Good point.  Thanks
John

> -----Original Message-----
> From: Les Newell [mailto:les.new...@fastmail.co.uk]
> Sent: June-29-21 3:22 PM
> To: emc-users@lists.sourceforge.net
> Subject: Re: [Emc-users] Mounting spindle sensors.
> 
> > When the drawing is rotated you can actually see the sensors are offset so 
> > one looks at the tooth and one at the slot between.
> 
> That spacing gives you 180 degree phasing. You want 90 degree, so when
> one sensor sees an edge, the other should see the centre of a tooth or
> slot. It's an easy mistake to make. I see your drawing allows for plenty
> of adjustment so you would have been able to fix it anyway.
> 
> Les
> 
> On 29/06/2021 23:09, John Dammeyer wrote:
> > Thanks Les,
> > You can't quite see it in the photo but there's even an arc slot inward a 
> > tad to serve as the index.  So a total of 3 slotted sensors are
> sitting on my desk.
> >
> > This was the overly complex plan A.  When the drawing is rotated you can 
> > actually see the sensors are offset so one looks at the
> tooth and one at the slot between.
> >
> >
> >
> 
> 
> 
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