at least they are well lubricated and you can design them just for the timing in mind.
2) The teeth are at risk of shearing off due to high forces by the fluid pressure. So your pressure difference is constrained.
3) The massflow is greatly constrained because the volume of the chambers is pretty small. Thus you have to increase the rpm which increases the rotor tip speed and such fluid losses and losses in the bearings.
2:52 look at captions😳
😏
Would you be limited to how long you could make the rotors? If I remember correctly some internal combustion engines use lobe pumps for the “Superchargers”, they tend to be very long so that may provide even more flow for the same pump!
yes you are correct superchargers use the exact same design known as a root supercharger
Nice
It seems that you consistently have a problem sealing a rotating shaft to a housing and I want to offer a solution.
After disassembling a centripetal pump, I found how the rotating seal worked. It looked like some kind of flange that slides along the shaft but rotates with it. An o-ring sealed the flange to the shaft and a spring would tightly push the flange face onto the housing face. Both the flange and housing had washer-like pieces made of very smooth wearable materials like nylon or Teflon. It might be something to consider looking into replicating.
it looks preaty well. Did you measure the pressure?
Would “threaded inserts” be good for the bolts at ~3:58?
Making a 3D Insert Press could also be a video in of itself!
If you used different materials for the lid and the housing, they may have shrunk different amounts after printing and thus were not the same size.
For the leaks: look into lip seals
My guess ist the cover was rotated 180° by accident.
Maybe print the two parts who's holes didn't line up such that they are oriented the same way on the print bed. That way any non squareness will be equal on both.
The tolerance has to be very tight when an 895 DC motor can't run it. That thing has a shit ton of torque
I think I see another high-pressure hose video coming soon :)
try Archimedes screw pump, shrouded
ducted in a pipe, I mean
That thing works like a Roots super charger but instead of air it uses water .....Looks good , hope it did a wine
Been a long time sub. Love your content
Thank u!! It's great to hear! ;)
good friend greetings for your videos I wanted to comment if there is a book of design and calculation of this type of pumps?
Can you make a side channel water pump next
👏👏👏
The links for the 775 and 895 motors that you used for this project shows site can't be reached but I can search for the motors.
I thought I'd let you know.
Actually PLA is way way way better for gears as it is self lubricating and runs much cooler.
PLEASE make a roots style supercharger/water pump
❤️
I see 100 000 subscribers exactly.
I wonder what would happen if your Inlet was slightly bigger
I have never seen this type of pump before, how does it compare to a simple impeller pump?
this is a positive displacement pump, it flows a constant volume no matter the outlet pressure or it explodes trying.
Doesn't put a seal on the shaft and is surprised to see water leaking around the shaft? What did you think was going to happen?
So basically it’s like a roots supercharger? But still love the vid
The supercharger working principle is a bit different from the lobe pump, but that's true that the rotors look really similar.
The reason for not fitting holes for screws may be are they in symmetry? Because if not you may just rotate the cover...
water bump. i like how you say it
almost ar 100 supbs lets goooooooo
Everytime I see it I just have to say: I love my QIDI X-Plus! :)
X-Plus is absolutely amazing printer. I have used this in every project after I got this printer. I recommend this printer for absolutely everybody especially when you need to print with a bit serious filaments like CF-PA, PC.... ;)
@@LetsPrintYT If interested I have made a Logitech 920 camera mount for this printer which fits on the very front and flips up to open the door....
Nylon rotors next time 👍
If you scale on the Z and increase the height of the lobes 10X to 100X could you turn the pump into a water cannon?
Im interested that how much pressure your pump can do... measure it!
I love ur accent
instead of using a drill use one of your 3d printed engines to run it!!!!!!!!!!!!! great idea would love if you would do it
My Bloodpressure was pretty high
Thank you for asking i'm fine 😂😂
Water is indeed compressable. You would need an insane amount of Force to complete this though
Theres pumps like this at work and a cable tye got caught in one
They arent driven independently if they are geared together and driven from a single input