Re: [CAD_CAM_EDM_DRO] Re: tool changer logic- mathematical challenge

In a message dated 8/12/2004 11:09:14 AM Eastern Daylight Time,
snaggletto@... writes:

This is an existing design from an Emco Turn 120 cnc lathe that I'm
retrofitting/reverse engineering (I've never seen the machine
operate, it was purchased with bad controls). The tool turret
assembly is a very small, integrated package. Any sensor changes
will require modification. I'm not ruling out other options,
however, operating the turret as is would be the most preferred at
this point.

Due to the ratcheting mechanism, the turret will have to move
slightly past and then revese back into postion after the sensor is
tripped (sensor trips a motor reversing relay). I believe field of
view of each sensor will allow this overshoot, which is necesary for
proper operation. However, it is all relative, and the problem can
be solved by assuming an infinitely small sensor field of view.

Let's see some answers.



Ok, I thought you were starting from scratch. How many teeth in the
ratcheting mechanism?



Randy Abernathy
4626 Old Stilesboro Road NW
Acworth, GA 30101-4066
Phone / Fax: 770-974-5295
Mobile: 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.


[Non-text portions of this message have been removed]