very good advice and above all common sense lol. Just a bit worried ive bought a lemon here, paid 430 delivered for this machine, its only going to be doing light work as I am a composite specialist so it will be engraving plates I have fabricated my self. The material surface is usually pretty soft, but can be abrasive. My colegue managed to get the machine connected up and moving off the arrow keys last night but unable to get the mach 3 to do anything. Going to have another go later today