lateral i e x axis and or y axis positions of the support plate 46 and any substrates carried by the support plate 46 in other embodiments the actuation element 50 may enable automated movement of the support plate 46 e g by way of one or more motors and controls associated with the motor s in addition to showing the primary elements of an embodiment of a movable platform fig3 shows a specific but non limiting embodiment in which those elements may be secured to one another specifically fig3 illustrates the use of screws to secure the various elements to one another in intended arrangements other options for securing various elements of a moveable platform 10 to one another include the use of rivets welds brazing adhesive materials press fits interferences fits and the like in addition to enabling movement of one or more substrates not shown within the chamber 4 fig1 of a dry ice blasting system 1 fig1 the movable platform 10 may simplify the process of arranging the one or more substrates over the platen 7 of a dry ice blasting system 1 since the movable platform 10 is configured to be removed from the chamber 4 fig1 of the dry ice blasting system 1 one or more substrates may be placed on an uppermost support plate 46 of the movable platform 10 without the impediments that would otherwise be presented by various features defining the chamber 4 of the dry ice blasting system 1 with each substrate in place upon the uppermost support plate 46 the movable platform 10 may then be placed into the chamber 4 and the substrate s may then be subjected to dry ice blasting as an alternative to placing one or more substrates directly on the platen 7.