constant velocity
15 Dec 2020 09:54 #192038
by ahmetbm
constant velocity was created by ahmetbm
Hi,
I have a problem with my g code, below attached a pice of it. When there is a problem during execution of code, i stop the machine, correct the things and use "run from here" command to resume the execution. I am using M3 S1 code to send a signal for laser.
If i use M3 S1 only at the beginning of the code and if i encounter a problem in the middle, i can not activate M3 S1 when i use "run from here" command.
If i use M3 S1 between G1 commands like below, "run from here" works flawless, but machine can not move in constant velocity, it speeds down and up when M3 S1 command encountered.
I will appreciate if anybody can give a solution or even an enlightenment for this purpose?
Thanks.
I have a problem with my g code, below attached a pice of it. When there is a problem during execution of code, i stop the machine, correct the things and use "run from here" command to resume the execution. I am using M3 S1 code to send a signal for laser.
If i use M3 S1 only at the beginning of the code and if i encounter a problem in the middle, i can not activate M3 S1 when i use "run from here" command.
If i use M3 S1 between G1 commands like below, "run from here" works flawless, but machine can not move in constant velocity, it speeds down and up when M3 S1 command encountered.
I will appreciate if anybody can give a solution or even an enlightenment for this purpose?
Thanks.
G21 (Units in millimeters)
G90 (Absolute programming)
G64 (Default cutting)
G17 (XY plane)
G40 (Cancel radius comp.)
G49 (Cancel length comp.)
F280
G0 X 2.01200 Y 0.50000
G4 P1
M3 S1
G1 X 1.84950 Y 1.50000
M3 S1
G1 X 1.68700 Y 2.50000
M3 S1
G1 X 1.52450 Y 3.50000
M3 S1
G1 X 1.36200 Y 4.50000
M3 S1
G1 X 1.19950 Y 5.50000
M3 S1
G1 X 1.08575 Y 6.20000
M3 S1
G1 X 0.92498 Y 7.18937
M3 S1
G1 X 0.80727 Y 8.07545
M3 S1
G1 X 0.71382 Y 8.77545
M3 S1
G1 X 0.57961 Y 9.77545
M3 S1
G1 X 0.44457 Y 10.77545
M3 S1
G1 X 0.30707 Y 11.77545
M3 S1
G1 X 0.22 Y 12.77545
M3 S1
G1 X 0.13 Y 13.77545
M3 S1
G1 X 0.05 Y 14.77545
M3 S1
G1 X 0.02 Y 15.78362
M3 S1
G1 X 0.02 Y 16.78138
M3 S1
G1 X 0.02 Y 17.78138
M3 S1
G1 X 0.02 Y 18.78138
M3 S1
G1 X 0.03197 Y 19.78138
M3 S1
G1 X 0.05812 Y 20.78138
M3 S1
F210
G2 X 2.19 Y 20.78138 I 1.07 J -0.2
M3 S1
F280
G1 X 2.23 Y 19.91940
M3 S1
G1 X 2.3 Y 18.71940
M3 S1
G1 X 2.33 Y 17.71940
M3 S1
G1 X 2.35 Y 16.71940
M3 S1
G1 X 2.35 Y 15.78247
M3 S1
G1 X 2.34 Y 15
M3 S1
F140
G3 X 2.91 Y 15 I 0.285 J -0.02
M3 S1
F280
G1 X 2.91 Y 16.28325
M3 S1
G1 X 2.91 Y 17.28325
M3 S1
G1 X 2.91 Y 18.28325
M3 S1
G1 X 2.91 Y 19.28325
M3 S1
G1 X 2.91 Y 20.28325
M3 S1
G1 X 2.91 Y 21.08083
M3 S1
G1 X 2.93 Y 21.78083Please Log in or Create an account to join the conversation.
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15 Dec 2020 13:42 #192046
by tommylight
Replied by tommylight on topic constant velocity
Before clicking on "run from here" , press F9 on the keyboard.
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15 Dec 2020 20:14 #192072
by ahmetbm
Replied by ahmetbm on topic constant velocity
I have read about that solution in the forum, unfortunately it does not solve my problem.
I need a way to re-activate M3 S1 after clicking "run from here". Otherwise machine will be damaged.
I can change the signal, i only need an activation signal when g code is being executed it is active and when a pause, stop or e-stop arrives it is passive, and when "run from here" is used it is activated automatically.
Thanks in advance.
I need a way to re-activate M3 S1 after clicking "run from here". Otherwise machine will be damaged.
I can change the signal, i only need an activation signal when g code is being executed it is active and when a pause, stop or e-stop arrives it is passive, and when "run from here" is used it is activated automatically.
Thanks in advance.
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16 Dec 2020 03:37 #192097
by cmorley
Replied by cmorley on topic constant velocity
how did you try to issue m3 s1 before running from line? MDI?
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16 Dec 2020 07:25 #192107
by ahmetbm
Replied by ahmetbm on topic constant velocity
I can not issue m3s1 before running from line, otherwise the machine will be damaged. I only tried that solution as: click "run from here" and wait till it starts executing line and press F9, but it did not activated spindle
I am curious, if it is possible that the "run from here" command can check if there is a signal should be activated while executing the current line?
I am curious, if it is possible that the "run from here" command can check if there is a signal should be activated while executing the current line?
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16 Dec 2020 16:12 #192140
by ahmetbm
Replied by ahmetbm on topic constant velocity
I tried to use M64-M65 for signal activation because i need a signal to trigger a relay, but unfortunately M64-M65 is active after e-stop is triggered.
If any advice to use different way that i could not find in linuxcnc, i apreciate it.
If any advice to use different way that i could not find in linuxcnc, i apreciate it.
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16 Dec 2020 17:32 - 16 Dec 2020 17:32 #192146
by tommylight
Replied by tommylight on topic constant velocity
You can AND the e-stop or machine is enabled with the DOUT, so when disabled or e-stopped it will also turn off the output.
It requires adding 3 or 4 lines in hal.
www.google.com/search?source=hp&ei=eETaX...I1C_4Q4dUDCAY&uact=5
It requires adding 3 or 4 lines in hal.
www.google.com/search?source=hp&ei=eETaX...I1C_4Q4dUDCAY&uact=5
Last edit: 16 Dec 2020 17:32 by tommylight. Reason: wrong link.
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17 Dec 2020 06:54 #192230
by ahmetbm
I am sorry my explanation is wrong, in fact M64-65 is stopped by e-stop, however it is activated as soon as i removed e-stop , before i make any jogging or another preparation. So the signal must stay de-active until i press start.
Replied by ahmetbm on topic constant velocity
I tried to use M64-M65 for signal activation because i need a signal to trigger a relay, but unfortunately M64-M65 is active after e-stop is triggered.
If any advice to use different way that i could not find in linuxcnc, i apreciate it.
I am sorry my explanation is wrong, in fact M64-65 is stopped by e-stop, however it is activated as soon as i removed e-stop , before i make any jogging or another preparation. So the signal must stay de-active until i press start.
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18 Dec 2020 12:59 #192328
by ahmetbm
Thanks for the tip, i was able to manage the needs, however i was avoiding manual jogging, but i used to solve the problem
Replied by ahmetbm on topic constant velocity
You can AND the e-stop or machine is enabled with the DOUT, so when disabled or e-stopped it will also turn off the output.
It requires adding 3 or 4 lines in hal.
www.google.com/search?source=hp&ei=eETaX...I1C_4Q4dUDCAY&uact=5
Thanks for the tip, i was able to manage the needs, however i was avoiding manual jogging, but i used to solve the problem
The following user(s) said Thank You: tommylight
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