We have an older blog article on using Fusion 360's CAM workflow with the laser cutter.
This may still be useful, but it's a bit involved to do, and is often not worth the trouble. This page documents a simpler alternative.
I examined in detail and found that my DXF was using a multi-point spline format that LaserSoft apparently doesn't like. I fixed it by opening and re-saving the DXF in Inkscape. If you're not careful, you can inadvertently change the scale. Here's what worked for me. Note that I designed the original document using millimeters. I don't know what happens if you use inches.
In Fusion 360:
- I like to create a new component containing copies of the bodies I want to cut. Then I re-arrange them for efficient use of material, aligning all the faces in a plane. The 'align' and 'point-to-point' tools are valuable for this. See a picture of what I'm talking about in the blog article above.
- Then create a new sketch; project all the parts into it, and close the sketch. Do not add any dimensions, construction lines or any other guff to this sketch; it should contain only the lines to be cut. Any text elements must be exploded.
- Right-click the sketch and choose 'save as DXF.' Fusion does not offer any export options.
(I'm using version 0.92 on OSX, in case it ever matters.)
- Create a new document
- If necessary, turn on the 'Tools Control Bar' via 'View; Show/hide.'
- Choose import and select the dxf file created above.
- Inkscape offers a dialog full of import options. Set them like so:
- scaling method: manual
- scale factor: 1
- X axis origin: 0
- Y axis origin: 0
- character encoding: latin1
- text font: Arial
- The newly imported artwork will be selected, and appears right under your mouse, wherever it happens to be.With the artwork still selected, enter 0 into the X and Y boxes in the 'Tools Control Bar.'
- The selection will now align with the lower-left corner of your page. Press ESC to unselect. It's OK if the artwork is bigger than your page.
- Save as: "Desktop Cutting Plotter (AutoCAD DXF R14) (*.dxf)" and choose a new filename.
- Now you get another dialog. Set options like so:
- Uncheck "use ROBO-Master..."
- Uncheck "use LWPOLYLINE..."
- Base Unit: mm
- Encoding: Latin1
- Layer export selection: All
- Layer match name: leave blank
The resulting DXF may have elements at different coordinates, but their relative position and size will be correct, which is all that matters.