For the bearings not turning if you tighten the screws too much: You should put a spacer between the 3D printed cage and the bearing itself. The spacer will make sure the outer rings of the bearings are free, but the inner rings will be tight.
The idea of Peristaltic pump just solved my idea of slow water pumping for a small plant watering system. Thanks for the great content you keep making.
Seguramente no van a entender ni mierda de lo que estoy escribiendoles pero de todos modos les dejo el enlace para que ustedes lo hagan en casa, bueno me causa mucha pereza hacer lo de la traducción así que aquí les queda todos los pasos. th-cam.com/video/X4BLydtpllo/w-d-xo.html
Excellent breakdown of what makes such a pump. It seems that building it from standard components is worth it if you don't have to model (at least not too much) the pump assembly from scratch. I'm in two minds, one side agrees with the diy, but considering the requirement to generate a 3D assembly means that perhaps it's not so clear. Either way I love this set of videos you're making. It's making me ask serious questions about the future of custom making and it's interesting to say the least. Thanks.
That's more true with a good 3D printer and a control system that allows you to turn it on and off without having to plug the cable... mine is a bit of a hassle to set up, especially bed levelling, which is very difficult (I still haven't accomplished it). I'll have to order the auto bed levelling device... I ordered it just a bit too early (there's a new version easier to use)...
The problem is that mine is a delta printer, an Anycubic Kossel Linear, to be exact. And you must use the screws in the linear actuators, then home, then do it again until it's leveled.
Hi, I really like your approach to technical issues and solutions. Your ability to explain what you are doing and why is excellent. And your handwriting is just enviably. From a 63 year old B.Sc.EE
Thanks for this video... I've been looking for a way to circulate water through a liebig condenser for months... I've been wasting my time trying to get washing machine drain pumps to do the job... Just happened to watch this video simply because it was a Great Scott video... and you're talking about these things I've never heard of "peristaltic pumps"... exactly what I've been looking for... I'm now the proud owner of an old peristaltic pump from an air conditioning unit and my condenser should be getting flooded with icy water any time soon... thanks and keep up The Great Work.
I have some previous experience with pumps like these, the rotary die cutter I used to operate had one for each print drum. The ones we used had the internal tubes connected to fixed couplings to the outside of the housing. Second, since the hoses had thinner walls so the motor didn't have to work so hard to compress them. Third, their were 3 hoses and the rotors were out of phase like 3 phase electric, meaning one larger motor is able to handle 3 times as much liquid. It's been a long time but if I remember correctly, the hoses we're t supported internally on the structure so the rotary would stretch them slightly improving compression. They were held on to the coupling with hose clamps. This might be more than what you need for this but that's more or less how the industrial variety is constructed.
The motors does not stall faster with microsteps compared to full steps. And it runs a lot smoother with microstepping. So unless you have a really slow microcontroller it is best to use microstepping at 1/16 or 1/8
Your video came at a most opportune time! I have a project that requires a peristaltic pump and your video was a wealth of information for me. Thank you very much!
Good video as usual! However, I am concerned with your conclusion, the >500mL/min buy vs your ~200 mL/min diy, the fact that the 3D printed parts and bearings add to the cost and finally the "long life" of the diy is surely uncertain at this point. I don't see much if any advantage of DIYing this pump. What are your thoughts?
Well and consider the time (time=money) building it; its for sure more of a hassle to just buy it, but then again, if you once know, how its done.... it is an awesome project indeed, anyway.
He was speaking about the lifespan of the motor itself. That stepper motors appear to have a longer lifespan compared to DC motors of that budget class.
Why am I watching this in the middle of the night? This is beyond my skill level. Back to my normal blacksmithing videos. I still left a like for you because I like the idea.
One way to ensure that the bearings do not get stuck while tightening the plastic holders is to add three washers that are just as large as the bearing's inner ring for each set of bearings. One will be placed in between the two bearings and the other two will be in between the plastic and the bearings. This way, you can tighten the bolts and ensure that the outer ring of the bearing is spinning instead of the whole bearing which can wear down the bolt. Another alternative is to modify the plastic holder design and add a lip or whatever it is called at the hole where the bearings will have contact with the plastic that is just large enough that the bearing's outer ring will not touch the plastic holder. You will then only need one washer in between the bearings when installing them,.
Thanks for the inspiration! I made a much beefier version of your design to pump more viscous fluids. On the shaft getting a good fit: next time, undersize the hole slightly and heat the shaft to around melting temp. I just used a lighter for a few seconds. Then slide the shaft on. It's now a perfect fit the first time once it cools. The only negative seems to be slight puckering on the exit of the hole and some cleanup needed for some stray filament. Make sure it's not too hot so you don't burn the filament and ruin the hole!
Thank you for this, I had no idea such a pump existed - I have been working on a bike with broken steel head studs in the aluminium head that I had started eroding out using alum solution. The problem is that the solution needs to be warmed and flowing, the second problem is that all pumps I have have a steel shaft on the impeller would erode from the solution. This pump type would be ideal for my scenario as the lack of fluid contact with the mechanics is perfect. All other methods have failed to remove the studs, whereas even holding them in alum solution for a while using a rudimentary bath has started the process.
I think gauging the price at $15 is way off, once you factor in screws, filament, 3D printer (prototyping, rental, or self-bought) your total is higher than buying one. that being said, great video. and for next project you could look into building the Hakko T12 kit, it’s a cheap soldering iron DIY kit that gives you a professional quality setup.
Well, if you buy all the tools JUST for making this one thing, you can never be cheaper compared to the cost benefits of mass production. You buy these things, because you like to build things. And if you do it, because you like it as a hobby, your time doesn’t really go into the cost equation. Not for me anyway!
A lot of things are cheaper to DIY when you already own half the parts. I'd like to see price breakdowns by part (bill of materials) in comparison to the cheapest premade component available. This makes it really easy to subtract the parts you have or can make and come to your own conclusions... Though it's not the most entertaining thing to have in a video.
Have you tried moving liquids of different viscosities? It would be interesting to see if it can move oils, and even more viscous liquids, such as syrup, ketchup or something similar. Great work! Thank you for your hard work.
By the way, you're the only person who designed a cocktail maker that uses weight and not some crazy flow measurement. I really thought that was pretty slick.
Better buy. Bcz you're here working with 100-240ac volt which can be lethal.. DIY won't gonna be last long.. I have a soldering iron. From last 4years It cost only 150rs to me.
I work at a municipal water treatment plant. We use peristaltic pumps to add liquid chlorine (sodium hypo-chloride) to the water flow. They are self-priming, and they are cheap to replace the pumping tube when it wears out due to cycling, every six months or so.
minitos1 +100!! As long as you are comfortable and SAFE working with high DC voltages upwards of 350V, it is a very rewarding project to take on. And the sound will leave you speechless... ;)
May be way late but if you add small washers the size of the bearing hub, you can tighten them as much as you want and the bearings will spin freely as there won't be any friction against the bearing face, on only the hub. Really cool video!
Check out "lookmumnocomputers" channel to watch a crazy British mad scientist tweaker dude do such things. :D He made an organ it off Furbys and shows how to do basic modular synth stuff.
You reply to me thanks you im your greatest fans I watch your video over and over for fun just for support..he reply I'm never forget this day thanks Scott
Good point... If a DIY takes lets say 3 hours to make and saves me 20$ ... well, then i would buy it ... but if you have fun doing it it is ok if it takes 10 hours and saves you 5$ ;) if it feels like work its not worth it saving a few bucks but if it makes fun its worth it even if you dont save a dollar :) .... just my opinion :)
Thank you for your efforts on this project. I grow hydroponic lettuce in my home and looked into automating the nutrient solution mix. This is exactly what many commercial companies use - three to four of these pumps are required required. I found the commercial pump too expensive (purchase + repair cost) so I performed the mixing manually for some time -- and its a daily chore!. I will be using your design when I start the process back up. I have seen several comments that the pricing unjustified your DIY recommendation. For my two cents -- I would consider a one-to-one price match -- still recommending the DIY solution. When you put these pumps into operation (DIY or commercial), they will eventually fail. The cost of repair on the DIY model will be small but the commercial model will need to be a complete rebuy. Thanks again for an excellent article.
Life Changing Realities Fellowship? Lung Cancer Research Foundation? I am talking about a simple yet educational electric circuit. It is also easy to make a video about. I have made a few prototypes and designed the PCB. All seem to work fine. You do have to have a digital oscilloscope though. Idea from th-cam.com/video/3Y_WcuIenSM/w-d-xo.html
there's plenty other people who have loads more RC and 3D printing experience on youtube and they have already done 3D printed RC planes, I would rather see Scott stick to electronics :)
Hi Scott, I worked for the company that made the "Britvic Drinks Dispencer". I don't know if you have heard of it or not, but it does not matter. Just to let you know that all materials used in it have to meet "Food Grade" quality control standards, that means BS, AMSE and TUV. Best to check out if your tubing meets those standards! Cheers.
AVPHT you can easily hack sonoff devices and without voiding the guarantee for the use in 220V home circuits. And because they are mass produced - you will barly get them build cheater than that - i hacked a sonoff touch wall switch and it works great
I used to work in a hospital, and we had patients who were fed by Nasal Gastric incubation.the Enteral feeding pumps [ Kangaroos,at the time ] used peristaltic pumps. but they must have had stepper motors, because the food medium [ Sustacal ] moved up the N.G tube in pulses, rather then a constant stream. but the kewl part was that the Pump head, protruded from the front of the unit. so you could remove the cover on the pump to insert a fresh tube when you hung a bag, with out needing any tools. I think they were turn locks, or thumb screws [ Don't remember it was in the late 80's.]
You can get significantly higher flow by using softer tube material (like PharMed BPT, which is designed for this very purpose) or by increasing tube diameter. That tube is very important part of the pump.
For me diy is best and winner Because its own invention You know invention always does a little work then the ready made ones but when it works it gives a lot of satisfaction If someone is agree with my words then give me a like.
And the filament including fails and additional helper structures, solder, time, electric power, some hair and or its color. Wait the screws are missing in the above list plus the tubing. Yes there is a completer list but still the content in my first sentence applies.
The most useful aspect of peristaltic pumps is the predictability of flow rate. I'd like to see this pump with an optical encoder to detect and correct "slip", and a simple display that meters the resultant flow. A precision, variable, metered pump is an extremely useful device in many industries and hobbies. Off-shelf systems cost around $180, but they don't detect/correct stepper slip.
I think according to me buy wins because not everybody can write arduino codes plus everybody doesn’t own a 3D printer. But this video is awesome for those who have all that available. Great video.
Microphone, amplifier circuit, bandpass filter, ear-bud speaker. (And compare the cost of those as they are to a device with something like FDA approval.)
Not bad as long as you have a 3D printer (or are a good woodworker lol). How about a light switch/dimmer WiFi based to work with Alexa or Google for home automation and control LEDs. I’m guessing some type of 555 based system?? But my friend you are truly the expert! Thank you for sharing your knowledge!
You realise the mechanic doesn't add the cost of his tool kit to your car service. The dentist doesn't add the cost of the x-ray machine to your checkup. Yes, they might include a small charge for these things, but it's the cost divided by the estimated number of times they'll use it in its expected service life, not the price they paid for it.
He also forgot to include the price of the computer(to order the buy pump) so the buy option is over $100 Point is, lots of DIYers have access to 3d printers, and you don't need to buy one per pump.
I'm going to make one, just for the experience, also to use the PCB sponsors of Mr Scott. But there is no way I could make one cheaper than the clones from China.
Great video, great project. I enjoyed watching. But it does make me appreciate the value of mass manufactured products for people who don't have the technical knowledge , skills or equipment like 3d printers, design software, computers etc
I'd love to see a DIY or buy for a parabolic microphone. I really like your videos especially your explanations with drawings. If I had any criticism it would be not relying on the 3D printer so much.
beautiful examination of the pump, congratulations! With a stepper motor you can control the number of revolutions and therefore the flow rate of the pump very precisely, which you can not do with a direct current motor See you next time
Hey GreatScott! Good job! that a good idea to compare these 2 solutions. But I not agree with you about the cost: 30$ for a peristaltic pump, whereas a diy project means 10$(motor)+5/10$(arduino)+2/5$(motor driver)+3Dprinting stuff+ building time =>I my opinion, this DIY project is more expensive than a bought product mounted and reliable. Anyway, the pump you made looks great!
Another great DIY or Buy video, Scott! But I think for anyone who wants to rebuild this project for making the DIY cocktail machine themselves should use food-safe silicone tube. Afterall, you'll be drinking whatever that you'll be making
Seems like this would be very easy to produce with a hole saw and drill bits using acrylic. Might have to give it a try, a peristatic pump would have saved me some real neck and head ache today. Was draining fluid out of a transmission that holds 14 liters of fluid and no drain plug. Without a pump the only way to drain it is to carefully loosen bolts on the catch pan until you get a nice consistent leak. Have to lay in an awkward position to reach all 32 of the bolts.
Really the answers to these should be what your time has to be worth for DIY to make sense (ideally, accounting for the impact making multiple units would have).
I have some P-Pumps and was looking for a resource on how to power/program flow rates on them for a project. Looks like I’ve found the right place to continue looking.
I built something similar like the Soda dispenser, but i used a Basic air pump to build up a pressure in the bottle which then "pumps" the water into the tube. i also put this metal Thing which protects a fan under the glass, which got filled, because a bit of liquid is alsways dropping out of the tube after shutting down the air pump. this water collects inside a bowl under the whole construction. it sounds complicated but is build very easily.
It is a control issue. If you want fine dosing, then a stepper is the way to go, ex1: In a chemistry lab, you might only want to dose something consistently at 1ml/liter ex2: For his drink machine, you might want to add 5ml of tabasco sauce to a drink, not 500ml I'm currently looking at using one of these peristaltic pump setups with maker-goo (UV hardenable SLA resin) to see if I can print in braille on paper. given each dot for braille is 0.5 ± 0.1 mm high x diameter = 1.5 ± 0.25 mm This means that to print each braille dot, I need to issue approximately 0.8835 microliter per dot Assuming 160ml/minute at 300 rpm, if I use one of these stepper motors at 16 microsteps, I could theoretically get 0.166 microliter/ (1/16 step) and print each dot within 5 to 8 microsteps.
Nice work! I once created a standard turbine pump but it comes with a lot of leakage and wear of the parts. This one looks very good. I will try it rebuild it and finally water my plants automatically...
It seems that the speed of the rotor is the only limiting factor in its flow rate. Does it stop being reliable if the speed is increased even more? I mean, does the efficiency of the pumping decrease with speed higher than the one you demonstrated as maximum?
I wonder if the stepper motor has enough torque that it could run two or three sets of rollers and enclosures ganged up inline? Maybe it could be run slower and move more fluid or move two or three liquids at the same time
For the bearings not turning if you tighten the screws too much: You should put a spacer between the 3D printed cage and the bearing itself. The spacer will make sure the outer rings of the bearings are free, but the inner rings will be tight.
The idea of Peristaltic pump just solved my idea of slow water pumping for a small plant watering system. Thanks for the great content you keep making.
Heart pacemaker. DIY OR BUY?
*DIE OR BUY?
Brutaltronics 😂😂
Do you know a surgeon who'd be willing to implant a home-made pacemaker?
@BertyFromDK. Who needs a Surgeon ?. DIY the surgery as well.
Paul Taylor now that's hardcore lol :D
Next diy or buy make a 3D printer
Look up Cherry printer in youtube :)
Brian C thanks
Yeah !!! 3D printer using very chep Dvd writers .
That's been done to death
Seguramente no van a entender ni mierda de lo que estoy escribiendoles pero de todos modos les dejo el enlace para que ustedes lo hagan en casa, bueno me causa mucha pereza hacer lo de la traducción así que aquí les queda todos los pasos. th-cam.com/video/X4BLydtpllo/w-d-xo.html
Excellent breakdown of what makes such a pump. It seems that building it from standard components is worth it if you don't have to model (at least not too much) the pump assembly from scratch. I'm in two minds, one side agrees with the diy, but considering the requirement to generate a 3D assembly means that perhaps it's not so clear. Either way I love this set of videos you're making. It's making me ask serious questions about the future of custom making and it's interesting to say the least. Thanks.
Glad you liked it and thanks for the feedback :-)
Yes
That is what I’m saying. I like those videos
That's more true with a good 3D printer and a control system that allows you to turn it on and off without having to plug the cable... mine is a bit of a hassle to set up, especially bed levelling, which is very difficult (I still haven't accomplished it). I'll have to order the auto bed levelling device... I ordered it just a bit too early (there's a new version easier to use)...
The problem is that mine is a delta printer, an Anycubic Kossel Linear, to be exact. And you must use the screws in the linear actuators, then home, then do it again until it's leveled.
Hi,
I really like your approach to technical issues and solutions.
Your ability to explain what you are doing and why is excellent.
And your handwriting is just enviably.
From a 63 year old B.Sc.EE
Thanks for the feedback :-)
Happiness. DIY OR BUY?
You can print Happiness.
@@Sebastian_Koenig_ I saw what you did there
Buy is the only ans
You can say happiness
DIY
Thanks for this video... I've been looking for a way to circulate water through a liebig condenser for months... I've been wasting my time trying to get washing machine drain pumps to do the job... Just happened to watch this video simply because it was a Great Scott video... and you're talking about these things I've never heard of "peristaltic pumps"... exactly what I've been looking for... I'm now the proud owner of an old peristaltic pump from an air conditioning unit and my condenser should be getting flooded with icy water any time soon... thanks and keep up The Great Work.
I have some previous experience with pumps like these, the rotary die cutter I used to operate had one for each print drum. The ones we used had the internal tubes connected to fixed couplings to the outside of the housing. Second, since the hoses had thinner walls so the motor didn't have to work so hard to compress them. Third, their were 3 hoses and the rotors were out of phase like 3 phase electric, meaning one larger motor is able to handle 3 times as much liquid. It's been a long time but if I remember correctly, the hoses we're t supported internally on the structure so the rotary would stretch them slightly improving compression. They were held on to the coupling with hose clamps. This might be more than what you need for this but that's more or less how the industrial variety is constructed.
I don't watch many videos, normally very focused on what I like to watch- but you pop up a lot - and every one is good. Well done
Thank you :-)
Why are you using 1/16 steps instead of 1/2 or full steps so the motor can rotate faster?
It should increase the liquidflow per minute.
Asked myself the same question.
The motors does not stall faster with microsteps compared to full steps. And it runs a lot smoother with microstepping.
So unless you have a really slow microcontroller it is best to use microstepping at 1/16 or 1/8
Wankel Motor can you explain how 1/16 steps change the input signal of driver?
@@K.A7287 You need a higher frequency.
@@Theodisker thanx but my problem was that it was just a rule of thumb not an exact thing!of coarse higher frequency is going to make it run smoother.
Someone PLEASE, give this an an award.
Make a Welder Inverter , that controls the amps , the duty cycle .
yankov_xxx360xxx_ TOTTALY AGREE WITH YOU
In a old video he did a transformer welder but it was really un finished and he said he will come back to that project , thats why i sugested it
Agreed! Would love to see that.
@Szakembőr TV TMIAE
thats the idea , not designing an inefficient transformer welder , but a high efficiency inverter welder !
ye make a inverter welder with pretty high duty cycle
Your video came at a most opportune time! I have a project that requires a peristaltic pump and your video was a wealth of information for me. Thank you very much!
Good video as usual! However, I am concerned with your conclusion, the >500mL/min buy vs your ~200 mL/min diy, the fact that the 3D printed parts and bearings add to the cost and finally the "long life" of the diy is surely uncertain at this point. I don't see much if any advantage of DIYing this pump. What are your thoughts?
Well and consider the time (time=money) building it; its for sure more of a hassle to just buy it, but then again, if you once know, how its done.... it is an awesome project indeed, anyway.
BUT... if you have a box of spare parts you have salvaged, you can creates a cheap DIY pump
He was speaking about the lifespan of the motor itself. That stepper motors appear to have a longer lifespan compared to DC motors of that budget class.
Why am I watching this in the middle of the night? This is beyond my skill level. Back to my normal blacksmithing videos.
I still left a like for you because I like the idea.
One way to ensure that the bearings do not get stuck while tightening the plastic holders is to add three washers that are just as large as the bearing's inner ring for each set of bearings. One will be placed in between the two bearings and the other two will be in between the plastic and the bearings. This way, you can tighten the bolts and ensure that the outer ring of the bearing is spinning instead of the whole bearing which can wear down the bolt.
Another alternative is to modify the plastic holder design and add a lip or whatever it is called at the hole where the bearings will have contact with the plastic that is just large enough that the bearing's outer ring will not touch the plastic holder. You will then only need one washer in between the bearings when installing them,.
YES! I've been waiting for the DIY as a winner for months! It might be suitable when I will build a DIY lassi machine. Thanks, Scott.
Thanks for the inspiration! I made a much beefier version of your design to pump more viscous fluids. On the shaft getting a good fit: next time, undersize the hole slightly and heat the shaft to around melting temp. I just used a lighter for a few seconds. Then slide the shaft on. It's now a perfect fit the first time once it cools. The only negative seems to be slight puckering on the exit of the hole and some cleanup needed for some stray filament. Make sure it's not too hot so you don't burn the filament and ruin the hole!
Thank you for this, I had no idea such a pump existed - I have been working on a bike with broken steel head studs in the aluminium head that I had started eroding out using alum solution. The problem is that the solution needs to be warmed and flowing, the second problem is that all pumps I have have a steel shaft on the impeller would erode from the solution. This pump type would be ideal for my scenario as the lack of fluid contact with the mechanics is perfect. All other methods have failed to remove the studs, whereas even holding them in alum solution for a while using a rudimentary bath has started the process.
I think gauging the price at $15 is way off, once you factor in screws, filament, 3D printer (prototyping, rental, or self-bought) your total is higher than buying one.
that being said, great video. and for next project you could look into building the Hakko T12 kit, it’s a cheap soldering iron DIY kit that gives you a professional quality setup.
I second on the soldering iron DIY.
Well, if you buy all the tools JUST for making this one thing, you can never be cheaper compared to the cost benefits of mass production. You buy these things, because you like to build things. And if you do it, because you like it as a hobby, your time doesn’t really go into the cost equation. Not for me anyway!
Zex Maxwe
This. 15 bucks seems a bit optimistic. Bearings usually aren't free either.
A lot of things are cheaper to DIY when you already own half the parts. I'd like to see price breakdowns by part (bill of materials) in comparison to the cheapest premade component available. This makes it really easy to subtract the parts you have or can make and come to your own conclusions... Though it's not the most entertaining thing to have in a video.
For me the winner is the diy cause it help us awaken our creativity thank u very much man
Have you tried moving liquids of different viscosities? It would be interesting to see if it can move oils, and even more viscous liquids, such as syrup, ketchup or something similar.
Great work! Thank you for your hard work.
By the way, you're the only person who designed a cocktail maker that uses weight and not some crazy flow measurement. I really thought that was pretty slick.
Usb Soldering iron DIY Or Buy please
Good idea
Allwyn S but DIY OR BUY?
Allwyn S but i wants to watch..
Better buy. Bcz you're here working with 100-240ac volt which can be lethal..
DIY won't gonna be last long..
I have a soldering iron. From last 4years
It cost only 150rs to me.
New Here 1 but this can be dangerous
I'm just about to start automating my tiny herb garden (for whenever I'm away for a while). Having a pump is a must. Thank you for this amazing video!
same!
Will you post any videos on your second channel ??
Maybe.....
I work at a municipal water treatment plant. We use peristaltic pumps to add liquid chlorine (sodium hypo-chloride) to the water flow. They are self-priming, and they are cheap to replace the pumping tube when it wears out due to cycling, every six months or so.
DIY or BUY: Tube amplifier?
I'd say DIY for sure. Been building tube amps for about a year now and it's been TOO much fun
minitos1 +100!! As long as you are comfortable and SAFE working with high DC voltages upwards of 350V, it is a very rewarding project to take on. And the sound will leave you speechless... ;)
Dagerman65 one would think you work with it turned off...
DIY or BUY: vacuum tubes
And then there's Ben Krasnow...
th-cam.com/video/mUcUy7SqdS0/w-d-xo.html
May be way late but if you add small washers the size of the bearing hub, you can tighten them as much as you want and the bearings will spin freely as there won't be any friction against the bearing face, on only the hub. Really cool video!
Hey greatscott, could you build a synthesizer or something similar? That would be great
You could build a simple one like the one here. musicfromouterspace.com/analogsynth_new/ALIENSCREAMER/ALIENSCREAMER.php
Check out "lookmumnocomputers" channel to watch a crazy British mad scientist tweaker dude do such things. :D He made an organ it off Furbys and shows how to do basic modular synth stuff.
hackeritalics holy shit I love that guy
that will be awesome
scott your like the greatest thing on youtube ...i wait every sundays at about 11:00 for your video your the greatest
You're welcome :-)
You reply to me thanks you im your greatest fans I watch your video over and over for fun just for support..he reply I'm never forget this day thanks Scott
The work you put in is a cost too, how long did it take?
Casey Urquhart Why does it matter? He's doing it for fun. Do you charge yourself your free time?
Good point... If a DIY takes lets say 3 hours to make and saves me 20$ ... well, then i would buy it ... but if you have fun doing it it is ok if it takes 10 hours and saves you 5$ ;)
if it feels like work its not worth it saving a few bucks but if it makes fun its worth it even if you dont save a dollar :) .... just my opinion :)
But the learning you do is an income... so how do you factor that in?
Free since he earns it back by producing this video ;)
It's not cheaper anyway if you consider how much he is paying for flow rate. The BUY option has a lower price per mL/min
Thank you for your efforts on this project. I grow hydroponic lettuce in my home and looked into automating the nutrient solution mix. This is exactly what many commercial companies use - three to four of these pumps are required required. I found the commercial pump too expensive (purchase + repair cost) so I performed the mixing manually for some time -- and its a daily chore!. I will be using your design when I start the process back up. I have seen several comments that the pricing unjustified your DIY recommendation. For my two cents -- I would consider a one-to-one price match -- still recommending the DIY solution. When you put these pumps into operation (DIY or commercial), they will eventually fail. The cost of repair on the DIY model will be small but the commercial model will need to be a complete rebuy. Thanks again for an excellent article.
Why not a simple dc motor ??
longlife...
But it would have reduced cost even more
Exactly
I am a great fan of you. The way you explain is wonderful.
DIY or BUY LCR meter.(for use with oscilloscope maybe?)
No !!!! That should be LCRF atleast
Life Changing Realities Fellowship?
Lung Cancer Research Foundation?
I am talking about a simple yet educational electric circuit. It is also easy to make a video about. I have made a few prototypes and designed the PCB. All seem to work fine. You do have to have a digital oscilloscope though. Idea from th-cam.com/video/3Y_WcuIenSM/w-d-xo.html
For long the best "DIY or Buy" episode. Awesome!
Thanks
Can you make Rc 3D printed plane????? Great video!!!
Interesting !!
I think Great Scott will read..
Wouldn't that be a bit to heavy?
these guys 3dlabprint.com already do 3d printed planes! if you search on youtube you will find reviews of them.
there's plenty other people who have loads more RC and 3D printing experience on youtube and they have already done 3D printed RC planes, I would rather see Scott stick to electronics :)
LED plant growing lamps would be a good one and topical to this time of year for many of your viewers.
DIY is often an option if you have the tools. This project would have been very difficult without a 3D printer or some kind of mill.
I guess you could make those parts out of wood without that many problems :)
Ein wichtiger Punkt der für die DIY Version spricht ist der der Fakt das man die Komponenten in anderen Projekten besser wiederverwenden kann
Make a diy EEG circuit under budget
Hi Scott, I worked for the company that made the "Britvic Drinks Dispencer". I don't know if you have heard of it or not, but it does not matter. Just to let you know that all materials used in it have to meet "Food Grade" quality control standards, that means BS, AMSE and TUV.
Best to check out if your tubing meets those standards! Cheers.
diy wireless relay for home automation or buy
AVPHT you can easily hack sonoff devices and without voiding the guarantee for the use in 220V home circuits. And because they are mass produced - you will barly get them build cheater than that - i hacked a sonoff touch wall switch and it works great
My first viewing of the DIY series. Fantstisch!!!! Ausgezeichnet!
Notification pressed faster than light speed
Kyliou 301 Good doggo
Bruce John Speedster is not mine :(
Awesome work, man! A guy here from Brazil made a pump like that too, but with pvc boards he made himself from pvc tubes. 😀
WiFi controlled wall socket - DIY or Buy
Nice idea
I used to work in a hospital, and we had patients who were fed by Nasal Gastric incubation.the Enteral feeding pumps [ Kangaroos,at the time ] used peristaltic pumps. but they must have had stepper motors, because the food medium [ Sustacal ] moved up the N.G tube in pulses, rather then a constant stream. but the kewl part was that the Pump head, protruded from the front of the unit. so you could remove the cover on the pump to insert a fresh tube when you hung a bag, with out needing any tools. I think they were turn locks, or thumb screws [ Don't remember it was in the late 80's.]
"DIY or Buy" Lab Pwer Supply
Buy.. If you want to make. you should have constant voltage/constant current, short circuit protection. So it take some time :)
@@Passco666 a pc PSU has all that
@@amelliamendel2227 it supplies maximum 12v
You can get significantly higher flow by using softer tube material (like PharMed BPT, which is designed for this very purpose) or by increasing tube diameter.
That tube is very important part of the pump.
Diy or buy CNC. Or 3d printer. If u can manage it with your other projects and if you have the time. Plss like if u agree
Plus, maybe go for an entirely 3d printed 3d printer? (except for motors and extruders)
For me diy is best and winner
Because its own invention
You know invention always does a little work then the ready made ones but when it works it gives a lot of satisfaction
If someone is agree with my words then give me a like.
Well, first, you have to spend money to buy a 3D printer!
And the filament including fails and additional helper structures, solder, time, electric power, some hair and or its color. Wait the screws are missing in the above list plus the tubing. Yes there is a completer list but still the content in my first sentence applies.
These days its common to have 3D printer at home, at least some friend should have one.
A 3D printer is likely an investment that will pay back over time, provided that you build enough useful projects with it ;)
How about high power flashlight diy or buy?
Spot Welder Buy or DIY
Please check out the TH-cam videos for Spot welder car battery. there are great cheap and easy projects out there
The most useful aspect of peristaltic pumps is the predictability of flow rate. I'd like to see this pump with an optical encoder to detect and correct "slip", and a simple display that meters the resultant flow. A precision, variable, metered pump is an extremely useful device in many industries and hobbies. Off-shelf systems cost around $180, but they don't detect/correct stepper slip.
2:28 Yes !! my guess was right !! On FB GS post
Congrats!
GreatScott! Thks for reply
Stop putting spaces before sentence ending punctuation!
My Grammar didn't Teach me That :)
I think according to me buy wins because not everybody can write arduino codes plus everybody doesn’t own a 3D printer. But this video is awesome for those who have all that available. Great video.
Hearing Aid: DIY or Buy
What?
I totally agree, they are very expensive. I made my brother a DIY Hearing Aid but it caches noise too. Hopefully Scott reads this.
Microphone, amplifier circuit, bandpass filter, ear-bud speaker. (And compare the cost of those as they are to a device with something like FDA approval.)
Not bad as long as you have a 3D printer (or are a good woodworker lol).
How about a light switch/dimmer WiFi based to work with Alexa or Google for home automation and control LEDs. I’m guessing some type of 555 based system?? But my friend you are truly the expert! Thank you for sharing your knowledge!
You forgot include the 3d printer cost...
Joel Carvalho you can let local hackerspace or printing farm to print the parts for you
Matěj Kadlec In Brazil we don't have those stuff 😂😂😂
160$ on gearbest :))
I bought a printer recently complete for 200 ready out of box. I think they are as realistic now for the home shop as a soldering iron or table saw.
mirrored window where?
In my industry we put grease on the rollers and the silicone tube. This greatly extends life of the tube.
I think you forgot to add cost of 3d printer...
Thats a one time investment not counts for the price of a pumpm
You realise the mechanic doesn't add the cost of his tool kit to your car service. The dentist doesn't add the cost of the x-ray machine to your checkup.
Yes, they might include a small charge for these things, but it's the cost divided by the estimated number of times they'll use it in its expected service life, not the price they paid for it.
He also forgot to include the price of the computer(to order the buy pump) so the buy option is over $100
Point is, lots of DIYers have access to 3d printers, and you don't need to buy one per pump.
Daaanke für das Video du bist die RETTUNG!
Arduino DIY or BUY
Emil Racovita of course BUY
Emil Racovita Buy... i never had any issues with those cheap arduinos from china.
I'm going to make one, just for the experience, also to use the PCB sponsors of Mr Scott. But there is no way I could make one cheaper than the clones from China.
better buy..
already made a diy arduino with built in microphone switch ldr potentionmeter led etc.
Great video, great project. I enjoyed watching.
But it does make me appreciate the value of mass manufactured products for people who don't have the technical knowledge , skills or equipment like 3d printers, design software, computers etc
Has someone tryed to run a stepper motor like a single phase induction motor ?would like to know if it works
I found the part in a deskjet printer that I salvaged and was not sure how it is used. Now is a good time to try it. thx for the video
The moment you 3d print something it goes out of the diy range for most people (who don't own a 3d printer).
This is what I needed for my project! Thank you very much!
I'd love to see a DIY or buy for a parabolic microphone. I really like your videos especially your explanations with drawings. If I had any criticism it would be not relying on the 3D printer so much.
Hey Scott! At min 3:06 you add a 100µF cap to the power in of the driver. Why do u do it and how do you calc the cap? Thanks a lot!
beautiful examination of the pump, congratulations!
With a stepper motor you can control the number of revolutions and therefore the flow rate of the pump very precisely, which you can not do with a direct current motor
See you next time
i really liked these DIY OR BUY episodes.You are doing a great job GreatScott!
Hey GreatScott! Good job! that a good idea to compare these 2 solutions. But I not agree with you about the cost: 30$ for a peristaltic pump, whereas a diy project means 10$(motor)+5/10$(arduino)+2/5$(motor driver)+3Dprinting stuff+ building time =>I my opinion, this DIY project is more expensive than a bought product mounted and reliable. Anyway, the pump you made looks great!
Another great DIY or Buy video, Scott! But I think for anyone who wants to rebuild this project for making the DIY cocktail machine themselves should use food-safe silicone tube. Afterall, you'll be drinking whatever that you'll be making
Thanks a lot for your clear information. Your channel is very instructive.
Thanks Scott, for sharing your projects. and Yes, a 3D Printer / Laser Cutter would be Great!!
Can you explain how you went about closing the mounting holes at 5:30 into the video?
always a pleasure Scott. outstanding work.
I was thinking about making the iteration of your drink machine, kinda glad I waited.
I'm curious about how much suction it produces. In other words, can it pump water that is 2m below the pump without having to prime it?
Can you provide the updated cad models for nema 17 motor please
THAT'S GREAT .. i think the diy is the winner also
Seems like this would be very easy to produce with a hole saw and drill bits using acrylic. Might have to give it a try, a peristatic pump would have saved me some real neck and head ache today. Was draining fluid out of a transmission that holds 14 liters of fluid and no drain plug. Without a pump the only way to drain it is to carefully loosen bolts on the catch pan until you get a nice consistent leak. Have to lay in an awkward position to reach all 32 of the bolts.
Really the answers to these should be what your time has to be worth for DIY to make sense (ideally, accounting for the impact making multiple units would have).
I have some P-Pumps and was looking for a resource on how to power/program flow rates on them for a project. Looks like I’ve found the right place to continue looking.
I built something similar like the Soda dispenser, but i used a Basic air pump to build up a pressure in the bottle which then "pumps" the water into the tube. i also put this metal Thing which protects a fan under the glass, which got filled, because a bit of liquid is alsways dropping out of the tube after shutting down the air pump. this water collects inside a bowl under the whole construction. it sounds complicated but is build very easily.
Man! That was awesome! I wish I had a 3d printer, getting things done with it is so satisfying! Great work "Scott!" :)
Why did you go with stepper motor instead of DC-motors? I think a DC-motor with a suitable gearbox would be about the same as a stepper, if not less.
It is a control issue. If you want fine dosing, then a stepper is the way to go,
ex1: In a chemistry lab, you might only want to dose something consistently at 1ml/liter
ex2: For his drink machine, you might want to add 5ml of tabasco sauce to a drink, not 500ml
I'm currently looking at using one of these peristaltic pump setups with maker-goo (UV hardenable SLA resin) to see if I can print in braille on paper. given each dot for braille is 0.5 ± 0.1 mm
high x diameter = 1.5 ± 0.25 mm
This means that to print each braille dot, I need to issue approximately 0.8835 microliter per dot
Assuming 160ml/minute at 300 rpm, if I use one of these stepper motors at 16 microsteps, I could theoretically get 0.166 microliter/ (1/16 step) and print each dot within 5 to 8 microsteps.
if you make one with more flow, just fit more room to fit more tubes vertically, it's cheaper than making another one
Wow can't believe he didn't think of that
Nice work! I once created a standard turbine pump but it comes with a lot of leakage and wear of the parts. This one looks very good. I will try it rebuild it and finally water my plants automatically...
N' i wooseeu nextime ! I like the creativity and professionalism of this guy ! Good job !
Im suprised you havent reached 1mil yet. You quality is just amazing.
It seems that the speed of the rotor is the only limiting factor in its flow rate. Does it stop being reliable if the speed is increased even more? I mean, does the efficiency of the pumping decrease with speed higher than the one you demonstrated as maximum?
its first time when diy win!!! (not watched all videos yet)
I wonder if the stepper motor has enough torque that it could run two or three sets of rollers and enclosures ganged up inline? Maybe it could be run slower and move more fluid or move two or three liquids at the same time
That's a rally interesting pump design. Reminds me of a Colon.