Inkscape Gcodetools plug-in English support forum

**Nick** » 10 дек 2009, 10:28

: Generated Gcode in EMC2

Type	Extension of vector graphics editor Inkscape
Developer	Gcodetools develop team
Written in	Python
OS	Cross-Platform (Windows, Linux, MacOS)
Version	1.6.03
License	GNU GPL
Downloads	7800+

Gcodetools

Gcodetools is a plug-in for Inkscape. It prepares and converts paths from Inkscape to Gcode, using biarc interpolation.

This article is unfinished. You can help cnc-club expanding it.
Screenshots and photos are needed. Please post them at this thread.

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License (для просмотра содержимого нажмите на ссылку)

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**Nick** » 05 апр 2010, 22:03

Note the following
From next versions tool parameters will be defined by tools library to add new tools you'll need:

Open Tools library tab
Select tools type (this only defines tool fields, you can add them after)
A new group will be added that will contain tool definitions
Fill in parameters with the text tool, if you do not understand something just do not change it
You can add a number of tools, extension will choose topmost (in z order) tool in the active layer or in the whole scene if there's no tools definitions in the active layer.

Please tell us about your opinion about new interface.

By the way thanks for the bug report!

PS this bug fix should fix deep holes and high peaks but should not fix some bugs in c letter and "i"'s dot. May be subdivision that you've made is to much try smaller values. And about "as" letters do Path->Reverse for them.

PSS do you know any Gcode previewer for Linux, except EMC, I need one to test generated Gcode files. I have problems with installing EMC at my work even in simulator mode, because I have LTPS server running on my computer and cannot install any hardware graphics drivers.

PSSS I'm wondering that theres to votes for improving Path to gcode what do you want to be improved?

**lond** » 06 апр 2010, 20:52

Hi!

I finally got the dimension marker to work and my gcode looks right now

Where can I find a Gcode viewer for windows? I use just notepad to see if tho gcode looks right.

// Marcus

**Nick** » 06 апр 2010, 21:37

Dormouse mentioned in his engraving tutorial this application windows freeware NCPlot v1.2.
Actual version is 2.1 but 1.2 is free you can get it from here:
http://www.ncplot.com/ncplotfree/ncplotfree.htm

**alfcnc** » 07 апр 2010, 22:33

Hi ! I have made some try with path to gcode ! and find error precision in Y conversion.

First screen shot show that in the gcode in left the max X coordinate is good and 2.594.

In this second screen shot when tool is at max Y the value is -24.697 and musd be -24.594 = 0,103mm error...big for some things
good for other but bad for me.

**Nick** » 07 апр 2010, 23:34

This is realy a strange thing. It sould not be so.
I'll check it tomorow morning.

**alfcnc** » 07 апр 2010, 23:53

Hi , i've vote For improve path to gcode !
But i think that's its a new feature...
That's be nice to be able to do gcode for turning from a path.
The XY for final cutting was the same than the generate paht-to-gcode and i think that just add an X cycle step for cuting along X axis was enought to be able to do turning path .. !

That's be nice to be able to set the y pass step depth.

Have a good night !

**Nick** » 08 апр 2010, 09:17

In this second screen shot when tool is at max Y the value is -24.697 and musd be -24.594 = 0,103mm error...big for some things
good for other but bad for me.

Is there an orientation point at the top of the circle? I see a small distance between orientation point and top of circle. It could be the reason of the circle been moved a little bit to the bottom.
I've tried to reproduce this error but everything seems fine to me.
G02 X[12.348501*#5+#8] Y[-24.697000*#5+#9] Z[-0.282222*#7+#10] I[-8.731709*#5] J[8.731709*#5]

circle.svg: (8.55 Кб) Скачиваний: 1095

Код: Выделить всё • Развернуть

%
(Generated by gcode_tools from inkscape.) 
M3 
G21 (All units in mm)
#4  = 400.000000 (Feed)
#5  = 1 (Scale xy)
#7  = 1.0 (Scale z)
#8  = 0 (Offset x)
#9  = 0 (Offset y)
#10 = 0.0 (Offset z)
#11 = 5.0 (Safe distanse)
#12 = 100 (Penetration feed)
G00 Z[#11*#7+#10]
G00 X[24.697002*#5+#8] Y[-12.348500*#5+#9]

G01 Z[-0.282222*#7+#10] F#12
G02 X[21.080210*#5+#8] Y[-21.080208*#5+#9] Z[-0.282222*#7+#10] I[-12.348500*#5] J[-0.000000*#5] F#4
G02 X[12.348501*#5+#8] Y[-24.697000*#5+#9] Z[-0.282222*#7+#10] I[-8.731709*#5] J[8.731709*#5]
G02 X[3.616792*#5+#8] Y[-21.080208*#5+#9] Z[-0.282222*#7+#10] I[-0.000000*#5] J[12.348501*#5]
G02 X[0.000000*#5+#8] Y[-12.348500*#5+#9] Z[-0.282222*#7+#10] I[8.731708*#5] J[8.731708*#5]
G02 X[3.616792*#5+#8] Y[-3.616792*#5+#9] Z[-0.282222*#7+#10] I[12.348499*#5] J[0.000000*#5]
G02 X[12.348501*#5+#8] Y[0.000000*#5+#9] Z[-0.282222*#7+#10] I[8.731709*#5] J[-8.731709*#5]
G02 X[21.080210*#5+#8] Y[-3.616792*#5+#9] Z[-0.282222*#7+#10] I[0.000000*#5] J[-12.348501*#5]
G02 X[24.697002*#5+#8] Y[-12.348500*#5+#9] Z[-0.282222*#7+#10] I[-8.731707*#5] J[-8.731708*#5]
G01 X[24.697002*#5+#8] Y[-12.348500*#5+#9] Z[-0.282222*#7+#10]
G00 Z[#11*#7+#10]

M5 
G00 X0.0000 Y0.0000 
M2 
(end)
%

Turning path

I think it will be very good if we do extension for turning lathe.
But I can not do it by myself because I have no experience of working with lathe. In our Russian forum there are some different threads than focus on Gcode tools develop. And every thread is pushed by somebody, for example Engraving was involved by Dormouse, Plasma cutting by Aftaev. So I need your help to create this extension, or I can help you to write it by yourself.

There are some questions that should be discussed before implementing lathe extension. I'll create new thread for it.

**alfcnc** » 08 апр 2010, 14:03

Ok ! the problem come that I think that the coordinate reference take the point 0,0 automatically
and I have not see the little offset on the coordinate point 0,0...
Excuse me for loose your time.
I have tried and no problem ! very well.
For develop new turning feature I'm not a python programmer.
But can try to make a new tab and see what that do.

**Nick** » 08 апр 2010, 14:52

alfcnc писал(а):For develop new turning feature I'm not a python programmer.
But can try to make a new tab and see what that do.

I can do all programing work. I need answers on some technical questions and advises about the interface.
Let's move to this thread: viewtopic.php?f=33&t=64

**Nick** » 15 апр 2010, 16:56

Gcode tools v1.5 release

Everything is almost done!
All we have to do is to correct mistakes in the interface. Unfortunately our English is poor so we can not do it by ourself.

Here's messages.pot file. It will be used to translate the interface to other languages, and contains almost whole interface.
It is a plain text file, so you can correct it in any editor you want.

messages.pot: (7.65 Кб) Скачиваний: 1251

Messages.pot contains strings like following, only msgid is needed to be corrected right now.

#: gcode_tools-develope.inx:1
msgid "Default tool (all parameters)"
msgstr ""

Also we need to correct tools parameters namings:

"diameter":10,
"shape": "10",
"penetration angle":90,
"penetration feed":100,
"depth step":1,
"in trajectotry":"",
"out trajectotry":"",
"gcode before path":"",
"gcode after path":"",
"sog":"" # this means cooling liquid I really do not know how to call it
"spinlde rpm":"",
"CW or CCW":"",

Thanks in advance!

messages.pot: (7.65 Кб) Скачиваний: 1251

**dormouse** » 23 апр 2010, 21:33

Second tutorial "gcodetools tutorial 02: Mill a spiral in 7 clicks!" by Dormouse.
http://kalyaev.com/2010/20100423/tut02/tut02.html

used: "gcodetools (dev)" (release 1.5 RC1 aka rev.55)
and NCPlot 1.2 freeware Gcode viewer for Windows http://www.ncplot.com/ncplotfree/ncplotfree.htm.

**Nick** » 28 апр 2010, 22:59

Gcodetools 1.5 release is here!

The latest version is in the header of this thread.

Features (new ones are in green)

Export to Gcode

Export paths to Gcode
Using circular (biarc approximation) or straight line interpolation
Automatic path subdivision to reach defined tolerance
Multiply tool processing
Export Gcode in parametric of flat form
Including personal headers and footers
Choosing units
Multi-pass processing

Path's area processing

Building area paths
Area paths could be modified

Engraving

Building trajectory according to the cutter's shape
Defining different cutter's shapes

Tool's library

Defining different tool's parameters (diameter, feed, depth step, penetration feed, personal Gcode before/after each path, cutters shape, personal tool's changing Gcode)
Tools can be managed by Inkscape's standard procedures (copy, delete, assigned to different layer)
Multiply tools processing

Orientation system

Applying scale along any axis
Apply rotate in the ХY plane
Apply translation along any axis
Apply transforms according to arbitrary points

top

**Nick** » 05 май 2010, 17:07

Bug fix
A little bug have been fixed. Scale factor that was calculated using Orientation points affected Z coordinate.

Fixed version is in the header of this thread.

**alfcnc** » 17 май 2010, 12:59

hi !

After some try with path to gcode and area !
I think some simple improvement would be add to the generation of gcode.
In the case of multi pass cutting with Z depth step when the code goto the other
plunge it return to zsafe... and this loose time.
I think it's more interesting to plunge directly to the new z depth...and not to return to z safe
and just go to new Z depth...

**Nick** » 18 май 2010, 12:41

alfcnc писал(а):hi !

After some try with path to gcode and area !
I think some simple improvement would be add to the generation of gcode.
In the case of multi pass cutting with Z depth step when the code goto the other
plunge it return to zsafe... and this loose time.
I think it's more interesting to plunge directly to the new z depth...and not to return to z safe
and just go to new Z depth...

Hmmmm... I'll think about it.

There are some moments:
1. It would work only for closed paths.
2. When we do multi pass cutting, especially in area cutting case, it could be better to cut layer by layer, instead of cutting paths to the maximum depth.

**smiki** » 21 май 2010, 13:31

Hello,

I've got a problem. When trying to use the extension I always get this message:

Код: Выделить всё • Развернуть

Traceback (most recent call last):
  File "/usr/share/inkscape/extensions/gcodetools.py", line 41, in <module>
    _ = inkex._
AttributeError: 'module' object has no attribute '_'

I'm using a standard EMC2 install from the official liveCD .iso image (ubuntu hardy 8.04)
Inkscape version 0.46
gcodetools version 1.5
python 2.5

In this install was alsomissing the python-lxml package which i had to add manualy.
Can this problem be caused by some more missing package?
Do you need any more information ?

**Nick** » 22 май 2010, 08:31

Thanks for the feedback!

Could you attach inkex.py file (/usr/share/inkscape/extensions/inkex.py) from your install. Probably it differs from inkex.py from inkscape 0.47 and higher.

**smiki** » 25 май 2010, 21:32

here is my inkex.py file

**Nick** » 26 май 2010, 10:13

As I thought your inkex.py differs from that is in Inkscape 0.47.

Код: Выделить всё • Развернуть

import gettext
from math import *
_ = gettext.gettext

Код: Выделить всё • Развернуть

import sys, copy, optparse, random, re

I think we need to add this to gcodetools.

Код: Выделить всё • Развернуть

import gettext
_ = gettext.gettext

PS does anybody know when EMC2 Ubuntu 10.04 LiveCD will be ready?

**smiki** » 26 май 2010, 15:03

I will try your solution to add these lines to gcodetools. Will get back to you.

according to 10.04 release see schedule
http://wiki.linuxcnc.org/emcinfo.pl?Emc2.4Status

What function should we develope next?

Gcodetools

Features

License

Install

Usage

Screenshots

Get latest versions

Dev-version

Translations

Credits

Develop

Tested on

Turning path

Gcode tools v1.5 release

Gcodetools 1.5 release is here!

The latest version is in the header of this thread.

Features (new ones are in green)

Кто сейчас на конференции

Поделиться