Page 154 - CNC Robotics

Chapter 6 / The Frame

I laid out the ho les on a piece of masking tape pulled down the
middle of the support rails. 1 like to use masking tape to lay out
drilling locations so the marks are easily visible and quickly
cha nged by rea pplying new tape. 1 fou nd the center of the first
support beam and drew a line from end to end using a straight
edge (see Figure 6.20) .

Figure 6.20
Find center.

Sta rting from a chosen end, 1 marked the location of each hole at
the ce nter line (see Fig ure 6.21).
I then taped the ce nter of the opposing support bea m an d found
the ce nter at the end at which I had started marking the hole loca-
tions on the first beam (see Figu re 6.22).

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