Glass Etching 3D Printer

Dubbed jokingly the "LesterBot", this printer is little more than an XY table with a swiveled glass cutter moving over a glass surface, etching in a pattern that grows deeper with time. Topological features are possible to accomplish, making it a limited form of a 3D printer.

Other materials, cutters, or deposition heads may be fitted if they are light enough. The motors are plastic and also act as the bearings for the rollers, which accept bands of the correct length.

The control is fre