Page 157 - CNC Robotics

CNC Robotics

to use a handheld drill for the holes, so I rented an electromagnetic
drill press, a wonde rful too l (see Figure 6. 25).

Figure 6.25
Electromagnetic drill
press.

I set the dr ill press in place an d lined it up, flicked the switch, and
it was clamped in place. I wanted the holes to be as sq uare to the
top surface as possible because I needed to drill access ho les from
the bottom of the beam under each rail support bo lt hole (see
Figure 6.26).

After dri lling the holes, I put a long bit in the chuck and dr illed
through the bottom of the beam to create a guide for the large
access hole (Figu re 6.2 7).

I next flipped the fram e over and proceeded to drill the acces s
holes with a 3/4-inch drill bit (see Figure 6.28) .

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