... boss on the Xuron cutter but works equally well on box joint side cutters. It is not suitable for cheaper single joint side cutters as there is nothing to clamp to. The scale is simply a bit of a cheap plastic ruler painted white on the back and Araldited to a bit of bent brass with a spacer underneath to get the height level with the cutting edge. The only slight difficulty I found was getting my head round which way to bend the brass to match the angle of the cutter. Regards Geoff Attachment: attach_368_589_PA160023.JPG 2211 posted: 16 Oct 2008 19:28 from: polybear Martin Wynne wrote: Is that SRBP paper/resin copper laminate or glassfibre? Hi Martin, I remembered I had the left-overs of an SMP Turnout kit tucked away, so I tried cutting some of the PCB Strip (measured at 1.16mm thick) with my Proops Chopper- it took a fair bit of pressure on the handle but it managed it. Maybe Paul Boyd's aluminium insert helps, or maybe he uses a better quality blade (mine is ...