Has anyone seen Lasersabers new motor runs on 1000uf cap

[schuler]

  Hi LS ,
I must say that it's an amazing piece of engineering. Plus the effort to make it thru a 3D printable spec so everyone can easily reproduce and test it's spectacular.

Thank you so much for sharing.

LS, have you done any power consumption measurement? Have you tried to put it on scope?

Someone talked about diodes in this thread. In the case someone in this thread would like to experiment LS design with diodes, I would recommend germanium diodes.

Thank you for sharing 

[wattsup]

@LaserSaber (posted on LS web site as well)

I think if you can find a germanium diode and point it towards the capacitor, it may help in increasing the motive force of the wheel. Since the capacitor has no diode and the motor contact is done via the reed switch, this indicates that the coils-cap-reed are probably all in series. Caps discharge on connection and inductors (coils) discharge on disconnection. I think the energy being sloshed around is much higher then what you see, (shown by the torque) but because the capacitor does not have a diode, it is simultaneously in continuous charge and discharge state. With a diode pointing to the capacitor, it may cut half a cycle to charge but that half cycle will still be consumed by the coils and the other half cycle that does charge the cap may be of higher final voltage that could not be captured without a diode because the whole system is running in an rms mode where everything is levelled off to the least consuming state, which is also the least producing state.

Not 100% sure but I am sure it would have to be a germanium diode (only .2 volts loss) and the effect will surely be interesting to learn from. Even trying a diode placed in series between the half way point of the series coils may provide another effect of interest. Or, just tapping the diode at the coil half way point and point to the capacitor.

Cascading coils does not necessarily rely on the precise replication of the build but the overall set-up can be duplicated in many ways. Again I tried to explain this to Romero, telling to put his top and bottom coils in two series. Anyone with a Romero wheel can try that right away.

So many ways to learn about effects when the base process is stable as you show now.

wattsup

PS: But........first of all........ enjoy your vacation!!!!!!!

PS2: @schuler

Yes is should be germanium but even with germanium diodes, they are not all the same reaction so the best thing to do is make a diode carousel and test many models as the wheel is turning. One diode may outperform the others by 2 or more times greater.

[gyulasun]

I don't understood something : does this motor run on 1000uF cap for 50 minutes and HAS TORQUE ?

Hi forest,

Yes.  its rotor has torque.  I would like to understand what you do not understand...   

I assume the long run time would decrease gradually as you would try to utilize its torque.  The mass of the rotor together with the weight of the 6 magnets is the "useful" load at the moment as shown in the video (and of course the air drag of the rotor).

Gyula

[DreamThinkBuild]

Hi LaserSaber,

Excellent work.

Here is a way to improve torque, angle the magnets and coils so that the force is pushing over the center line of the rotor. In this picture it is angled 30 degrees from center the coils are also angled the same degrees just translated outwards from the center of each magnet. You can change the angle to whatever you want. The goal is just to get the force to push over the center instead of at the center.

Looking forward to your next design.

Edit: It's actually 30 degrees for each magnet in this setup. 360/12.

[Magluvin]

Hi forest,

Yes.  its rotor has torque.  I would like to understand what you do not understand...   

I assume the long run time would decrease gradually as you would try to utilize its torque.  The mass of the rotor together with the weight of the 6 magnets is the "useful" load at the moment as shown in the video (and of course the air drag of the rotor).

Gyula

"The mass of the rotor together with the weight of the 6 magnets is the "useful" load at the moment as shown in the video (and of course the air drag of the rotor)."

And the drag of the straw.     

It seems as though what ever rpm it is set to run, the caps voltage adjusts accordingly.  If the straw drag were another generator that slowly charged a cap for periodic pulse discharge, maybe it could be made to increase in rpms on its own. I dunno. Im patiently waiting for directions for the build. Hopefully it comes soon. Im getting impatient. lol     Knowing what LS has shown in the past, this one has my attn more than ever.

Dreamthinkbuild,

I have used a coil at an angle like that with a motor that was pushing the mags and it did produce more rpms. The mags were straight though. So the coil was pushing on the magnets field in the direction of rotor motion, instead of pushing/squashing it against the rotor.

But here we have 6 mags and 12 coils. Mags are all the same polarity and the coils are alternating polarity. So the coils, 2 of them can act on a rotor mag at the same time, pulling and pushing=more torque. Im not sure it would be good to angle the 2 coils toward each other, but anything is possible. I would only try after a working model is made and then experiment beyond.

Mags