I have a model import where something is going wonky.
If I keep the merge type as add my image is there. when I have is subtract it disappears.
Why would everything disappear if I am subtracting from the stock. If I unclick invert and have it add it chows up just fine.
When I then take it to toolpaths click 3d rough it does not let me select “use current selection” I can click select by layer but then it gives me an error message “the selected layer has no elements on it”
The model is separate from the 2D ‘stock’. You need to create a 3D representation of the stock.
Create a rectangle the size of your stock. Select that rectangle & create a 3D component using Flat, Height: (your stock thickness).
Now import your image & subtract if from the previous flat component.