A collapsible platform system is provided for converting an underlying support surface to a standing desk. The collapsible platform system converts the underlying support surface to a standing desk with a large work surface suitable for performing a variety of tasks, including handwriting-type and/or sketching-type tasks. A collapsible platform of the system includes a work panel with an upper surface that defines a work surface. The work surface may support a deskwork article being used at the standing desk. A support arrangement can collapse with respect to the work panel to change the collapsible platform from an assembled state an unassembled or collapsed state. The support arrangement has multiple panels, at least one of which is segmented. A connection joint is defined between the segments of the segmented panel(s) for facilitating assembling and disassembling of the collapsible platform while changing the collapsible platform between the assembled and collapsed states.

A removable ruler for manual ceramic cutters which can be rotatably mounted on the base of a manual ceramic cutter and which includes a rotary platform permanently secured to the base of the cutter by a rotary shaft; and two removable lateral extensions. The platform includes securing means for the rapid coupling and subsequent uncoupling of the lateral extensions.

A paperless blueprint drafting table system for full-scale viewing, editing, and annotating of paperless blueprints features a base having a pivoting table top located thereon. The table top features a planar table top surface. A table top aperture is centrally located in the table top. The table top is located at an adjustable angle with respect to the base. The system features a transparent window located in the table top aperture having a planar window top surface. The window top surface is located flush with the table top surface on a window ledge. The window is rigid, scratch resistant, and break resistant. The system features a display screen located in the base close to the window bottom surface. The display screen displays blueprints through the window for viewing, editing, and annotating via a stylus device.

A paperless blueprint drafting table system for full-scale viewing, editing, and annotating of paperless blueprints features a base having a pivoting table top located thereon. The table top features a planar table top surface. A table top aperture is centrally located in the table top. The table top is located at an adjustable angle with respect to the base. The system features a transparent window located in the table top aperture having a planar window top surface. The window top surface is located flush with the table top surface on a window ledge. The window is rigid, scratch resistant, and break resistant. The system features a display screen located in the base close to the window bottom surface. The display screen displays blueprints through the window for viewing, editing, and annotating via a stylus device.