Designed to make the working distance calibration more straightforward and easy-to-follow, this item can help you set the position of your engraving and cutting laser module to 35 or 60 mm from the working plane. This object has been released to support engraving and cutting laser heads from Opt Lasers. The file has been originally shared through the webpage: https://optlasersgrav.com/ To discover the advantages of adding a blue engraving and cutting laser module to your CNC machine, click on the link: https://optlasersgrav.com/blue-laser