You are right Clive, CorelDraw gives a line two sides, so I edited the Gcode to take out the return path along the 'same' route. Corel Draw is useful for the quick creation of geometric shapes, but you have to convert to curves or objects otherwise it doesn't stand a chance of getting the dxf right. I drew one spiral and then did a mirror copy to complete the tool path. I used to use AutoCAD some years ago, my son designed jewellery with it, but I don't get on with it for anything more than circles and squares with or without chamfered or radiused corners. OK for switch panels, but beyond my addled brain for owt else. I tried to import a file from CorelDraw to AutoCAD but it didn't work. Ironic that my son has a degree in 3D design and now sells high-end computer development packages and I was a computer consultant before I retired and am now pratting about with 3D design.

Still, it's time to hit the G&T. Happy Days Everyone.

Rob