At 03:16 PM 8/3/00 -0400, you wrote:
We have a Hurco mill with an OM Fanuc control. Here is a sample of code for
tapping...
N50M98P1
T05( 1/2-13 TAP )
G54G43X2.5Y-11.5Z2.0S91H05M03
G99G84Z-1.5F7.0R0.5M08
X3.5Y-11.5
X4.5Y-11.5
X5.5Y-11.5
X6.5Y-11.5 <-- lets say the tap breaks here
X7.5Y-11.5
X8.5Y-11.5
X9.5Y-11.5
X10.5Y-11.5
According to what your saying I would execute from N50 to the first X & Y
position in single block WITHOUT the tap in the tap holder. Then I would
stop the machine, go into edit, move to X6.5Y-11.5 line, put the tap back in
the tap holder, go to run mode and single block this line and IF everything
went okay take single block off, and press start run button and run the rest
of the program.
Is what I just said above sound like a good game plan?
In the above example you would have to execute down to G99G84Z-1.5F7.0R0.5M08 without the tap in the holder so you can set up the tapping cycle and them put the tap back in and go to X6.5Y-11.5 and start the program again. Be sure you execute the program in single block because when you are in run mode the control will load the next 2 or 3 blocks of information in the buffer and when you stop and jump to another part of the program the control will execute those 2 or 3 blocks then go to the part of the program that you moved to. If you can't run in single block mode to get to the point you need to jump to another location then run in run mode until you get close and then switch to single block mode for at least 3 blocks to clear the buffer.
Here is a mill sample from the same program...
N100M98P1
T08( 3/4 ROUGH SANDVIK CARBIDE E/M )
G54G43X1.5Y-12.575Z2.0S2546H08M03
G00Z0.1
M08
G01Z-0.05F38.<- 1st pass up the center of the slot
Y0.2
G41X1.025D38
Y-12.575
X1.975
Y0.2
G40X1.6
G00Z0.1<- clear part
X1.5Y-12.575
G01Z-0.1
Y0.2<- 2nd pass up the center of the slot and tool breaks half way
G41X1.025
Y-12.575
X1.975
Y0.2
G40X1.6
Using what you said how do you get the e/m to z-.1 depth at the beginning of
the Y0.2 line without going through the 1st pass ?
The first thing you need to do is copy the feed down to the second G01Z-.1 line like G01Z-.1F38 and copy the D38 down to the second G41X1.025 line like
G41X1.025D38.
Then single block down to the M08 to turn on the coolant and jump down to X1.5Y-12.575 and continue.
-----Original Message-----
From: Milling Precision Tool [mailto:[EMAIL PROTECTED]]
Sent: Thursday, August 03, 2000 2:08 PM
To: Jim Mivshek; [EMAIL PROTECTED]
Subject: Re: [mfg-smartcam] Start point.
I have started in the middle of a program several times. It
works best for
me on a Fanuc control. Scan through the program to find
where you need to
restart and wright down the line N number or put a N number
there. Start
the program running in single block mode. Single block
through the
beginning of the program until you load the tool and execute
the tool
length and spindle speed comands. Some times I will let the
control execute
the first position move then I will put the control in
manual mode and
search through the program to the N number line in the
program that has an
X & Y location move of where I want to restart at. Put the
control back in
run mode and push start and single block through a few lines
to make sure
everything is alright. Take off single block and off you GO.
Some times it
takes a little work but I have had good luck this way. Play
around with
this method with the tool removed to see if it will work for
you.
Good Luck.
At 07:55 AM 8/3/00 -0500, you wrote:
>If have a run time of 2 hours and my cutter snaps at 1.5
hours into it how
>can I start again at the point of breakage.
>I have tried starting in the middle of progam before
without success.
>
>I believe it needs to see the header code to know cutter
comp, fixture
>offsets, feeds, speeds ect.
>How can I do this...
>
>Thanks
>Jim M. "Cherry Corp"
>
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Gary Byerlee
Milling Precision Tool Corp.
118 N. Martinson
Wichita, Kansas 67203
(316) 265-0973
[EMAIL PROTECTED]
