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svenhb / GRBL-Plotter

A GCode sender (not only for lasers or plotters) for up to two GRBL controller. SVG, DXF, HPGL import. 6 axis DRO.
https://grbl-plotter.de/
GNU General Public License v3.0
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Question/Help : Tool diameter from tool table #370

Closed JoeBeef closed 9 months ago

JoeBeef commented 9 months ago

Hi,

I am importing an SVG file into GRBL-Plotter to send to my CNC. The setup is made to take the information from the tool table. I was expecting to see the tool diameter to be taken into account when generating the Gcode but this is not the case.

Am I missing a setup some where to tell to offset the toolpath of half the tool diameter ?

Thanks in advance for your help.

svenhb commented 9 months ago

You are right, I never paid attention to it, beacause it doesn't affect the generated G-Code - just 2D-view. Will try to fix it.

JoeBeef commented 9 months ago

Thanks for looking into it.

But at the sametime it brings more question.

When you say that just the 2D view is affected... I don't even see the 2D view changing.

Looking at the generated GCODE, I noticed the PenWidth = 0.004 parameter. Changing this value in the GCODE does affect the 2D view, Now, my question is , where does it get that value from, I have looked everywhere for it an never found it ?

( SVG import by GRBL-Plotter 1.7.1.0.c ) ( Source: C:\Users\Maiso\Downloads\Dixies.svg ) (

) ( G-Code lines: 5700 ) ( Pen Down/Up : 37 times ) ( Duration ca.: 2.6 min. ) ( Conv. time : 00:00:00.0526929 ) ( Values from tool-table: spindle speed. XY feed. Z Values ) ( Tool changes: 1) ( 1 ToolNr: 01 Cnt: 1 Name: Red=[000000] ) ( SVG dimension : 39.00 61.00 ) ( Title: svgOutput) (
) F1000 (Setup - GCode-Header) G90 G00 Z2.000 (<Figure Id="1" Geometry="path" PenColor="000000" **PenWidth="0.004"** PathLength="197.8"> ) M05 (Stop spindle - Option Z-Axis) T01 M06 (Tool:1 Red=[000000]) M3 S1000 (Start spindle - Option Z-Axis) G04 P1 ....

Thanks,

JoeBeef commented 9 months ago

oops Closed by mistake...

svenhb commented 9 months ago

The pen-width is read from the imported graphics. If you import SVG, the key-word is stroke-width (usally given in pixel) which will be converted to mm.

svenhb commented 9 months ago

Example SVG with stroke-width of 0.5, 1, 2, 3. You can drag and drop the picture below into GRBL-Plotter (on 2D view) width_test2 There are options to convert the pen-width to Z-value or S-value.

JoeBeef commented 9 months ago

Thanks, just found out that the penValue and color comes from the SVG file!!! I am new at this and I should have done more research.

Thanks,