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projects:laser_cutting_from_pepakura [2013/11/06 12:17] (current)
59.167.251.107 created
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 +====== Laser Cutting from Pepkura ======
  
 +contact: deece — Sun, 17/06/2012 - 12:45pm
 +
 +This tutorial shows how to export outlines from [[http://​www.tamasoft.co.jp/​pepakura-en/​|Pepakura]] to be cut on a laser cutter/​engraver. This tutorial assumes you are using Windows 7.
 +
 +=====  Installing a Postscript Printer Driver ​ =====
 +
 +  * Click "​Start",​ "​Devices and Printers"​
 +  * Click "Add a printer"​
 +  * Click "Add a local printer"​
 +  * Select "Use an existing port", "​FILE:​ Print to File"
 +  * Click "​Windows Update"​ and wait...
 +  * Select the "​Generic"​ manufacturer and the "​MS Publisher Color Printer"​
 +  * Complete the wizard
 +
 +=====  Install PSToEdit and prerequisites ​ =====
 +
 +  * Download and install Ghostscript and GSView from the [[http://​pages.cs.wisc.edu/​~ghost/​|Ghostscript website]]
 +  * If you are on a 64 bit machine, copy C:Program Filesgsgs9.05bingswin64c.exe to C:Program Filesgsgs9.05bingswin32c.exe
 +  * Download and install [[http://​www.pstoedit.net/​|PSToEdit]]
 +  * Download and install [[http://​inkscape.org/​|Inkscape]]
 +  * If your laser cutter speaks G-CODE, install [[http://​www.cnc-club.ru/​forum/​viewtopic.php?​t=35|GcodeTools for Inkscape]]
 +
 +=====  Print Your Model  =====
 +
 +  * Launch Pepakura and open your model
 +  * Set the page up to match your laser:​ Select "​File",​ "Print and Paper Settings",​ "Paper Size" ->​ "​Other",​ "​Width"​ -> "​305",​ "​Height"​ -> "​220",​ "Side Margin"​ ->​ "​30",​ "​Top/​Bottom Margin"​ ->​ "​15"​
 +  * Select "Print Lines clearly (Vector Print)"​
 +  * Select "Print page number"​ and "Print Alignment marks for multiple pages",​ "​OK"​
 +  * Select "​2D Menu",​ "​Recalculate Parts Layout",​ "​Auto",​ "​OK"​
 +  * Select "​File",​ "​Printer Setup",​ "​Size"​ ->​ "​A4",​ "​Orientation"​ ->​ "​Landscape"​
 +  * Select "​File",​ "​Print",​ "​MS Publisher Color Printer"​ and save the printout (do not adjust the scale)
 +
 +=====  Convert to SVG  =====
 +
 +  * Locate your file in Windows Explorer and open it in GSView/​GSView64. You should have a menu above the image, if not. it means you have opened it with GSWin rather than GSView
 +  * Select "​Edit",​ "​Convert to Vector Format"​
 +  * Select "​SVG"​ and click "​OK"​
 +  * Select the pages to convert
 +  * Save the file
 +
 +=====  Prepare Your SVG  =====
 +
 +  * Open the SVG in Inkscape
 +  * Set the page up to match your laser: "​File",​ "​Document Properties",​ "​Default Units" ->​ "​mm",​ "​Width"​ ->​ "​245 mm", "​Height"​ -> "190 mm"
 +  * Note that the scale of objects may have been lost in the conversion. Rescale the objects if necessary:​ Select the group of objects, click the aspect ratio lock (next to the width), then set the width to 245 mm and X & Y to 0
 +  * Draw 2 circles to act as registration marks between the printout and laser cutting: First: W=1 H=1 X=-0.5 Y=-0.5, Second:​ W=1 H=1 X=244.5 Y=189.5 (These circles will be centred on 0,0 and 245,190)
 +  * Save your image for future reference
 +  * Print your image to your printer. If the edges are cropped, you may get better results by saving as a PDF and printing from Acrobat.
 +
 +=====  Convert the Outlines to Gcode  =====
 +
 +  * Delete all bitmaps, registration marks, text and other objects you don't want lasercut. Note that the bitmap textures are a grid of individual bitmaps, and need to be deleted individually. You can Select All (control-A) to see what objects you have left
 +  * "​Layer",​ "Add Layer"
 +  * "​Layer",​ "​Layers"​
 +  * Select all the objects
 +  * "​Object",​ "​Group"​
 +  * Reselect the new group
 +  * "​Layer",​ "Move selection to layer below"
 +  * Confirm the objects are now on the new layer by clicking the show/hide icon (eye) in the layers tab
 +  * "​Path",​ "​Object to Path"
 +  * "​Extensions",​ "​GCodeTools",​ "​Orientation Points",​ "​2 Points Mode", "​Apply"​
 +  * Select the new orientation points and relocate them to X:​ 0 Y :​ 0
 +  * "​Extensions",​ "​GCodeTools",​ "Tool Library",​ "​Default",​ "​Apply"​
 +  * Adjust the settings using the text tool to suit your laser. For Alastair'​s laser:​ Diameter:​ 0.3  Feed 400   Spindle RPM: 100
 +  * "​File",​ "Save As", "​filename_laser.svg"​
 +  * "​Extensions",​ "​GCodeTools",​ "Path to GCode",​ "​Apply"​
projects/laser_cutting_from_pepakura.txt · Last modified: 2013/11/06 12:17 by 59.167.251.107