On-demand repair of mobile device screens

A computer system comprising:

• a computer numerical control (CNC) machine equipped with a candle bit and a staging area, wherein:
• the candle bit includes an end-mounted applicator,
• a paste is coated on the end-mounted applicator, and
• a device is disposed on a free-floating mount of a platform of the staging area;
• one or more processors;
• and
• one or more computer-readable hardware storage devices that store instructions that are executable by the one or more processors to cause the computer system to at least:
• move the candle bit to a home position relative to the device, which is to be polished using the paste coated on the end-mounted applicator;
• rotate the candle bit at a predetermined rate such that the end-mounted applicator is also rotated;
• cause the end-mounted applicator to contact a surface of the device, resulting in the paste contacting the surface;
• and
• move the rotating candle bit in accordance with a predetermined pattern to cause the end-mounted applicator, which is coated with the paste, to polish the surface of the device.

A method for polishing a surface of a device, said method comprising:

• coating an applicator with a paste using a computer numerical control (CNC) machine, wherein the applicator is attached to a candle bit of the CNC machine, and wherein the device is disposed on a staging area of the CNC machine;
• moving the applicator and/or the staging area using the CNC machine such that the applicator is positioned above a selected area of the surface of the device;
• rotating the applicator at a predetermined rate using the CNC machine;
• moving the applicator and/or the staging area using the CNC machine to cause the applicator to contact the surface;
• and
• moving the applicator and/or the staging area using the CNC machine in accordance with a predetermined pattern, which pattern is selected to enable the paste and the applicator to polish the surface of the device, including a scratch on the surface.