man....i should play this when i lay down in my bed.....im sure i'd be asleep after a minute...or two....yawn....he reminds me of an old college tutor i had...he had a monotone drawl and used to send me to sleep, absolutely nuthin i could do about it...he he...
I like the video. I'm just starting to learn about electronics and tinkerwith things. I saw this and loved it ,now I want to try to make one. can I run this wthout the computer ?
Dont' forget to include a "two-phase on" intermediate step, especially at low speeds. Most machine tools mid 80s to mid 90s used digitally controlled steppers... "cogging" has to occur at some speed/load combo... now it's series or pm motors usually pulse-dc controlled - smoother and precise enough when used with lots of position feedback. Enjoyed the vid!
A high voltage with a swamping resistor in series with steping coils makes a more constant current and more snap but wastes a lot of energy so may not be wanted.
.
I think you will find to change your software to percentage ( of the period) pulse width to accomodate easier software "playing" That way only one input figure will need to be adjusted to ramp speeds up and down. You will find the pulse width will also lower noise factor generated by "tuning"
Dave there are a few e bike enthusiast that would like an inexpensive way to use an alternator as a bike motor. The quest I guess is to get the optimal torque on take off or start up and the optimal rpm to reach a good city speed 20 to 30 mph with out having to use jack shafts and belt drives and do it with motor controllers. Right now off the shelves models like i-zip e-zip run between 375.00 to 1000.00 preform about 18 mph for about 15 miles then its a 6 to 8 hour charge to take off again.
Wow , finally someone seems to know his stuff, of course none of these things are economical applications, but to see someone with proper concepts about these things on YouTube is becoming rare. Almost everyone else is smoking something and just wanting more views.
hey dave i want that schmatic diagram for the stepper circuit. i love it. i used your vid to help explain what i could not to one of my subscribers. thanks
WOW Im usualy doing the opposite with my studies. This is realy pretty neat. I believe if you can aquire a ring speaker magnet off of a large speaker. it will fit inside of the rotor in place of the windings. top half being nonsalent and the bottom being salent will magnetically charge the fingers of the rotor for you with out the added 10 watts of rotor energizing. definitely 5 stars and a subscriber to me. MUDD
Hello there, I have got a normal car alternator and bypassed its diods, I only would like to use one phase to get it spin, I am intereseted in a fix relatively high speed, which ESC controller should I get? Thanks
dude, you need to sense the position of the motor, either with sensors or sensorles through back emf. you might as well just buy a brushless-motor controller for radio controlled models.
man....i should play this when i lay down in my bed.....im sure i'd be asleep after a minute...or two....yawn....he reminds me of an old college tutor i had...he had a monotone drawl and used to send me to sleep, absolutely nuthin i could do about it...he he...
turtlezed 3 months ago
I like the video. I'm just starting to learn about electronics and tinkerwith things. I saw this and loved it ,now I want to try to make one. can I run this wthout the computer ?
imtheone2b 6 months ago
Dont' forget to include a "two-phase on" intermediate step, especially at low speeds. Most machine tools mid 80s to mid 90s used digitally controlled steppers... "cogging" has to occur at some speed/load combo... now it's series or pm motors usually pulse-dc controlled - smoother and precise enough when used with lots of position feedback. Enjoyed the vid!
mowrman100 6 months ago
un saludo daveti esta muy interesante su trabajo un saludos
regiomontano50 9 months ago
how would this work with those permanent mag alternators sold for windmills.
this is amazing.. direct drive car wheels..
josephdupont 11 months ago
how would this work with those permanent mag alternators sold for windmills.
josephdupont 11 months ago
Nice presentation!
A high voltage with a swamping resistor in series with steping coils makes a more constant current and more snap but wastes a lot of energy so may not be wanted.
.
I think you will find to change your software to percentage ( of the period) pulse width to accomodate easier software "playing" That way only one input figure will need to be adjusted to ramp speeds up and down. You will find the pulse width will also lower noise factor generated by "tuning"
Best of luck!
larryllix 1 year ago
Dave there are a few e bike enthusiast that would like an inexpensive way to use an alternator as a bike motor. The quest I guess is to get the optimal torque on take off or start up and the optimal rpm to reach a good city speed 20 to 30 mph with out having to use jack shafts and belt drives and do it with motor controllers. Right now off the shelves models like i-zip e-zip run between 375.00 to 1000.00 preform about 18 mph for about 15 miles then its a 6 to 8 hour charge to take off again.
thetexaszone 1 year ago
Thanks for the informative and detailed demo.
MichelleDri 1 year ago
2:55 dude Thats a flux capacitor!
SsjSned 2 years ago
@SsjSned 1.21 gigawatts!!!
pyroboy08 1 year ago
Wow , finally someone seems to know his stuff, of course none of these things are economical applications, but to see someone with proper concepts about these things on YouTube is becoming rare. Almost everyone else is smoking something and just wanting more views.
Georgieporgie1 2 years ago
hey dave i want that schmatic diagram for the stepper circuit. i love it. i used your vid to help explain what i could not to one of my subscribers. thanks
mudd
muddymuddymuddmann 2 years ago
WOW Im usualy doing the opposite with my studies. This is realy pretty neat. I believe if you can aquire a ring speaker magnet off of a large speaker. it will fit inside of the rotor in place of the windings. top half being nonsalent and the bottom being salent will magnetically charge the fingers of the rotor for you with out the added 10 watts of rotor energizing. definitely 5 stars and a subscriber to me. MUDD
muddymuddymuddmann 2 years ago
Hello there, I have got a normal car alternator and bypassed its diods, I only would like to use one phase to get it spin, I am intereseted in a fix relatively high speed, which ESC controller should I get? Thanks
iambrus 3 years ago
stepmotor.cool.I have the same idea.
currentmachine 3 years ago
dude, you need to sense the position of the motor, either with sensors or sensorles through back emf. you might as well just buy a brushless-motor controller for radio controlled models.
with that you can get much better performance.
ENNNNN 3 years ago 2
Very informative. Looking forward to the next one.
trueztruth 3 years ago