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  Topic: reports from the front
korkskrew

Replies: 2164
Views: 487682

PostForum: WhipMag Discussion/Development   Posted: Wed Aug 05, 2009 9:25 pm   Subject: reports from the front
I'm not dead yet...

Just too busy to spend time on this stuff. Confused
  Topic: reports from the front
korkskrew

Replies: 2164
Views: 487682

PostForum: WhipMag Discussion/Development   Posted: Wed Jun 03, 2009 10:45 pm   Subject: reports from the front
Oh crap...I forgot to post that.

Basically the finer time resolution I used the smaller the excess energy became, so I think it was an artifact of the discontiuous nature of the model.

Someone s ...
  Topic: reports from the front
korkskrew

Replies: 2164
Views: 487682

PostForum: WhipMag Discussion/Development   Posted: Wed Jun 03, 2009 8:43 pm   Subject: reports from the front
If we both are thinking of the same motor, then I'll call it good enough.
  Topic: reports from the front
korkskrew

Replies: 2164
Views: 487682

PostForum: WhipMag Discussion/Development   Posted: Wed Jun 03, 2009 7:38 pm   Subject: reports from the front
No, I'm the one confused. Perendrev is right.
  Topic: reports from the front
korkskrew

Replies: 2164
Views: 487682

PostForum: WhipMag Discussion/Development   Posted: Wed Jun 03, 2009 5:57 pm   Subject: reports from the front
It looks more like a multi-layer version of a Minato motor. He worded the patent application as a perpetual motion machine, so the patent office will require an operating machine in order to consider ...
  Topic: reports from the front
korkskrew

Replies: 2164
Views: 487682

PostForum: WhipMag Discussion/Development   Posted: Wed May 06, 2009 2:27 pm   Subject: reports from the front
I have no objection to a Mylow motor section of the forum. It's just annoying to have to weed through Mylow posts to find the Whipmag posts.

Plus it's a little rude.
  Topic: reports from the front
korkskrew

Replies: 2164
Views: 487682

PostForum: WhipMag Discussion/Development   Posted: Tue May 05, 2009 8:06 pm   Subject: reports from the front
I haven't forgotten you CC. I'm sorry about my tardyness. I will get it to you...soon *shudder*
  Topic: reports from the front
korkskrew

Replies: 2164
Views: 487682

PostForum: WhipMag Discussion/Development   Posted: Tue May 05, 2009 12:52 pm   Subject: reports from the front
Why is Mylow's motor being discussed in the whipmag thread?
  Topic: reports from the front
korkskrew

Replies: 2164
Views: 487682

PostForum: WhipMag Discussion/Development   Posted: Mon Apr 20, 2009 9:39 pm   Subject: reports from the front
I solve that problem by not doing it all. It pisses other people off but I'm ok with that too. Twisted Evil
  Topic: reports from the front
korkskrew

Replies: 2164
Views: 487682

PostForum: WhipMag Discussion/Development   Posted: Mon Apr 20, 2009 2:39 pm   Subject: reports from the front
ROTFL!
  Topic: reports from the front
korkskrew

Replies: 2164
Views: 487682

PostForum: WhipMag Discussion/Development   Posted: Mon Apr 20, 2009 1:41 pm   Subject: reports from the front
@cc

Sorry I couldn't get to the spread-sheet model this weekend. My furnace died and I spent the weekend trying to keep my wife warm and buying/installing a new furnace.

I'll get to it soon.
  Topic: reports from the front
korkskrew

Replies: 2164
Views: 487682

PostForum: WhipMag Discussion/Development   Posted: Fri Apr 17, 2009 10:10 pm   Subject: reports from the front
I will only be able to model the magnets that are used in my FEMM model, so it won't be absolutely correct but it will give a pretty good idea about whether it's closer to 10:1 vs. 100:1.

I'm a lit ...
  Topic: reports from the front
korkskrew

Replies: 2164
Views: 487682

PostForum: WhipMag Discussion/Development   Posted: Fri Apr 17, 2009 9:27 pm   Subject: reports from the front
I'll see if I can gleen that from my Excel model this weekend.
  Topic: reports from the front
korkskrew

Replies: 2164
Views: 487682

PostForum: WhipMag Discussion/Development   Posted: Mon Mar 30, 2009 10:18 pm   Subject: reports from the front
I think at this point I'de be pretty happy if HE reproduced it.
  Topic: Magluvins oven. Whats cookin?
korkskrew

Replies: 507
Views: 132349

PostForum: WhipMag Discussion/Development   Posted: Mon Mar 09, 2009 7:08 pm   Subject: Magluvins oven. Whats cookin?
@ Harvey

It seems to me that flux is to a magnet as voltage is to a battery. It's just a force resulting from the properties of the object. Nothing is flowing or "going" anywhere
  Topic: WhipMag II
korkskrew

Replies: 783
Views: 181783

PostForum: WhipMag Discussion/Development   Posted: Tue Mar 03, 2009 12:13 am   Subject: WhipMag II
I have to give you props just for keeping up on all the details! You've clearly done your reading.
  Topic: WhipMag II
korkskrew

Replies: 783
Views: 181783

PostForum: WhipMag Discussion/Development   Posted: Mon Mar 02, 2009 9:20 pm   Subject: WhipMag II
Care to share any pictures or vids?
  Topic: reports from the front
korkskrew

Replies: 2164
Views: 487682

PostForum: WhipMag Discussion/Development   Posted: Tue Dec 02, 2008 3:23 pm   Subject: reports from the front

I think at this stage we would do well to write down what has to happen in this system in order for it to provide a gain.

I think this may be the wrong question. It seems to me the better questi ...
  Topic: WhipMag JavaScript applet
korkskrew

Replies: 123
Views: 46419

PostForum: WhipMag Discussion/Development   Posted: Thu Nov 27, 2008 3:34 pm   Subject: WhipMag JavaScript applet
I might as well throw this one over the transom, then:

Damn! Thanks!

Didn't know a math genius was watching. Wink
  Topic: WhipMag JavaScript applet
korkskrew

Replies: 123
Views: 46419

PostForum: WhipMag Discussion/Development   Posted: Wed Nov 26, 2008 1:53 pm   Subject: WhipMag JavaScript applet
I only know what is in the torque tables...

The peak rotor torque in the table is about 0.63Nm. The peak stator torque is 0.1Nm.

As we all know, magnets vary...but that should get you in the ba ...
  Topic: WhipMag JavaScript applet
korkskrew

Replies: 123
Views: 46419

PostForum: WhipMag Discussion/Development   Posted: Wed Nov 26, 2008 4:24 am   Subject: WhipMag JavaScript applet
YOU can do a GW sim. Just make one RPM positive and the other negative. Easy!

Or were you talking about the excel model?

The torque tables cover all possible angular orientations...that's why ...
  Topic: WhipMag JavaScript applet
korkskrew

Replies: 123
Views: 46419

PostForum: WhipMag Discussion/Development   Posted: Wed Nov 26, 2008 12:27 am   Subject: WhipMag JavaScript applet

Would anyone be interested in making some detailed torque measurements to verify the FEMM simulation? I could provide a set of key angular positions and only relative torque need be measured. It's j ...
  Topic: WhipMag JavaScript applet
korkskrew

Replies: 123
Views: 46419

PostForum: WhipMag Discussion/Development   Posted: Tue Nov 25, 2008 8:58 pm   Subject: WhipMag JavaScript applet
Wait'll you see the test rig I'm cooking up. Cool
  Topic: WhipMag JavaScript applet
korkskrew

Replies: 123
Views: 46419

PostForum: WhipMag Discussion/Development   Posted: Tue Nov 25, 2008 7:54 pm   Subject: WhipMag JavaScript applet
lostcauses,
I don't know...Al said that the GW stators make it easier to get AGW sync. Then he stops them after the first acceleration and it accelerates more. I just don't see them as much more th ...
  Topic: WhipMag JavaScript applet
korkskrew

Replies: 123
Views: 46419

PostForum: WhipMag Discussion/Development   Posted: Tue Nov 25, 2008 6:56 pm   Subject: WhipMag JavaScript applet
Not exactly. The torque tables take about a week to generate, and I'm not gonna. (but you could if you like...my FEMM model is public...see the links near the start of this thread)

Stronger or wea ...
  Topic: WhipMag JavaScript applet
korkskrew

Replies: 123
Views: 46419

PostForum: WhipMag Discussion/Development   Posted: Tue Nov 25, 2008 2:46 pm   Subject: WhipMag JavaScript applet
An interesting life lesson here...

I had given up on this model. I can't remember exactly why I decided to try again using excel, I think maybe it was becaus I was looking for a way to fill down t ...
  Topic: WhipMag JavaScript applet
korkskrew

Replies: 123
Views: 46419

PostForum: WhipMag Discussion/Development   Posted: Tue Nov 25, 2008 2:19 pm   Subject: WhipMag JavaScript applet
I was messing with the javascript model last night and found something I totally didn't expect.

I increased the MOI of the stator to the 0.00000032 number and it didn't change the behavior that muc ...
  Topic: WhipMag JavaScript applet
korkskrew

Replies: 123
Views: 46419

PostForum: WhipMag Discussion/Development   Posted: Mon Nov 24, 2008 9:24 pm   Subject: WhipMag JavaScript applet
It isn't lighter stators that is the trick. It is a very large difference in MOI. You could add a flywheel to the stator and it would still go as long as you added a much larger flywheel to the roto ...
  Topic: WhipMag JavaScript applet
korkskrew

Replies: 123
Views: 46419

PostForum: WhipMag Discussion/Development   Posted: Mon Nov 24, 2008 8:41 pm   Subject: WhipMag JavaScript applet
Wow...totally missed that thread. Shocked

So you came up with 0.00000032 Kg m and I estimated 0.00000025

Nope...not a factor of ten. But at least the difference is in the right direction. (e ...
  Topic: WhipMag JavaScript applet
korkskrew

Replies: 123
Views: 46419

PostForum: WhipMag Discussion/Development   Posted: Mon Nov 24, 2008 4:18 pm   Subject: WhipMag JavaScript applet
I believe you said you stripped some of the calculations (friction and such) out of your spreadsheet. Would you be willing to put those back in so we can compare different versions, with and without? ...
 
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