PCB Motor 2-Wheeled Robot (Part 3/3)
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- เผยแพร่เมื่อ 24 พ.ค. 2022
- Part 3 of my Tiny 2-wheeled PCB Robot Build!
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This project is Open-Source and licensed with Creative Commons Attribution Share Alike 4.0 International License
#Robotics
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Other Videos Related to this Project:
Making PCB Motor v4 - • Making PCB Motor v4
PCB Motor Wheeled Robot v1 - • PCB Motor 2-Wheeled Ro...
PCB Robot In-Wheel Rotor Optimisation - • PCB Motor 2-Wheeled Ro...
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Not many people show the actual design process for such projects, but you do. And that's what differentiates you from the crowd!
Thanks! 🙂 I try to keep the engineering really as much as possible
Hence I subscribed him scince 3 years
👍
After all. That's what it's all about.
It begins with tiny robots for TH-cam videos, next thing you know Carl has taken over Malta with his army of tiny robots and is planning his next conquest.
🤣
@@CarlBugeja Only thing currently stopping the conquest: slight inclines
A really great display of the culmination of all the hard work you have put in Carl! Looking forward to more amazing PCB Robots!
thank you! 😊
@@CarlBugeja tbh best build yet it looks like the parot jumping sumo maybe put on a camera like an fpv one for exploring in small spots
4:27 look robot is happily wagging its tale :)
I wish I was an adorable tiny robot shredding at the skate park.
Using a pcb as a motor is very interesting. Could be very useful in an education setting
This is a great project. I'm looking forward to further generations of this robot.
Gotta bring this out onto the field for an FRC match
There is some state of art engineering going on.
You can also 2x the torque by adding a second stator to the outside of the wheels. Using 2 sets of stator coils in an upside down U shape straddling the wheel also gives you the chance to use 2 bearings mounted in the stator pcb and a short axle that is attached to the wheel like on a bike. This will give you rigidity and power. Another option for even more power and stability is a 3rd wheel instead of a simple tail. It will have lower friction and wont snag while also allowing you to add 2 more stators. In total you would have 6 stators instead of 2 giving you roughly 3x the power but only a tiny fraction more weight. You can use the tail as an antenna so you increase the range that you can control the robot.
Sorry to be the bearer of bad news, but that actually only increases around 70%.
Physics black magic, don't ask.
Great project, though your header switch is a bit silly. Just use a soft power IC and a teeny tiny button. Or even better, trigger it with a hall effect sensor. Best button is no button.
The 4 wheel design looks sick!
Next video he'll be doing sick tricks in the skate park! Or at least making skaters' trip on their face.
3:29 This is HUGE !! (battlebot pun intended)
Is it weird that I find the little robot utterly adorable and cute? LOL 😁
Awesome designs and I love watching you go through problem solving so methodically and seeing what neat experimental ideas you come up with! What a fantastic little project to do! :) Can't wait to see more tiny robots in the future!
New logo is sweet
Magnets are already very big, but copper in the PCB is very little. Need to improve that and torque will increase significantly.
It is crawling like a old grandmother 😜😜... Good gadget...
Great ingenuity and fine craftsmanship ! A wonderfull piece of engineering art !
Cool. Now it needs a camera and an LED lamp so you can use it to search for lost items under the couch.
You should look into piezoelectric SQUIGGLE motors. They're quite fascinating!
2:15 You can also provide a key that shorts out VBAT and GND, and turn it into a little bomb.
O-rings for traction and lower weight than tpu. Steel backing amd mayb core for the flux. Shall make all of a difference. For core you might get away with solid steel as long as the rpms are low.
This is amazing work Carl! Tip of the hat to you mate! I'd love for you to collab with James Bruton, bet you two together could make some awesome robots! There's some really cool engineering going here!
That would be cool! 😁
This is excellent work! Love to see what you come up with next! 🎉Thank you so much for your contributions to the community and sharing this level of knowledge with the world! 🙌🔥 Love to see more robotics applications and pushing the boundaries of what PCBs can really do! Kudos!💯
An #altium subscription would be nice. However, in the meantime, I would just like to point out that a lot of issues you are facing could possibly be mitigated with added environmental sense capability and some code. Assuming that fits your goals.
please put this in a modelrocket and have it do a small scale cansat mission XD
Excited for the 4wd
add a couple of sensors to make a little robot
ROBOT: a machine resembling a human being and able to replicate certain human movements and functions AUTOMATICALLY. You built a tiny remote control vehicle.
Maybe using #altium you could build modern FemtoSumo class robot (10x10x10 mm) using flex PCB's :). I've made one few years back but it was hand soldered with connections made by coil wires without any PCB :D.
gorgeous logo and extremely happy to see you again, i cant wait to see your next designs and videos!!!!
you could add a secondary set of magnets and coils to each wheel on the outside.
can also weigh down the bottom for better stabilisation, but i like the tail.
Great project!
I think the big challenge hurdle now is to get sinewave commutation on your motors and better back emf feedback, maybe even throw a small hobby brushless 6A esc on them and see what happens? Perhaps sinewave VESC, ODRIVE, or hall sensor / encoders? lots of things to try and improve this. Teeny tiny brushless axial flux motors just don't exist on the market aside from CD drive motors and the like, yours is the first I've seen!
Suggestion:
A PCB Curiosity replica.
We missed you bro ❤️, always great ideas/great project
Man... your stuff's amazing... thank you!
This seems like a wheely good project, i do wonder about using standard motors instead, just as a comparison, to better illustate the low torque you mention, but show benefits of your PCB motoes (be it things like weight and size)
the sphero ollie is a good example of what your describing
Tail formfactor could make good antenna !
looks like you could put it inside a film canister for storage/travel.
TINY AIRBOAT! The low torque PCB motors might lend themselves well to a tiny boat! 😁 #altium
That is coming together really well! It's amazing to see the progress from the first version to this one. Maybe using a slightly softer plastic in the wheels can increase it's grip and make it easier to drive on soil. Also, you could turn into a triangle - I believe that could be a good idea since because it's got three points of support, it would almost always (except in extreme conditions) form a plane and that would increase the stability of the robot. A 4-wheeled design could bring some advantages but could also introduce to much weight and make really unstable and hard to control, since any deviation or missalignment could make it super wobbly and also tend to turning to one side. Thanks for the amazing video Carl, looking forward for the next one! #altium
This is so cool! You could add an iron core to the coil to boost the magnetic field strength locally!
All your effort is paying off congratulations
Yeah buddy, light weight!
Love the new logo!
Awesome work buddy. It looks amazing.
A opensource PCB Drone will be nice for the channel ;)) With normal motors of course ..... or for your experience with Flex PCB you can make a plane with all commands ( ailerons ,rudder, elevator ) made with magnets and coils #altium
looking forward to see that
i too would love to see this
Congrats for winning the giveaway! :) Your comment with has the most #altium likes so far (i just sent you an email with the details) i have tried using this motor for a drone in the past, but it didn't have enough torque to rotate a propeller at high speeds but i defined need to recheck after all the updates i've made :)
@@CarlBugeja Thanks for the giveaway ! To make a drone with integrated PCB motors is hard but i think is doable , " big " diameter motor and a low pitch / big diameter propeller .
Awesome concept 😁👍
The 4 wheeled version in the model looks very promising. Look at dirt-bike tires, the nodules mitigate softer terrain much better.
If you can add FOC(field orientated control) you can get more control and more torque, so the wheel size can be increased a little bit. So you can add a bigger battery for more stability
Amazing work Carl !
You might be able to increase the weight of tjr bottom section enough that the tail or wheel isn't needed. This could also help with traction for climbing small ramps!
Excellent job well done. Your progress is fantastic.
I have watching from the beginning and for a long time I see you always excel along the way. Progress is Progress and doing a fantastic job.
next... give it a tail/wheelie bar/solar cell/trailer thingy =D
i would love to apply this the the tiny fpv tank would be awesome
You should make the tail a antenna for better range.
Nice robot for a swarm :D on flat surface
this project is really really serious and very useful in robotics you are optimizing the system on every iteration. What a great work congratulations!.. keep going #altium
Great video! I've been very curious about a tiny robot that could fit inside a ping pong ball (more realistically a larger ball) to control where it rolls.
this is the coolest video that i have seen!
As an FYI the Cypress module cut out pattern is considered a minimum. You shouldn't close back in around with ground planes once you maintain the 4mm in each direction, that's just the minimal acceptable performance. If you check their app note 96841it wastes space and diminishes RF performance. You'll likely gain some meaningful dB if you moved it to the edge. You'd enlarge the ground plane and cause less shielding of the signal. Not that you've complained about RF performance but it's almost always best practice to put those modules at board edges.
Could you make a book with coils inside each page so it can open itself to the right page? #altium
that would be cool 🤣but the magnets would make it a little bit bulky for the pages to open and work properly
@@CarlBugeja im not an expert on this, but i think ferrite cores would have to be used (to avoid magnets stick the pages together) and then just have the coils fields oppose each other where you want the book to split and attract each other where you want the pages to stay together
Connect the coils of all pages in series.
Connect both ends to ground.
Connect every point between coils to positive voltage through a transistor.
Drive the one transistor where you want the book to split.
The coils on one side will be magnetized in one direction, on the other side in the other direction.
Maybe you could scavenge some clock mechanisms to boost torque by gear reduction. Then you could run your motors at higher speed, which might be more efficient. Consider getting a Sherline lathe, too.
Woah that's amazing
Make a drone using that pcb motor!
Love the new logo!!
Would love to see on of these motors, and maybe even a robot, that is specifically designed for speed.
if possible make a tiny reduction box, maybe a superfine planetary to increase the torque without excessive battery drain
Maybe you can make a camera to mount in the robot, like in rainbow six siege, they have these little robots, which can do reconnaissance in the game, but I think it would be cool to see something like that in real life
Amazing robot! Quick question: Are the magnets in the wheels arranged as a Halbach array?
perhaps you can design a gear system on each wheel to prevent them from being back driven and give them more torque. only issues is it will increase the thickness of the motors and you must increase the speed as well
I think that you should print with the resin printer, it will be much better.
Is so tiny and cute :3 i love it
Epic stuff!
You should use a mini harmonic gearbox
but if you put the caps of the aerosol bottle as wheels (one wheel of which also covers up to 45% of the main robot's body (which remains inside the "cap"/wheel). To move better on the terrain.
(higher rubber rings at the ends of the cap for the wheels and a lower pattern in the middle)
I'm really interested in small actuators. I'm just waiting for some pancake solenoid PCB coils I designed to arrive from the fab.
Carl, you could use tiny servos but modified, you modify it to continuously rotate, and don't stop at the end of it's rotation limit
Could you angle the wheels so that they work against each other a bit and use that force to make it more stable?
I wonder if you made this design a little more stackable you could drive a much bigger vehicle, like say one you could ride around on.
The low torque of the motors would benefit from smaller wheels, but then you have limited battery and electronics size. You could also employ the motor in a different application where you could benefit from a low torque and high speed. Are you using any sort of active sensing of the angle, even if only back EMF? It might help to get even a little extra torque. #altium
It's like a hoverboard for legos almost
Make a magnet attachment to the tail and create a little robot train 🤖🚂😁
Try reducing the battery capacity a little to reduce the weight enough to climb uphill #altium
Well, now you can make bunch of these and connect them with a magnetic latch. It will look like a little train
#Altium can make the motor have more poles to increase the torque and give you power on the wheels but it gets rubbery
Awesome video! I wish I could learn hardware programing but don't have any time for it now
Thanks! It's really fun 🙃 I promise you won't regret it
Excelente! 👍
u should monitor the position of the rotor so u can better predict wich coils to turn on
You are cool!
You should add an FPV camera!!🙏🙏#Altium
My biggest recommendation would be to use a multilayer board for the motor and use the layers to create a better "coil" for the motor... I'm not sure if connecting all the layers in parrell vs using via's to segment each layer together in series would yield better results. A mutilayer board would be thicker and may provide more support for the magnets/wheel assy. It maybe worth trying even with a single layer board, where you have traces on both sides to make the magnetic field.
You could make the tail an induction coil for charging. Like a platypus haha. Do you think it's possible to make a coil that can both charge and switch over to detect metal?
So, the goal was to make a tiny robot and limit the space motors took, but what if you took the PCB motor idea further? Make them bigger without a robot size constraint?
Have you tried multi-layer pcbs for the electromagnet coils?
You need to improve the magnetic flux density for bigger torque at the same diameter, meaning you either need more coil turns (assuming same current flow) and/or add mild steel backing to focus the flux leaking past the coils #AltiumGiveaway #Altium
You should incorporate solar power!
i defiantly want to try that! :)
Well, i'd suggest slapping some flame stickers on it, and print it in blue and red #altium :D
Mini submarine? Maybe it's easier to float
Great Work Carl you can use multilayer pcb for the coil and try out alternate lighter battery types, and also solar panels with super capacitors.#altium