With commercialization plans ahead and with the goal to ensure and to preserve the quality, while curbing maintenance cost, ProDe equipment was subjected to regular service. After several days of engineering checkups ProDe equipment is declared again Ready to Use. Equipment maintenance coast and material price is still considered to be on a higher end, for powder 3D printer, as it is on the top of the line, for creating the highest quality 3D models, prototypes and parts. ProJet660 is among the highest rated 3D printers with score 8/10 (rating by 32 owners): Rating is available on 3Dhub.com https://www.3dhubs.com/3d-printers/projet-cjp-660pro