How Strong are 3D Printed Parts? 1000 Subscriber Special!!
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- Опубліковано 29 гру 2020
- How strong are 3D printed parts? In this video I build a robot / machine to find out! The plan is to use a gearbox to pull apart dog bone test samples in a kind of makeshift tensile test, while measuring the strength of the parts using an Arduino Uno and a load cell.
STL files here: www.thingiverse.com/thing:470...
Parts:
1 stepper motor:
www.amazon.com/gp/product/B07...
1 motor driver:
www.amazon.com/gp/product/B07...
1 load cell with amp:
www.amazon.com/gp/product/B07...
2 arduino unos:
www.amazon.com/Arduino-A00006...
4 3mm bolts, 2 4mm bolts, 2 5mm bolts:
www.amazon.com/gp/product/B07...
Filaments:
Silk Copper PLA filament:
www.amazon.com/gp/product/B07...
White Marble PLA filament:
www.amazon.com/ZIRO-Printer-F...
Black ABS filament:
www.amazon.com/HATCHBOX-3D-Fi...
Green PETG:
www.amazon.com/YOYI-Filament-... - Розваги
Algorithm: recommend this channel to people who watch channels like applied science, smarter every day, steve mould, veritasium, that beared bald guy and channels like that. This is great! Bindging.
U literally Copied My Sub List uhhh
Vsause : )
Lmao the image for plastics. That's too funny
glad to see we are still using American units 3:20
I don’t like that! 😝
Damn right
imagine this guy at 1M subscribers lifting a car with just the smallest drone propeller motor he can find
can't wait to see that :D
Yeah and the car will be 1 feet off the ground when his grandson dies
Gets a million subscribers him: infinite torque
and I'd only need 5~6 more gears, 12 or 13 total, to get to a million in-lbf of force!
@@Sciencish Or a train of harmonic drives! You could get incredible gear reductions in a very small envelope. I've seen a few folks on UA-cam printing harmonic drives. It would also be neat to try out a herringbone geared harmonic drive.
very underrated channel even at 3k your channel should be at 10 k by june if you put out more bangers like this. people love watching printer mod videos so that might blow up :) just a thought keep up the good work
*by march
@@kcasc_hd *Today
Well he's at 18k
@@minii8608 thanks dude! i feel pretty smart now
What a Underrated Channel...
i watch this video 2 weeks after you uploaded it and i see what you have 4k subscribers now, you make a great videos bro.
PD: sorry if mi english its bad, im learning because mi native language is the spanish
UA-cam finally recommended a great channel 👏👏 I appreciate your content, it's a bit Sciencish
Yeah it is crazy that you dont have more subs, this is cool
worked in a Strength of Materials lab tensile testing samples all day. I love this video!
and now, *ITS OVER 9000!*
Dude -- you are awesome! Keep up the posting!! You are a great speaker, very natural on the camera, witty and you impart so much knowledge in a tightly edited package. But I fear that we may only benefit from your presence on UA-cam for a short time before you are off to bigger and better things. You are clearly very smart and talented.
dude holy cow the amount of time dedicated to measurements for press fitting and gear meshing..... the tolerances you work with. nice job man.
super elegant
algorithm do your thing you brought me here so bring more people here
So glad I found this channel, you'll do good mate this is high quality content, good luck!
This is really cool seeing these test and seeing how different material react to this kind of stress
This is so cool Luke! Great video man, definitely subscribing.
Thank you for sharing.
If you want more infos about the strength of filament, CNC Kitchen is your friend.
Congrats on the 3000 subs, add one more on that list, hi from Colombia 😁🥳
Well imagine that, this is exactly the question I posed Google.
I'm a software engineer by day but I like tinkering with mechanical things and 3D printing is a tech hobbyist dream... I could always use something that, seemingly I should be able to print myself however, I am curious as to its durability because it would have to withstand mountain bike crashes... Or getting thrown into a tree, or RC car crashes or the like :)
Long winded reply notwithstanding, I found a gem of a channel and subbed up in the process!
Totally on par with stuffmadehere and smarter every day! Enjoyable education.
Que CNCKitchen! :) Great channel man!
Pretty cool test
About the Arduino thing: If the driver you're using is controlled by a simple Step/Direction Interface (which it looks like to me). You could just set up one of the PWM Channels (using analogWrite() with a 50% duty cycle). To my knowledge they run independent of the CPU once set up, so you could still run your load cell code after. Alternatively you could go bare-metal and use one of the ATMega328's Timer Peripherals. Those also run independently of the CPU.
Timer + interrupt is the way to go.
Buuuut - you need to watch out what functions/libraries you use cause they are ....mostly crap for arduino (Changing registers and relying on nobody else touching them).
Best would be to ditch the Arduino-stuff as soon as possible and learn what hardware is used and how to program it, and only use the arduino """ide""" for compiling/uploading the code.
Keep it up and you will have a lot more subs in no time.
I can tell you’re an ME. Being an EE myself I was impressed by the gear train design and then chuckled at the 2 arduinos haha. Nothing wrong with that though.
You got my subscription with that plastic joke
I'd argue that picking up a hammer to shape some scrap metal isnt lazy, it's good recycling!
Next time I come across your channel, you'll have infinite torque!
I like the rough analysis. It appeals to an engineering approach rather than theoretical physics one. Perhaps I'm biased.
This channel is cruelly underrated. Nice video tho
Now its 34k subscribers)
Nice video! I like the idea of a machine with a gear that turns one time every year once you get enough subscribers haha
Great video. Would love to see you repeat this with some of the more exotic filaments like Polycarbonate and the Carbon Fiber blends.
This was brutal to watch.
Not gonna lie, resin printers are extremely good at getting the most out of plastics when it comes to durability and quality. I finally got myself one, but I bought one of those small cheap Chinese ones, even though it cant print out anything too big I'm quite happy with it. Also for someone lacking in space the fact that all my "filament" is a liquid resin means it take less space to store all the types of resin I have.
Thankyou
You can run the stepper control in an ISR that triggers on a clock at a set rate and then measure the load cell in the main loop from one Arduino. Could also do the opposite if you want consistently timed measurements.
1. use threads instead of this high torqued paracord roll
2. use 1 Arduino and take Measurements using Timer Interrupts
3. If using rolls for converting rotation into linear motion, reduce the diameter to a minimum and by that reduce the momentum on the shaft. Use the exact shaft diameter or increase the shaft diameter to be exacly the roll diameter or even bigger.
to graph with an arduino while stepping a motor can be accomplished with program "scheduler" now technically you can make it way simpler but its the same idea basically you always have the arduino doing something i like to program my projects based on cycles so as an example lets say you have your stepper program you have that run write down how many cycles it can do per second or have the arduino tell you through the serial port and do that for each major function you have so measureing, and stepping the motor in this case then you make a variable i usually have a basic function that takes a the previous cycle number and the maximum cycle period and if the number is greater or equal to the max it resets the variable to zero otherwise it adds one to the variable and returns the value then i have an if statement which checks if the variable that i wrote to earlier is greater then or equal to the cycle im looking for i find this method useful for tuning multiple functions ones that need to run more often and those that usually dont need that long you can combine this so that you have a function which steps the motor and a function that takes a measurement and prints it to serial and if the serial output is too slow you can increase how many cycles it takes to execute that code or if the motor takes too long to move lower the amount of cycles used.
Plastics example killed me😂
You can task switch with an arduino to do two real time operations (like stepping a motor and reading a sensor), but you have to be pretty tight with your memory.
I think MegunoLink could be used for controlling the motor and logging the stress data. With it, you can make control interfaces for your pc via serial with graphs and other menus
you should just be able to call the read commands for the load cell and write commands to the motor in the same loop, id have to look more into the arduino documentation to see if you could do this asynchronously but even as a synchronous action it likely would effect much because it would be synchronous to the clock which is that 16k crystal i think... goes fast
You could take a lot of bending load out just by lowering the test piece so it's tangential to the pulley
What tolerances do you use for you press fit 3D printed parts?
Hi, im really intersted to know is a gear could be made to withstand the use in side a aprilia rs123. the water pump and balencing sharft but not the gearbox its self. AP023443 plastic gear
what the fitting distance between parts you print at? .2mm?
The main problem I see with this is you haven't accounted for scale. Things need to support their own mass in addition to any load, which is why, for example, ceramic is often used for military-grade armour rather than metal. At the scales you're looking at, you also need to start looking at internal stresses; a Rupert's drop is a good example of how internal stress can _greatly_ affect an object's strength under load or impact.
Ah, you new age engineers. Need more processing power than all of NASA had available for the moon landings for this simple task that could be performed using basic hardware store components, without involving any electricity at all.
You should put a note in your description that this are affiliate links
Congrats on 3K subs… Uh, start printing a new gear😄
Bro that ain’t unusual that the crap I would do
Now you need 17900 get that (this is a joke)
Are you an engineering student by any chance?
Yeah! I have a degree in mechanical engineering and a minor in math, and I was one blow off class away from an emphasis in aerospace but I wanted to graduate haha
@@Sciencish That is great, certainly thought that. Great content, keep it coming. I myself am only months away from graduating in mechanical and manufacturing engineering here in Northern Ireland with Ulster University. I will give you a follow on all platforms, looking forward to seeing where curiousty takes you on this channel. Don't copy but do your own thing, you've got a natural curiosity needed.
@@Sciencish I wouldn't mind seeing that report that you mentioned, to read it at least, would that be possible?
Sadly no. It was for my capstone project, we continued work on a concept our professor made, so best to be careful what I show. It was a two phase cooling loop that used water under a vacuum instead of refrigerant. My section of the report was about the mounting components. It essentially boiled down to “3D printed parts are anisotropic, losing a large portion of their strength in tension perpendicular to the print plane.” So I designed all the mounting components to be under compression instead of tension. Also congrats on your upcoming graduation!
@@Sciencish I understand fully, no harm in asking. It sounds like a great project to have been involved with.
You Need bearings
I can never find just something that test strength between 3d printed parts and molded plastic!
If 3d printed is weaker, then what even is the point, apart from it being easier and less costly?
It's just about filament vs filament! Who cares!?
3d print a fgc-9 lol
Okay, but CNC Kitchen?
this guy did a different approach, why don't you just appreciate the effort? CNC Kitchen also started doing his own tests even if thomas sanladerer had good ones and he improved upon that
@@taha112498 I don't have to like every video a creator puts out and I don't think this video was very interesting nor that this machine is very useful.
You don’t have to like it and you have a right to your opinion and that’s fine, but given the size of UA-cam no matter what a creator puts out there’s probably someone who did something similar. To me it’s clear this dude is just simply enjoying his projects and how he puts them together. So whether it’s similar to another UA-camr or not he seems to put his own personality to every video.
I feel if you don't like something a creater did, then just keep it to yourself
@@gargert1433 And I feel like I don't care about what you feel I should do. How about if someone can't deal with negative feedback, they don't become a "creator".
Arduinos are really bad at doing more than one thing at a time. You need rtos or an esp32 or something
Plastic example. 🤣