CAD CAM EDM DRO - Yahoo Group Archive

Re: [CAD_CAM_EDM_DRO] Simple DRO new idea

Posted by M. SHABBIR
on 2001-09-04 19:36:28 UTC
ok thanks
i think u have also tried to using stepper motor or stepper rooter magnet.


shabbir


At 10:46 PM 9/3/01 +0000, you wrote:0
>"M. SHABBIR" wrote:
>
>> hi
>> u can find ring magnet in back of audio speaker.
>>
>> shabbir
>>
>> At 02:26 PM 9/2/01 -0600, you wrote:
>> >Scott
>> >I am working on a very simple dro using a special purpose Hall effect
sensor
>> >and a simple up down counter connected to a 8 digit led. It would work as
>> >follows
>> >a linear magnet strip or a ring magnet with alternating north and south
>
>The ring shaped magnet it a speaker has one pole in the center, and one pole
>on the OD (some fold the design, so each face is a pole). This won't work
>as a magnetic encoder, since the poles don't move when it is rotated.
>A 2-pole motor with a ring magnet only has 2 poles for one revolution,
>so that may still not work well for your application. Floppy drive motors
>from the ones with the motor in the hub usually have more poles, and may
>have a tach ring that has many poles per rev. These are pretty large
>diameter, however.
>
>Jon
>
>
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Discussion Thread

Scott Riddle 2001-09-02 08:44:49 UTC Simple DRO Doug Harrison 2001-09-02 09:05:03 UTC Re: [CAD_CAM_EDM_DRO] Simple DRO Art Eckstein 2001-09-02 11:46:57 UTC Re: [CAD_CAM_EDM_DRO] Simple DRO wanliker@a... 2001-09-02 12:17:14 UTC Re: [CAD_CAM_EDM_DRO] Simple DRO HighTech 2001-09-02 13:20:49 UTC RE: [CAD_CAM_EDM_DRO] Simple DRO new idea Art Eckstein 2001-09-02 13:40:05 UTC Re: [CAD_CAM_EDM_DRO] Simple DRO M. SHABBIR 2001-09-03 11:38:05 UTC RE: [CAD_CAM_EDM_DRO] Simple DRO new idea cncdxf@a... 2001-09-03 12:01:38 UTC Re: Simple DRO new idea Jon Elson 2001-09-03 15:42:19 UTC Re: [CAD_CAM_EDM_DRO] Simple DRO new idea Alan Marconett KM6VV 2001-09-04 10:54:28 UTC Re: [CAD_CAM_EDM_DRO] Simple DRO new idea M. SHABBIR 2001-09-04 19:36:28 UTC Re: [CAD_CAM_EDM_DRO] Simple DRO new idea Mark Taft 2001-09-05 00:55:16 UTC RE: [CAD_CAM_EDM_DRO] Simple DRO new idea dlantz@a... 2001-09-05 04:56:44 UTC RE: [CAD_CAM_EDM_DRO] Simple DRO new idea HighTech 2001-09-05 09:30:53 UTC RE: [CAD_CAM_EDM_DRO] Simple DRO new idea update Jon Elson 2001-09-05 10:41:35 UTC Re: [CAD_CAM_EDM_DRO] Simple DRO new idea M. SHABBIR 2001-09-06 20:13:31 UTC RE: [CAD_CAM_EDM_DRO] Simple DRO new idea