Error I have never had before

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22 Mar 2019 22:31 #129303 by allenwg2005
Hi Folks,

I am using Fusion 360 w/ the standard LinuxCNC [EMC] post.
I am getting an error I have never had before:

"Can not use G53 with cutter radius comp"

I did change my ini recently to include G54 to do toolchanges in a more convenient place, (can that cause this???)

I'll attach the ngc if it helps.

Thank in advance
Attachments:

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22 Mar 2019 22:38 - 22 Mar 2019 22:39 #129305 by Grotius
I see an airplane in your logo.

Maybe first do G40. Then do G53.

G40 is cutter compansation off.
linuxcnc.org/docs/2.6/html/gcode/gcode.html#sec:G40
Last edit: 22 Mar 2019 22:39 by Grotius.

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22 Mar 2019 22:53 #129308 by allenwg2005
More of a flying wing than airplane, but I feel ya.

That did the trick, I just don't have a clue why it started this.

Thanks for the assist.
The following user(s) said Thank You: Grotius

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23 Mar 2019 07:34 #129336 by tommylight

I see an airplane in your logo.


That is a B2 bomber !
Could not upload pic as they are all copyrighted.

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23 Mar 2019 12:15 #129353 by pl7i92
always a good idea to start the G-code with a preamble set to Fusion360

G17 G21 G54 G90 G61 G40 G40 G80 ...

as You like to be set the mashine

S1000 not a bad idee to set a Speed as tools break with no turn

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23 Mar 2019 23:02 #129403 by allenwg2005
That preamble looks like a worthwhile thing to do.
Now, how do I add it to the post?
Went and had a look at the LinuxCNC post and was blown away, I changed a post for Vetric and thought that was a challenge, this Fusion post is way way above my pay grade.
Short of a copy this and paste it (here) sort of step by step is the best I could do.

Also, I was running a ngc file today with three different tools in it, when I get to the end of a tool run the machine stops (just as the code tells it to), it dosen't ask for the next tool or give an opportunity to go foreword with the new tool.
Am I doing something wrong? How do I move on?
My guess is the post is written in a way it will not allow for this.

I'll add a little bit of code to show the issue.

Thanks again.

N1070 G1 Z-0.18 F6.
N1075 G0 Z-0.1084
N1080 G1 Z-0.2 F6.
N1085 G0 Z-0.1284
N1090 G1 Z-0.2067 F6.
N1095 G0 Z0.1
N1100 Z0.3
N1105 M5
N1110 G53 Z0. [color=blue(]It stops here)[/color]
(N DRILL LARGE HOLES)
N1115 M9
N1120 M1
N1125 T13 M6
N1130 T1
N1135 S5000 M3
N1140 G54
N1145 M7
N1150 G0 X5.8046 Y10.4086
N1155 G43 Z0.3 H13
N1160 G0 Z0.1
N1165 Z0.05.

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24 Mar 2019 02:06 #129424 by tommylight

That preamble looks like a worthwhile thing to do.
Now, how do I add it to the post?

You can also add a lot of preamble code to the ini file, so the config starts with those and uses them until it is told otherwise.
You have two tool changes consecutively in that gcode, one without the M6 !

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24 Mar 2019 07:40 #129447 by pl7i92
the linuxcnc post processor of fusion does not use G53 at all
try to use the fanuc11m one
just to test

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24 Mar 2019 15:53 #129481 by allenwg2005
I'm puzzled about that double tool call myself, I have no idea what is going on there.
Something in the post maybe?

I put together a test file to add here, can anyone explain or point me in a direction to address this conundrum?

Thanks as always.

File Attachment:

File Name: Testpost.ngc
File Size:1 KB
Attachments:

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24 Mar 2019 19:18 #129503 by tommylight
That double tool thing seems to be :
First line with M6 in it is to change the tool,
Second line with no M6 is to prepare the next tool.
Read somewhere that Linuxcnc can do that, so it should be ok.
But i do not know what M1 and M9 do ?

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