Authors Posts by Tyler

Tyler

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jacquesm comments on “Open source motor controller turns cheap motors into powerful servomotors”

Stepper speed can be quite impressive with the right driver, still not up to servo levels but much higher than you might think possible, it is all about getting to and past the resonance points in the motor and the whole dynamic assembly. Once you can do that steppers can run quite fast.

As for torque, servos again have the edge, but there are pretty large steppers too (1″ shaft…).

If you drive steppers with a standard H-bridge you will never get close to what that stepper can do, driving stepper motors to their potential is a black art where at some point during the operational domain you’ll be taking energy out of the motor rather than putting it in in order to get past the resonance point. There are companies that specialize in such high speed drivers (Berger-Lahr and RTA for instance), they’re not cheap and by the time you’re done making this work you might as well install a servo system.


link

jacquesm

Source:
https://news.ycombinator.com/item?id=14280190

jacquesm comments on “Open source motor controller turns cheap motors into powerful servomotors”

Stepper speed can be quite impressive with the right driver, still not up to servo levels but much higher than you might think possible, it is all about getting to and past the resonance points in the motor and the whole dynamic assembly. Once you can do that steppers can run quite fast.

As for torque, servos again have the edge, but there are pretty large steppers too (1″ shaft…).

If you drive steppers with a standard H-bridge you will never get close to what that stepper can do, driving stepper motors to their potential is a black art where at some point during the operational domain you’ll be taking energy out of the motor rather than putting it in in order to get past the resonance point. There are companies that specialize in such high speed drivers (Berger-Lahr and RTA for instance), they’re not cheap and by the time you’re done making this work you might as well install a servo system.


link

jacquesm

Source:
https://news.ycombinator.com/item?id=14280190

jacquesm comments on “Open source motor controller turns cheap motors into powerful servomotors”

Stepper speed can be quite impressive with the right driver, still not up to servo levels but much higher than you might think possible, it is all about getting to and past the resonance points in the motor and the whole dynamic assembly. Once you can do that steppers can run quite fast.

As for torque, servos again have the edge, but there are pretty large steppers too (1″ shaft…).

If you drive steppers with a standard H-bridge you will never get close to what that stepper can do, driving stepper motors to their potential is a black art where at some point during the operational domain you’ll be taking energy out of the motor rather than putting it in in order to get past the resonance point. There are companies that specialize in such high speed drivers (Berger-Lahr and RTA for instance), they’re not cheap and by the time you’re done making this work you might as well install a servo system.


link

jacquesm

Source:
https://news.ycombinator.com/item?id=14280190

jacquesm comments on “Open source motor controller turns cheap motors into powerful servomotors”

Stepper speed can be quite impressive with the right driver, still not up to servo levels but much higher than you might think possible, it is all about getting to and past the resonance points in the motor and the whole dynamic assembly. Once you can do that steppers can run quite fast.

As for torque, servos again have the edge, but there are pretty large steppers too (1″ shaft…).

If you drive steppers with a standard H-bridge you will never get close to what that stepper can do, driving stepper motors to their potential is a black art where at some point during the operational domain you’ll be taking energy out of the motor rather than putting it in in order to get past the resonance point. There are companies that specialize in such high speed drivers (Berger-Lahr and RTA for instance), they’re not cheap and by the time you’re done making this work you might as well install a servo system.


link

jacquesm

Source:
https://news.ycombinator.com/item?id=14280190

jacquesm comments on “Open source motor controller turns cheap motors into powerful servomotors”

Stepper speed can be quite impressive with the right driver, still not up to servo levels but much higher than you might think possible, it is all about getting to and past the resonance points in the motor and the whole dynamic assembly. Once you can do that steppers can run quite fast.

As for torque, servos again have the edge, but there are pretty large steppers too (1″ shaft…).

If you drive steppers with a standard H-bridge you will never get close to what that stepper can do, driving stepper motors to their potential is a black art where at some point during the operational domain you’ll be taking energy out of the motor rather than putting it in in order to get past the resonance point. There are companies that specialize in such high speed drivers (Berger-Lahr and RTA for instance), they’re not cheap and by the time you’re done making this work you might as well install a servo system.


link

jacquesm

Source:
https://news.ycombinator.com/item?id=14280190

jacquesm comments on “Open source motor controller turns cheap motors into powerful servomotors”

Stepper speed can be quite impressive with the right driver, still not up to servo levels but much higher than you might think possible, it is all about getting to and past the resonance points in the motor and the whole dynamic assembly. Once you can do that steppers can run quite fast.

As for torque, servos again have the edge, but there are pretty large steppers too (1″ shaft…).

If you drive steppers with a standard H-bridge you will never get close to what that stepper can do, driving stepper motors to their potential is a black art where at some point during the operational domain you’ll be taking energy out of the motor rather than putting it in in order to get past the resonance point. There are companies that specialize in such high speed drivers (Berger-Lahr and RTA for instance), they’re not cheap and by the time you’re done making this work you might as well install a servo system.


link

jacquesm

Source:
https://news.ycombinator.com/item?id=14280190