There are plenty of videos that explain this. Just type in CZcams something like: "bldc foc driver". You can also check out this website: tinymovr.com/
I’d guess that it’s hall sensors, though if it’s an external encoder it may be absolute instead of quadrature, since absolute position is pretty handy for robotics. It’s not a stepper so it can’t really be driven open-loop, and back-emf is poorly suited to low-speed cases. Could also be analogue.
In this particular case, it's mostly the ball bearings inside the motor (amplified by the vibration of the table under the motor). In reality, it's actually very quiet.
Have a biesse 342 with broken servodrives but servos works great. They are 290v dc brushless. Do you think could be done with some type of h bridge or something?
How is the cogging torque with this motor? The motion is impressively smooth. I've run into pretty high cogging torque with the iron-core Maxon motors in the past.
Woo look at the background how good and Clean space is it !
Thanks for noticing!
@@OleksandrStepanenko so clean it could be cgi... xD
Now I want to see a brushless 3d printer that prints stupidly fast
I think I've seen it somewhere before.
Vez3d did one with o-drive esc's. It is fast, but not that precise as steppers
Can you make a video explaining how to control and the number of its cycles
It uses an encoder and keeps track of the position. Probably a hall effect sensor. The PCB right of the BDC monitor is the encoder.
How? Can you give more info about the motor controller/motor used here?
I would love to see more detail as well! This is exactly the kind of setup I've been looking for
Added a link to the description.
@@evanbarnes9984 Added a link to the description.
@@OleksandrStepanenko awesome, thank you! Love your work
@@evanbarnes9984 Thank you!!!
Congratulations
Thanks!
Can you make a video explaining this much precision
There are plenty of videos that explain this. Just type in CZcams something like: "bldc foc driver". You can also check out this website: tinymovr.com/
how much power of this bruchless motor ? please
explain the setup 👉👈
What’s the prototyping workflow like? I think those are 3D printed brackets, but the PCB is what I’m more interested in, same for any CNC machining.
Added a link to the description.
Impressive controls! Quadrature encoder or all in the brushless motor controls?
I’d guess that it’s hall sensors, though if it’s an external encoder it may be absolute instead of quadrature, since absolute position is pretty handy for robotics. It’s not a stepper so it can’t really be driven open-loop, and back-emf is poorly suited to low-speed cases. Could also be analogue.
Absolute encoder.
Is there an encoder or something? Brushless motors don't do slow speed so smoothly
Absolute encoder.
in the middle, does it rotate contunuously or oscillate back and forth?
Back and forth.
Love your work! Is this the motor system you use for your robots?
Cómo lo haces?
I've always wondered, where does the noise come from? Imbalance? One of the electrical components?
In this particular case, it's mostly the ball bearings inside the motor (amplified by the vibration of the table under the motor). In reality, it's actually very quiet.
Have a biesse 342 with broken servodrives but servos works great. They are 290v dc brushless. Do you think could be done with some type of h bridge or something?
you should definitely try! Just get a Tinymovr
А точность-повторяемость пробовали проверить? Интересно га что такой двигатель способен.
How precise is that encoder? If it doesn't use one of those, what does it use?
It uses an absolute magnetic encoder. You can see the precision in this video: czcams.com/video/r5FCMSFGZQs/video.html
How is the cogging torque with this motor? The motion is impressively smooth. I've run into pretty high cogging torque with the iron-core Maxon motors in the past.
It's quite low for this motor. Much lower than similar motors I've tested.
@@OleksandrStepanenko Thats great, lower than similar motors from Maxon? What is the model number?
Ping!
Also can you tell us how you convert these absolute encoder output to the positional one after gear reduction?
How
Does the BLDC motor have 12 poles?
this one has 4 pole pairs
Do these motors have brakes? What about inertia? It's taken into account?
No brakes. Inertia can be taken into account by adjusting acceleration and deceleration.
@@OleksandrStepanenko So, to stop it at the same position, the controller takes inertia into account inherently right?
@@ChillGuy511 Indirectly yes.
@@OleksandrStepanenko so cool! I'm just getting into robotics. And channels like you are awesome! Thanks!!
@@ChillGuy511 Thanks!:)
what is that driver...
Added a link to the description.
@@OleksandrStepanenko haha thank you sir