If you want to engraving and cutting JPG or other format picture by the laser machine , how should you do? First, use PS software amend this picture , and then output into BMP format. Second, Put the BMP file into the RDworks software , and setting the engraving and cutting speed and other parameter. Then origin-frame-start ---The machine begaining work. The 1390 laser machine is with RECI W8 laser tube, so maybe engraving effect is not good. Please understand and note: Small laser power suitable engraving, such as 40w 60w 80w; Big power suitable cutting. Such as 100w 130w 150w 180w,etc..... If you want to learn more details of the laser machine , please contact us: Email: info@starmacnc.com Tel/Whatsapp/Wechat:+86 15194126152 Web:www.starmacnc.com Jinan starma machinery equipment co.,ltd ---CHINA STARMACNC welcome you ! Professional for any laser machine, fiber laser cutter, co2 laser, laser marking, cnc router and plasma ,etc cnc machines....