Computer-Controlled Engravings

ABSTRACT [RESUMEN]

We roughly describe how a computer-controlled machine for engraving prototypes of topographical maps was constructed given digitalized information of the maps. This machine was also used to engrave wooden plates. We designed and implemented software to manipulate files of control information fed by designs and figures created in a CAD system.

The machine is made up of iron cross-sections over which routers travel orthogonally over the piece of wood that is to be carved. Stepper motors are commanded from the computer using the information of a file of coordinates prepared off-line from the digitalized information of the figures which contains only straight lines.

This machine has been working for more than two years making more than one hundred thousand wooden plates.