Hot-wire cutting is 2.5D: it extrudes a flat profile straight through the block, so letters and logos come out as prismatic shapes (the outline pushed through the foam's thickness). Import the artwork as an SVG or DXF outline, clean it (single closed paths, no stray nodes), and the tool turns it into a cut path.
Keep strokes thicker than your kerf so thin parts survive, and remember a hot wire cannot cut a fully enclosed hole without an entry slit — counters in letters like O, A or e need a lead-in cut to the edge. https://cncfoam.com SVG cleaner strips DXF/Inkscape leftovers that crash parsers, so run messy files through it first.
Keep strokes thicker than your kerf so thin parts survive, and remember a hot wire cannot cut a fully enclosed hole without an entry slit — counters in letters like O, A or e need a lead-in cut to the edge. https://cncfoam.com SVG cleaner strips DXF/Inkscape leftovers that crash parsers, so run messy files through it first.