Re: [CAD_CAM_EDM_DRO] tool changer logic- mathematical challenge

In a message dated 8/12/2004 10:21:56 AM Eastern Daylight Time,
snaggletto@... writes:

Given; a series of 4 optical sensors, spaced evenly @ 90 degrees
around a circle.



Why four, you only need one plus one to identify the first position of the
tool. Seems using four is a bit over complicated. The industrial CNC routers
which I service and install use the single sensor method. Then all you have
to do is get your logic to count from No. 1 and you can even have the turret
turn in both directions for more efficient tool changing by simply keeping
up with the current tool in the spindle using the memory in the control. No
need to worry about the number of degrees contained within the 4 "C" shaped
openings. All you need is one single tab for the sensor to pick up.

Just a thought based on the designs I have seen.

Randy Abernathy
4626 Old Stilesboro Road NW
Acworth, GA 30101-4066
Phone / Fax: 770-974-5295
Cell: 678-772-4113
E-mail: Cnc002@...

I furnish technical support, repair, and other related services for your
industrial woodworking machinery. My background as Senior Service Engineer for
the SCMI Group for nearly fifteen years with factory training, combines with
my extensive background in electronics, mechanics, pneumatics, electrical and
CNC machinery to offer you needed support for your machinery.


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