Spark Fabrication tracing sheet · A3 · dottedPrint at 100% (“Actual size”, no scaling). Lay your tools between the four black squares, keep a finger's width between them, and photograph the whole sheet from straight above on a darker surface. Upload the photo in the foam insert designer and it scales itself. Long tools: butt two or three sheets together edge to edge, no gap and no overlap. The dots tell the designer where a shiny or chrome tool really is: a dot under the tool vanishes, a dot in a shadow stays.