Page 279 - CNC Robotics

Chapter 12 / Examples

a Canadian dime as a size reference. (An American dime is about
the same size as th e Canadian dime used in th e image.)

With the engraver I used, the smallest size of text that can still be
read is 6 po int. A more accurate engraving tool would mo st likely
be able to produce smaller text. The next ima ge, shown in Figure
12.9, is of the same bulldog I plotted using a pen earlier in th is
chapter, shown engraved on aluminum beside some text.

Figure 12.9

Bulldog engraved in
aluminum.

Even though the engraving tool isn't the most accurate or precise
available, the CNC machine was able to guide it th rough the
engraving process w ith a remarkable degree of precis ion. Figure
12 . 10 shows a closer ima ge of the bulldog and the level of detail
achieved by a relatively imprecise tool.
Another vector image I chose to engrave contained a lot of small
lines to test the ability of the CNC mach ine engrave r combination.
The image in Figure 12.1 1 is of a church engraved in alumi num
w ith a Canad ian dim e for reference.

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