Opps! Brain was on hold when I wrote the first version of this post.
Substitute usrmot for emcmot and it should make more sense.
Dave
On Jan 28, 2007, at 9:31 PM, Dave Engvall wrote:
Hi Karen,
There is some interest in this kind of functionality within emc. It
would be handy for either sinker or wire edm at the least and you
apparently have thought of another use.
If one can program in Tk/Tcl then modifying tkemc to provide this
kind of movement should not be too difficult. No one has done this to
my knowledge.
I tried an external approach where I drove emc with emcmot and then
attempted to provide input to emcmot by piping input from a small C
program to emcmot.
The C program watched a couple of pins on the parallel port and
responded according to rules in the program.
Unfortunately, the parts would work separately but the pipe failed.
(Maybe someone knows why and can point me in the right direction). :-)
Reverse movements should not be tried with G0 in two or more
dimensions as it is rumored that G0 doesn't have to follow a
coordinated path to the destination.
In addition there are some hooks into emc using Python and Axis but
I'm completely at a loss there.
BTW-the reversal process also works for G2/G3 by inverting the sense
of the curve to go backwards.
Hope this helps and maybe someone with better ideas will respond.
Dave
On Jan 28, 2007, at 12:30 PM, Karen hov. wrote:
Dear Sirs,
I use TKEMC software & I have a question. Would
you please be so kind & help me to solve the problem .
I want to add a "bottom" that do "Backward Step".
write part of a very simple program
n10 g0 x0 y0 z0
n20 g1 f10 z-0.10
n30 x1
n40 y1
n50 x0
n60 y0
n70 g0 z0
n80 m2
If run the program using step and have just completed
line n50.
i want it go back and run n40,then n30,..
Thanks in advance & looking forward to receive
your reply ASAP.
Best Regards,
Karen Hovsepian
HI Automation
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