JB Zero Force Motor - anyone building?

[tinman]

Minoly:

I apologize I stand corrected on the one miliampere current draw of JB's pulse motor.  When I watched the clip and heard that number I was struck by how low it was but it didn't fully register.  I was not up to watching the clip a second time to check his figure.  But like Brad said, that is simply way too low of a current consumption figure.  We all have probably looked at hundreds of pulse motor clips and judging by size of his motor and the speed, the coil size, and the sense of how much power is being burned off to do what it does, there is no way that his motor is consuming one milliamp at 12 volts.  It just doesn't fit.  That is an example of the "reality disconnect."

Here is another example of a "reality disconnect" that I mentioned about two weeks ago:  If you buy a hand-held digital stopwatch, or use one on your phone, the one-hundredth of a second measurement makes no sense - it's a lie.  A human being is simply not capable of having a reaction time accurate down to one one-hundredth of a second.  That digit is pure junk, and yet many companies that make stopwatches do that to sell more product.

You mention "perception of reality."  You have to decide what is cut and dried, and what is perception when it comes to electronics and pulse motors.  In electronics, it's much more of a cut and dried thing than it is a perception of reality.



MileHigh

Brad:

I forgot to say I watched your "zero force" motor clip and it was pretty cool how you improved the timing and cut through to the truth.  Using the coil discharge to light an LED to show the rotor timing was pretty neat also.  I assume you recall the trick that TK did on his MHOP series of clips to show the start and end of the ON time for the MOSFET (or was it a transistor?)   

I havnt watched TKs MHOP video's(i dont think),but yes,you can use the flyback to see switch off timing ,and if i wanted to see switch on timing,then i would just put an LED the opposite way around(and in series with the correct resistor)on the driven coil.

As far as efficient pulse motors go,well it's like you said-->who is measuring efficiency?. Foot pounds of torque out for watts in,i would say an axial flux pulse motor would be the most efficient at converting electrical energy into mechanical energy.

[MileHigh]

More seriously politically incorrect death machines that you could get for your kids to have fun in!!!  And so cheap!  Even for 1969!

[MileHigh]

I havnt watched TKs MHOP video's(i dont think),but yes,you can use the flyback to see switch off timing ,and if i wanted to see switch on timing,then i would just put an LED the opposite way around(and in series with the correct resistor)on the driven coil.

Well, hopefully one day you will watch them.  He does some neat tricks with an LED as a strobe scope - and shows you how to make a neutron bomb.

[minoly]

Patrick---the only reason I deleted your comment was because you have your YouTube reply button turned off and I didn't agree with what you said.  I sent you a PM explaining why.

Cheers.  Lidmotor

Nice try but you did not delete the comment, you muted it. So it appears to me it is still there but is invisible to everyone else, kind of sly passive aggressive way of excluding people. I would not have known if it was not for a friend of mine pointing it out in a conversation we had about the comment I made he could not see.


Oh, I have not received a PM from you. Also, there are plenty of people who reply to my comments all the time, I know of no method to "turn off a reply button" to my comments.
here's the comment I made:
"I'm always amazed how long you can run your builds off of a supercap. [/size]So, sorry to say this and please correct me if I misunderstand you someplace, but this is not JB's Zero Force Motor. I'm not talking about the build or some little idiosyncrasy that I'm getting hung up on. There is one reason this is not Zero Force. hint - if it was Zero Force, you would not be able to run it on that circuit you have there. cheers - Patrick"[/size]





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[Lidmotor]

Patrick--
  YouTube has a funny thing going on with the comments section.  A friend of mine has the same problem with people adding a comment but there is no reply button to answer back.  I thought that I was deleting your comment not "muting" it.  Several videos ago you made a comment without a reply button and I sent you a message back then also.  The messages are at your YouTube channel.  There is a way to turn your reply button back on if you want.  The reason that I started to delete comments that offer no way to reply is that I thought that people were doing it intentionally.  I don't think that it is fair to post  comments that cannot be replied to.  Sorry.  Check your messages at your channel.  No harm meant.  We have known each other a long time.
  Here is a short tutorial on how to enable your YouTube reply button:
https://www.youtube.com/watch?v=2FpoLl9r2mw
  Here is a video by Ben (K4ZEP) from a year ago where you posted a comment also --with no reply button;
https://www.youtube.com/watch?v=Su-v45BsFpI

MileHigh--
  Here are the 'Lads' with Maggie.  I have the Bruce Dern movie Silent Running' on VHS and have watched it many times. It is a classic.