Re: [Vo]:BB motor -- explanation (maybe not!)

2009-09-03 Thread Horace Heffner
Nice video! Text plus multiple scenes. You must have a video editor of some kind. I'm surprised the thing held together that well, considering the imbalance from the U bolts. It certainly does demonstrate the motor works in that configuration I like your motto! Best regards, Horace Hef

Re: [Vo]:BB motor -- explanation (maybe not!)

2009-09-03 Thread Harry Veeder
- Original Message - From: Kyle Mcallister Date: Thursday, September 3, 2009 10:52 pm Subject: Re: [Vo]:BB motor -- explanation (maybe not!) > --- On Thu, 9/3/09, OrionWorks - Steven V Johnson > > > > > Yes! > > > > I second that. > > > &g

Re: [Vo]:BB motor -- explanation (maybe not!)

2009-09-03 Thread Michael Foster
I'm lovin' it! Nice work. M. --- On Thu, 9/3/09, Kyle Mcallister wrote: > From: Kyle Mcallister > Subject: Re: [Vo]:BB motor -- explanation (maybe not!) > To: vortex-l@eskimo.com > Date: Thursday, September 3, 2009, 7:52 PM > --- On Thu, 9/3/09, OrionWorks - > St

Re: [Vo]:BB motor -- explanation (maybe not!)

2009-09-03 Thread Kyle Mcallister
--- On Thu, 9/3/09, OrionWorks - Steven V Johnson > > > > Yes! > > I second that. > You got it. http://www.youtube.com/watch?v=H-CQRSHkci8 GENTLEMEN! I give you... this THING! Yeah, it's a terrible, and probably quite boring video. And the hands holding the contraption belong to yours truly.

Re: [Vo]:BB motor -- explanation (maybe not!)

2009-09-03 Thread OrionWorks - Steven V Johnson
>> Anybody want to see a video of this sorry-assed thing? >> >> --Kyle > > Yes! I second that. Regards Steven Vincent Johnson www.OrionWorks.com www.zazzle.com/orionworks

Re: [Vo]:BB motor -- explanation (maybe not!)

2009-09-03 Thread Harry Veeder
> Anybody want to see a video of this sorry-assed thing? > > --Kyle Yes! Harry  

Re: [Vo]:BB motor -- explanation (maybe not!)

2009-09-02 Thread Horace Heffner
Also of possible related interest is that I tried a regular steel ball bearing and a stainless ball bearing on the same aluminum shaft and it appeared the torque was abut half that for two steel bearings. Best regards, Horace Heffner http://www.mtaonline.net/~hheffner/

Re: [Vo]:BB motor -- explanation (maybe not!)

2009-09-02 Thread Horace Heffner
On Sep 2, 2009, at 7:12 PM, Kyle Mcallister wrote: V, and Stephen and Horace in particular... Okay. The following experiment was performed. Took my two trusty bearings from the working BB motor. Left the U bolts attached to the outer races. Fine. Took a length of 5/8" smooth steel shaft,

Re: [Vo]:BB motor -- explanation (maybe not!)

2009-09-02 Thread Kyle Mcallister
--- On Wed, 9/2/09, Stephen A. Lawrence wrote: > > Good? No? Indifferent? > > Good?  Great, really. Thanks, appreciate that. > The experiment, I mean.  The result I'm not so happy > with -- trouble is > it didn't produce the result I expected!  Arrgh, > experiment wins again! > > Now, where

Re: [Vo]:BB motor -- explanation (maybe not!)

2009-09-02 Thread Stephen A. Lawrence
Wow! Fast work! This is so cool! Kyle Mcallister wrote: > V, and Stephen and Horace in particular... > > Okay. The following experiment was performed. > > Took my two trusty bearings from the working BB motor. Left the U > bolts attached to the outer races. Fine. U bolts on outer races ... OK

Re: [Vo]:BB motor -- explanation (maybe not!)

2009-09-02 Thread Kyle Mcallister
V, and Stephen and Horace in particular... Okay. The following experiment was performed. Took my two trusty bearings from the working BB motor. Left the U bolts attached to the outer races. Fine. Took a length of 5/8" smooth steel shaft, cut two pieces 2" long from that. One piece was clamped

Re: [Vo]:BB motor -- explanation (maybe not!)

2009-09-02 Thread Kyle Mcallister
--- On Mon, 8/31/09, Stephen A. Lawrence wrote: > Unfortunately, this experiment would be a pain in the neck > to perform, > and if I can judge by the silence, both Horace and Kyle > have given up on > this particular time sink.  No. Things are just... things are hard. Life. As for your "stat

Re: [Vo]:BB motor -- explanation (maybe not!)

2009-09-01 Thread Michel Jullian
Stephen, note that although some stainless steels are not magnetic, others are. The 300 series aren't, the 400 series are. Also it seems to me that the ball on track system, which we agreed should be equivalent, might be more convenient than an actual BB for the magnetic vs not magnetic tests you'

Re: [Vo]:BB motor -- explanation (maybe not!)

2009-09-01 Thread Stephen A. Lawrence
Horace Heffner wrote: > > On Sep 1, 2009, at 10:51 AM, Stephen A. Lawrence wrote: > >> >> >> Michael Foster wrote: >>> I haven't been following this thread very closely, so if my input is >>> repetitive, shoot me. Stephen's idea seems like a good test of >>> whether this phenomenon is thermally o

Re: [Vo]:BB motor -- explanation (maybe not!)

2009-09-01 Thread Horace Heffner
On Sep 1, 2009, at 10:51 AM, Stephen A. Lawrence wrote: Michael Foster wrote: I haven't been following this thread very closely, so if my input is repetitive, shoot me. Stephen's idea seems like a good test of whether this phenomenon is thermally or magnetically driven. Has anyone tried

Re: [Vo]:BB motor -- explanation (maybe not!)

2009-09-01 Thread Horace Heffner
M. --- On Tue, 9/1/09, Stephen A. Lawrence wrote: From: Stephen A. Lawrence Subject: Re: [Vo]:BB motor -- explanation (maybe not!) To: vortex-l@eskimo.com Date: Tuesday, September 1, 2009, 9:42 AM Here is another possible experiment which could indicate definitively whether the inductance of

Re: [Vo]:BB motor -- explanation (maybe not!)

2009-09-01 Thread Stephen A. Lawrence
someplace where I can find it again! > I may start a few experiments along these lines myself, if I can find the > time. > > M. > > --- On Tue, 9/1/09, Stephen A. Lawrence wrote: > > >> From: Stephen A. Lawrence >> Subject: Re: [Vo]:BB motor -- explanation

Re: [Vo]:BB motor -- explanation (maybe not!)

2009-09-01 Thread Michael Foster
ner's fluid and then ordinary electronic solder can be used. This works like a charm. I may start a few experiments along these lines myself, if I can find the time. M. --- On Tue, 9/1/09, Stephen A. Lawrence wrote: > From: Stephen A. Lawrence > Subject: Re: [Vo]:BB motor -- exp

Re: [Vo]:BB motor -- explanation (maybe not!)

2009-09-01 Thread Stephen A. Lawrence
Here is another possible experiment which could indicate definitively whether the inductance of the outer bearing race is playing a role. Unfortunately it also seems likely to be harder than it appears at first. Run the experiment with stainless (non-magnetic) bearings, and (hopefully!) observe t

Re: [Vo]:BB motor -- explanation (maybe not!)

2009-08-31 Thread Stephen A. Lawrence
Stephen A. Lawrence wrote: > My explanation turned out to have a gaping hole in it. However, I believe I have found some reasoning which implies something like that explanation must be correct, and I've also found a "fix" to it to allow the explanation to go forward, and I think there may even b

Re: [Vo]:BB motor -- explanation (maybe not!)

2009-08-29 Thread Stephen A. Lawrence
My explanation turned out to have a gaping hole in it. First, background: -- A wire carrying current has a "self inductance", which is fixed per unit length. -- The self inductance of a wire is larger for a ferromagnetic wire than a nonmagnetic wire, so the effects described here are l