Re: tool changer logic- mathematical challenge

--- In CAD_CAM_EDM_DRO@yahoogroups.com, cnc002@a... wrote:
>
>
> In a message dated 8/12/2004 11:09:14 AM Eastern Daylight Time,
> snaggletto@c... 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@a...
>
> 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]