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Of course, different materials and different cutters will have different kerf, you should test. Helpfully, Ponoko has experimented with their various materials and has created a table of how much material is burned away by the cutting laser (kerf) if you are using their services.

I warned about the issue of material removed by the cutting process, I decided to test with a sheet in one colour first.

A third colour for the frame might be nice. My design calls for pieces cut from 2 different colours to be put together and fit precisely. Not 3D assemblage, but a 2D graphic type design (see below). I find this approach is often faster than trying to extract something of exactly the right shape to use with boolean operations to produce the right clipping path.I wanted to make a laser cut Plexiglas design with interlocking and inset pieces using the Ponoko cutting service. To adjust the clipped area, do this:ĥ) Select the clipped object, then switch to the Node tool.Ħ) You should now be able to see your clipping path (if not, check the toolbar - there's a "Show clipping paths" button)ħ) You can move the handles of the inner rectangle to adjust the clipped area.Ĩ) If you need a more complex shape you can double-click on the green paths to add another node.ĩ) Keep adjusting the path until it clips the area you want.

Use it to clip your image as normal.Īt this point you should have a clipped version of your image, but the bit being clipped is not right. I usually give mine a bright green stroke, with no fill.Ģ) Draw another rectangle within it - it doesn't matter where, but I usually put it very roughly over the area I want removed.ģ) Select both rectangles and do Path > Difference.Ĥ) You should now have a path with 8 nodes (check the status bar). If you need a general area clipped, rather than a specific and pixel-precise area, I usually do the following:ġ) Draw a rectangle (with sharp corners) that covers your whole drawing.