Re: [Emc-users] BLDC design

2014-05-25 Thread Leonardo Marsaglia
2014-05-22 19:42 GMT-03:00 andy pugh : > I made one from scratch. It works to an extent: > > https://picasaweb.google.com/lh/photo/LnN2AatetvQGg4F9v6ha5NMTjNZETYmyPJy0liipFm0?feat=directlink > > (I needed a very big hole through the middle) > Almost nothing to do with the topic but, may I say tha

Re: [Emc-users] BLDC design

2014-05-23 Thread andy pugh
On 23 May 2014 00:04, Erik Friesen wrote: > Anaheim got back with me, they apparently don't have an in house engineer, > they only distribute. They could only tell me that the original magnet is > neodymium. I am guessing that the plan is to use the housing and coils to couple to a pump shaft in

Re: [Emc-users] BLDC design

2014-05-22 Thread Klemen Dovrtel
On Friday, May 23, 2014 2:20 AM, Erik Friesen wrote: >I want to open the airgap, and attempt to use my own magnetic design without >totally >breaking the motor.  I think the rotor magnets can be grinded, so if you are planning just to increase the airgap (and not change the poles number) t

Re: [Emc-users] BLDC design

2014-05-22 Thread Erik Friesen
Anaheim got back with me, they apparently don't have an in house engineer, they only distribute. They could only tell me that the original magnet is neodymium. On Thu, May 22, 2014 at 6:42 PM, andy pugh wrote: > On 22 May 2014 20:11, Erik Friesen wrote: > > Anyone on the list know someone kno

Re: [Emc-users] BLDC design

2014-05-22 Thread andy pugh
On 22 May 2014 20:11, Erik Friesen wrote: > Anyone on the list know someone knowledgeable about brushless motor design? I made one from scratch. It works to an extent: https://picasaweb.google.com/lh/photo/LnN2AatetvQGg4F9v6ha5NMTjNZETYmyPJy0liipFm0?feat=directlink (I needed a very big hole thro

Re: [Emc-users] BLDC design

2014-05-22 Thread Erik Friesen
I have been waiting on a return call from anaheim. Sometimes when you get a little off the beaten path folks can't help. Anyway, I am considering replacing what I believe is a 0.800" x 0.875" diameter 8 pole neodymium magnet(0.100" thick) with a ferrite, or other 8 pole magnet. The ID of the coi

Re: [Emc-users] BLDC design

2014-05-22 Thread Dave Cole
You might be better off asking a question. Have you tried talking to Anaheim? They are friendly. Dave On 5/22/2014 3:11 PM, Erik Friesen wrote: > Anyone on the list know someone knowledgeable about brushless motor design? > > I am attempting to replace a rotor on this motor > *BLY171S-24V-4000

[Emc-users] BLDC design

2014-05-22 Thread Erik Friesen
Anyone on the list know someone knowledgeable about brushless motor design? I am attempting to replace a rotor on this motor *BLY171S-24V-4000* with a ferrite, or other magnet for a pump. Its