Painting in Metal with Selective Electroplating

The bed of a small CNC machine is shown. A plastic tub is on the bed, and in the tub is a sheet of metal under a pale green solution. In place of the spindle of the CNC, there is a rectangular orange tube extending down into the solution. A red wire runs to this tube, and a black wire runs to the sheet of metal in the tub.

Most research on electroplating tries to find ways to make it plate parts more uniformly. [Ajc150] took the opposite direction, though, with his selective electroplating project, which uses an electrode …read more Continue reading Painting in Metal with Selective Electroplating

A Spectrophotometer Jailbreak to Resolve Colorful Disputes

A long, rectangular electronic device is shown in front of a book of colour swatches. A small LCD display on the electronic device says “PANTONE 3005 C,” with additional color information given in smaller font below this.

The human eye’s color perception is notoriously variable (see, for example, the famous dress), which makes it difficult to standardize colours. This is where spectrophotometers come in: they measure colours …read more Continue reading A Spectrophotometer Jailbreak to Resolve Colorful Disputes