cara Print Tray: the key to speed & precision The resin tray is one of the big secrets to the exceptional speed of cara Print 4.0. The non-clouding (fogless) and non-reactive design of the resin tray means that each new layer can be quickly and easily lifted off the surface of the tray, substantially increasing build speed and the overall surface quality on the z-axis. For cost calculations, we generally assume these trays will last for approximately 600 prints. However, since the tray never actually clouds, it can be used indefinitely or at least until it is subjected to external damage. Compare that to the industry-standard PDMS trays, which only last for about 15 prints and lead to much higher long-term costs and lower quality. Two resin trays are included with the purchase of cara Print 4.0.