X and Y movement without Z and no cut

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18 Oct 2020 20:06 #186496 by radek_marko
X and Y movement without Z and no cut was created by radek_marko
Hi,
Another lame question from a complete newbie - I have done two test cuts from g-code so far.

After a fresh start of LinuxCNC, when I load g-code, home all, enable torch and start cut by pushing the "play" button the head and starts moving but only X and Y directions. It does not probe nor cut.

When I do test cut from the PlasmaC panel (even 10mm) before g-code and then hit "play" the g-code is executed as expected.

There must be something very silly I'm doing (or not doing). Any suggestions, even with sarcastic commets would be much appreciated ;)

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18 Oct 2020 20:12 #186498 by rodw
Replied by rodw on topic X and Y movement without Z and no cut
Can you jog the Z axis from the console?
Will the Z axis respond to G0 commands via the MDI window?

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18 Oct 2020 20:14 #186500 by radek_marko
Replied by radek_marko on topic X and Y movement without Z and no cut

Can you jog the Z axis from the console?

Yes

I do not know the answer for the second question. Will check when I will be in front of the machine.

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18 Oct 2020 22:02 #186520 by tommylight
Replied by tommylight on topic X and Y movement without Z and no cut
Is there an
M3 S1
in the gcode ?
The following user(s) said Thank You: phillc54

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19 Oct 2020 05:27 #186555 by radek_marko
Replied by radek_marko on topic X and Y movement without Z and no cut
I cannot find
M3 S1
in the g-code, I have only
M03 (turn on plasma)

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19 Oct 2020 05:31 #186557 by phillc54

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23 Oct 2020 05:50 - 23 Oct 2020 05:52 #186974 by radek_marko
Replied by radek_marko on topic X and Y movement without Z and no cut
So I've added M03 S1 to g-code and I've cut the first file - Christmas crib, all went fine, the torch was lowered and g-code followed,


Then, without restarting LinuxCNC I've executed Snowman's cut and the plasma torch was lowered at the home position, pierced the plate and the torch was on and dragged to the expected pierce position and then the cutting commenced.


After the snowman, I've executed cut of the crib again and it did the same as on snowman - pierced at the home and moved torch at hight speed cutting to the first path from the file.

G-code of both attached.
Christmas crib -

File Attachment:

File Name: Christmascrib3mm.ngc
File Size:24 KB

Snowman -

File Attachment:

File Name: Snowman3mm.ngc
File Size:10 KB
Attachments:
Last edit: 23 Oct 2020 05:52 by radek_marko.

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23 Oct 2020 08:07 #186981 by tommylight
Replied by tommylight on topic X and Y movement without Z and no cut
In the folder where the Inkscape gcode is being saved, create a new EMPTY file and name it "header"
Inkscape will have an M3 always at the top of gcode, so the above will make sure not to have it.

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23 Oct 2020 09:19 #186987 by radek_marko
Replied by radek_marko on topic X and Y movement without Z and no cut
Hi Tommylight, thank you for your help.
(Header)
(Generated by gcodetools from Inkscape.)
(Using default header. To add your own header create file "header" in the output dir.)
M3
(Header end.)

I will remove the code above and try to cut again.

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