Gentlemen,
I will go to the irc to see what is there.
I have been runniing NC and then CNC machines since 1979. I now
own machines with Fanuc, MDSI, Fadal, Haas, Okuma, Mitsubishi and
Leblond Makino and Cincinatti controls. Each of these machines act in
the same manner with the handwheel. You are able to move the handwheel
faster than the machine will move an axis. When you stop the handwheel
the axis stops and your handwheel dial is no longer accurate.
The speed the axis will move using the handwheel is also much
slower than the rapid speed. On a machine with 20 inches of X motion
this is not much of a problem and not really noticed. We have one
machine with 200 inches of X travel. When you move from one end of the
table to the other you definitely do not want to use the handwheel.
Any time I want to keep the handwheel dial position synchronized
with the axis positon I have to move the handwheel slower than the
machine will move the axis.
On one Fanuc control we had the machine builder turn this on when the
machine was installed. This has presented absolutely no problems for
us.
The leading value scenario not exceeding a certain amount is
preferable to me over the time constraint scenario. I would be able to
adjust the leading value per axis to allow the performance I wanted.
Even 1/2 inch or possibly 1 inch would be very much preferable to
unlimited. I see operators fling the handwheel when moving the
machines. If all the pulses resulted in motion the machine would
overtravel all the time.
If no one is wishing to help with this would someone guide me to
the section of the source code that would need to be modified. I know
very little c but I know some experienced coders. Anything I would
develop will be available and shared with everyone. This is not my
preferred path but I feel that I need this capability.
Thanks
Stuart
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