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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 10 months ago

JoeBeef commented 10 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 10 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 10 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 10 months ago

oops Closed by mistake...

svenhb commented 10 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 10 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 10 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,