Page 144 - CNC Robotics

Chapter 6 / The Frame

from the 3.5- X 3.5-inch material was used to cut the gantry bea r-
ing sup po rt pieces (see Figure 6.2) .

Don 't forget to bring a tape mea sure an d a straight edge with you
to make sure the steel you use isn 't warped or ben t. The guide rail
supports must be straig ht. If they are not straight, ad justing the
rail heig ht along the length will become more difficult. And if the
cross mem bers aren't straight, the axis tra vel will be over an
uneven surfa ce, maki ng material positioning very frustrati ng.
Remember that st raight is good and rusty doesn 't matter.

Figure 6.2
Scrap steel.

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