Export gerber 274-X in mm

Zaid schrieb:

Hi all

 

I am trying to get the CAM processor to export gerber 274-x files using

mm instead of inches but i cannot seem to do it, does anyone know how?

 

Thank you

Add in eagle.def:

Type     = PhotoPlotter

Long     = "Gerber photoplotter"

Init     = "G01\nX000000Y000000D02\n"

Reset    = "X000000Y000000D02\nM02\n"

ResX     = 25400

ResY     = 25400

;Wheel    = ""

Move     = "X%0.6dY%0.6dD02*\n"    ; (x, y)

Draw     = "X%0.6dY%0.6dD01*\n"    ; (x, y)

Flash    = "X%0.6dY%0.6dD03*\n"    ; (x, y)

Aperture = "%s*\n"               ; (Aperture code)

Units    = mm

Decimals = 4

Info     = "Plotfile Info:\n"\

           "\n"\

           " Coordinate Format : 3.3\n"\

           " Coordinate Units  : mm\n"\

           " Data Mode         : Absolute\n"\

           " Zero Suppression  : None\n"\

           " End Of Block      : *\n"\

           "\n"

@GERBER_MM_33

Long          = "Gerber photoplotter with automatic aperture wheel

generation"

Wheel         = "" ; avoids message!

AutoAperture  = "D%d" ; (Aperture number)

FirstAperture = 10

Decimals      = 4

Units         = mm

@GERBERAUTO_MM_33

Long          = "Gerber photoplotter with RS-274-X aperture generation"

Units         = mm

Init          = "G75*\n"           \ allow positive and negative coordinates

                "G71*\n"           \ units are mm

                "%%OFA0B0*%%\n"    \ horizonal and vertical OFfset is 0

                "%%FSLAX33Y33*%%\n"\ Format Statement is Absolute (I for

incremental) 3.3

                "%%IPPOS*%%\n"     \ Image Polarity is POSitive (NEG for

nagative)

                "%%LPD*%%\n"       \ Layer Polarity Dark (C for clear on

negative planes)

                "%%AMOC8\n5,1,8,0,0,1.08239X$1,22.5\n"\ Octagons are

emulated with a circle (using 8 vertices)

                "%%\n"            ; and therefore the diameter must be

enlarged with '1 / cos(pi / 8)'

Reset         = "M02*\n"

Circle        = "%%AD%sC,%6.3f*%%\n"        ; (code, diameter)

Rectangle     = "%%AD%sR,%6.3fX%6.3f*%%\n"  ; (code, dx, dy)

Oval          = "%%AD%sO,%6.3fX%6.3f*%%\n"  ; (code, dx, dy)

; According to the RS-274-X specs there is an aperture macro

; primitive that allows us to specify an octagon (i.e. a polygon with

; 8 vertices). As some Gerber viewers seem to have problems with that,

; we would have to use a round shape for that.

; If your Gerber processor cannot handle the polygon primitive you may

; uncomment the following line and comment out the line after it:

;Octagon       = "%%AD%sC,%6.3f*%%\n"   ; (code, diameter) (looks like

there is no octagon, so we take a circle)

Octagon       = "%%AD%sOC8,%6.3f*%%\n" ; (code, diameter)

Annulus       = "%%AMAN%s\n1,1,%6.3f,0,0\n1,0,%6.3f,0,0*\n"\

                "%%\n"\

                "%%AD%sAN%s*%%\n" ; (code, diameter, inner diameter,

code, code)

Thermal       = "%%AMTH%sX\n1,1,%6.3f,0,0\n1,0,%6.3f,0,0*\n"\

                "21,0,%6.3f,%6.3f,0,0,45\n21,0,%6.3f,%6.3f,0,0,135\n"\

                "%%\n"\

                "%%AD%sTH%sX*%%\n"; (code, diameter, inner diameter,

diameter + 2mil, gap, diameter + 2mil, gap, code, code)

--

Mit freundlichen Gruessen / Best regards

Richard Hammerl

CadSoft Support -- hotline@cadsoft.de

FAQ: http://www.cadsoft.de/faq.htm