post processor for cad cam software

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05 Jun 2014 08:34 #47700 by pocamil
hello, I am using a new software to generate woodworking stuff tool paths. The only problem is the lack of a post processor for linuxCNC and the vendor said they do not plan to add it.

So, I got a pp for mach3, maybe someone can help and configure it to work with linuxCNC, I know nothing about this kind of stuff, so any help is greatly appreciated.

thanks a lot!
Poca
* -----------------------------------------
* Output for MachII or MachIII with Arcs, mm
* -----------------------------------------
* >>>>>>>  File Format Key <<<<<<<<<<<<<
* Asterisk (*) denotes Comment Lines. 
* Text following * is Ignored by processor.
* Characters contained in < > are variables.
* Variables are followed with properties
* Numeric values in < > are ASCII characters.
* Variables contained in {} are commands.
* -----------------------------------------

* ------  Variables Used in Comments  -----
* Job Name = <JobName>
* Name for Tool Path = <PathName>
* Name for Tool = <ToolName>
* Name of G-Code File = <GCodeFile>
* Name of Material = <MatName>
* Name of Toolset = <Toolset>
* Load FaceUp/FaceDown = <LoadFace>
* Material Width = <MatW>
* Material Length= <MatL>
* Ascii character =<##> where ## is char number
* -----------------------------------------

* ---- Variables Used by Post File --------
Start Variables

* Post File Extension
<FileExtension>
Value = txt

* Units (Inch or mm)
<Units>
Value = mm

* Start Line Numbering
<LineNumStart>
Value = 10

* Line  Numbering Increment
<LineNumInc>
Value = 10

* Maximum Line Number
<LineNumMax>
Value = 999999

* Arc Length Max (if no G2, G3)
<ArcMax>
Value = 0.01

* Line Numbering
<N>
Always = Yes
Character Format = N
Numeric Format = 1.0
Factor = 1

* Material Width (Short) Axis as X
<MatAxis>
Value = Yes

* Z Zero at Bottom of Material
<ZZeroBot>
Value = No

* Y Zero at Bottom Left of Material
<YZeroBL>
Value = Yes

* Tool Number
<T>
Always = Yes
Numeric Format = 1
Factor = 1

* Spindle Speed
<S>
Always = Yes
Character Format = S
Numeric Format = 1.0
Factor = 1

* Feed Rate
<F>
Always = No
Character Format = F
Numeric Format = 1.1
Factor = 1

* Plunge Rate
<P>
Always = No
Character Format = F
Numeric Format = 1.1
Factor = 1

* X Position
<X>
Always = No
Character Format = X
Numeric Format = 1.4
Factor = 1

* Y Position
<Y>
Always = No
Character Format = Y
Numeric Format = 1.4
Factor = 1

* Z Position
<Z>
Always = No
Character Format = Z
Numeric Format = 1.4
Factor = -1

* X Home Position
<XH>
Always = Yes
Character Format = X
Numeric Format = 1.4
Factor = 1

* Y Home Position
<YH>
Always = Yes
Character Format = Y
Numeric Format = 1.4
Factor = 1

* Z Home Position
<ZH>
Always = Yes
Character Format = Z
Numeric Format = 1.4
Factor = -1

* Relative Arc Center I Position
<I>
Always = Yes
Character Format = I
Numeric Format = 1.4
Factor = 1

* Relative Arc Center J Position
<J>
Always = Yes
Character Format = J
Numeric Format = 1.4
Factor = 1

* Arc Radius
<Radius>
Always = Yes
Character Format = R
Numeric Format = 1.4
Factor = 1

* --------- End Variables  ----------------

* --------- Commands Used  ----------------
Start Commands

* Start of File  (Output at start of g-code file)
{Start}
( Mozaik Output for Mach2/3 )
( <GCodeFile> )
( Material Size)
( X= <MatW>, Y= <MatL>)
( Material Name )
( <MatName>)

(Tool used in this file )
(<ToolName>)
<N>G00G20G17G90G40G49G80
<N>G70G91.1
<N>T<T>M06
<N> (Tool=<ToolName>)
<N>G00G43<ZH>H<T>
<N><S>M03
<N>(Toolpath=<PathName>)
<N>G94
<N><XH><YH><F>


* Command for Rapid Move
{RapidMove}
<N>G00<X><Y><Z>

* Command for First Feed Move
{FeedMove1}
<N>G1<X><Y><Z><F>

* Command for Feed Move (Following G0)
{FeedMove}
<N><X><Y><Z>

* Command for Plunge (Following G0)
{PlungeMove}
<N>G1<Z><P>

* Command for First CW (ClockWise) Arc
{CWArc1}
<N>G2<X><Y><I><J><F>

* Commands for CW (ClockWise) Arc
{CWArc}
<N>G2<X><Y><I><J>


* Command for First CCW (CounterClockWise) Arc
{CCWArc1}
<N>G3<X><Y><I><J><F>

* Command for CCW (CounterClockWise) Arc
{CCWArc}
<N>G3<X><Y><I><J>


*End of File ( Commands for end of File )
{End}
<N>G00<ZH>
<N>G00<XH><YH>
<N>M09
<N>M30
%


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05 Jun 2014 13:34 - 05 Jun 2014 13:41 #47707 by ArcEye
Hi

Before trying to re-invent the wheel, have you checked that none of these work?

wiki.linuxcnc.org/cgi-bin/wiki.pl?Cam_Post

Secondly, what is wrong with the output from this post processor that needs changing?

Have you tried it, what errors do you get?

A lot of mach code will run without any major problems.
On a quick scan, change the txt to ngc in the below and see where it gets you.
* Post File Extension
<FileExtension>
Value = txt

If you do need assistance you will need to attach some code you are converting, the resultant output and the error messages you get loading it.


regards
Last edit: 05 Jun 2014 13:41 by ArcEye.

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05 Jun 2014 18:19 #47714 by BigJohnT
What CAM software is it?

Just guessing but the first thing I'd try is to turn off the useless line numbers.
* Line Numbering
<N>
Always = No

JT

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06 Jun 2014 07:33 #47739 by pocamil
ok, this is the code the software created, its called Mozaik
( Mozaik Output for Mach2/3 )
( test mdf 18 S1H.NGC )
( Material Size)
( X= 1820, Y= 2700)
( Material Name )
( mdf 18 W=1,820 L=2,700)
(Tool used in this file )
(5mm Drill)
N10G00G20G17G90G40G49G80
N20G70G91.1
N30T1M06
N40 (Tool=5mm Drill)
N50G00G43Z-20.0000H1
N60S18000M03
N70(Toolpath=HoldDowns)
N80G94
N90X0.0000Y0.0000F3812.0
N100G00X632.1569Y14.3510Z-20.0000
N110G00Z-6.4000
N120G1Z3.0000F1525.0
N130G00Z-20.0000
N140G00Z-20.0000
N150G00X0.0000Y0.0000
N160M09
N170M30
%

and error message says:

Near line 11 of /home…..test.ngc:
Unknown g code used

not sure what to do.

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06 Jun 2014 13:20 #47742 by ArcEye

and error message says:

Near line 11 of /home…..test.ngc:
Unknown g code used

not sure what to do.


Count down 11 lines, on line above that is G70G91.1

Look in the gcode guide
www.linuxcnc.org/docs/html/gcode/gcode.html
and you find G70 does not exist in linuxcnc.

This is what error messages are for.

Is this the raw output or processed? It still has line numbers.

regards

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