RE: [CAD_CAM_EDM_DRO] Reflective pickup

Hi,

Have a look at the OMRON EE-SY671. It is a reflective sensor with the
electronics, including a sensitivity adjustment and LED indicator built in.
It is as close as "plug and play" as you will get.

It requires +5V, GND and has a digital out signal that requires a pull-up
resistor. One of the good features is the distance it can be from the
pulley. If you look at the photo, you will see the gap is about 1/2".

I used a permanent marker pen to colour 1/2 of the pulley black. That way it
gives a 50% duty cycle wave form. I have to reapply the black about every 6
months due to it being rubbed off from handling the pulley.


I have a picture of one mounted on my Taig mill on the master 5 yahoo group
in the photos section in a folder called homann

http://photos.groups.yahoo.com/group/master5/vwp?.dir=/Homann&.src=gr&.dnm=e
ncoder.jpg&.view=t&.done=http%3a//photos.groups.yahoo.com/group/master5/lst%
3f%26.dir=/Homann%26.src=gr%26.view=t


I did a search and its about $19.00 from Mouser.

http://www.mouser.com//index.cfm?handler=search.processsearchb&supplierpage=
653-EE-SY671


Hope this helps.

Peter Homann
mailto:Peter.Homann@...
Adacel Technologies Limited,
250 Bay St, BRIGHTON, 3186, AUSTRALIA
http://www.adacel.com <http://www.adacel.com>
Telephone +61 (3) 8530 7777, Facsimile +61 (3) 9596 2960
Mobile 0421-601 665

> -----Original Message-----
> From: wanliker@... [mailto:wanliker@...]
> Sent: Friday, 28 November 2003 5:39 PM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Cc: SherlineCNC@yahoogroups.com; sherline@yahoogroups.com
> Subject: [CAD_CAM_EDM_DRO] Reflective pickup
>
>
> Can anyone on the list give me a suggested part numbet to add a
> pick up on a
> Sherline lathe for TurboCNC threading.
> I don't want to use a tab on the Sherline pulley due to the
> danger it would
> present.
> I am looking for something that can see either a reflective or a
> BLACK spot
> with mimimial dimensions, working distance in the range of 1/4" to 1/2" +
> range.
> I want the type that will sense off the end or side of the
> device, but not
> the type that has a U shape with pickup between the U sides.
> Or if you have done this to a Sherline, Please describe what you did, and
> what part/parts you used. And would you do it the same way again?
> Any suggestions would be greatly appreciated.
> Thank You,
> bill
>
> Cross posted to other groups.
>
>
> [Non-text portions of this message have been removed]
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