Milling PCB workflow


Using Eagle,, InkScape and Fusion 360

Nonsense demo circuit and PCB layout

  • Make circuit and PCB layout in Autodesk Eagle (version 9.4.0)
  • File > Generate CAM data
  • Click OK. This will generate a zip archive with Gerber files (2D vector files used for PCB manufacturing).
  • Unzip the .zip file and open the GerberFiles folder.
  • Open to convert the desired Gerber files to SVG vector files.
  • Open the desired .SVG files in Inkscape.
  • use view > display mode > normal / outline to analyse the vector image.

Seeing the image in the outline display mode (right), it becomes apparent that the traces have a width of zero mm.

  • edit > select all (ctrl + a)
  • object > ungroup (shift + ctrl + g)
  • the circles and squares are clones from hidden shapes. select one clone-object.
  • edit > select same > Object type (shift + alt + a)
  • file > clone > unlink clone (shift + alt + d). The clone objects have now been changed to circle and rectangle objects
  • edit > select all
  • path > objects to path
  • path > stroke to path
  • path > break apart
  • path > union
  • file > save as Choose SVG.

Now you have a proper outline

  • insert the SVG file in fusion 360
  • set scale to 0,003779527597 (The dimensions set in Eagle are correct in InkScape, but with scale set to 1, 1,27mm in eagle becomes 336,02083mm in Fusion 360)
  • select contours, extrude and configure setup and trace operation for milling

  • isel_icv4030/milling_pcb_s.txt
  • Last modified: 2019/07/05 07:41
  • by formlab