you have to calibrate the saw! i think you will be more accurate, under 1mm errors. the speed that you selected was too hi, for copper or aluminium, not for mild steel. select the middle speed. is a diy tool, good for those who love working with metal, to make a gate, iron door, etc. good luck!
you have to calibrate the saw! i think you will be more accurate, under 1mm errors. the speed that you selected was too hi, for copper or aluminium, not for mild steel. select the middle speed. is a diy tool, good for those who love working with metal, to make a gate, iron door, etc. good luck!