Page 285 - CNC Robotics

Chapter 12 I Examples

I used the foam to keep the hardboard above the tab le surface
because foam offers very littl e resistance to the cutting too l. It is
al so firm enough to maintain the position of the material being cut.

I also acqui red a tile-cutting bit that is liS-inch In diameter.
Normally th is type of bi t would be used to cut soft-body tile like
wall tile. Wall tile has a softer body than floor tile, and wall tile
w ith a white clay body is the softest and easiest to cut. I had some
4- 114 X 4- I /4-i nch wa ll tile lyi ng aro und that I used for this
example. First I built a little jig to hol d the ti le in position. as
shown in Figure 12.IS.

Figure 12.18
Jig to hold tile.

Th e jig is recessed a littl e less tha n the thick ness of the tile on the
th ree mite red piec es of MOF. Th e piece of pi ne at the front of th e
jig keeps the ti le from moving out of the jig and the two pieces
screwed to the mitered MOF clamp the tile in place. keepi ng it from
movin g up and down. In CorelOraw I made a drawing of a star and

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