Page 293 - Making things move_ DIY mechanisms for inventors, hobbyists, and artists
P. 293
270 Making Things Move
5. Loosen the chuck so the bit is free. Slowly raise the drill press.
6. Place the rod, shaft, bolt, or whatever you want to drill a hole in the center of
into the drill chuck. Tighten it and make sure it is still aligned with the bit by
lowering it down for inspection (see Figure 9-6).
7. If your part is metal, dab some WD-40 or other lubricant/coolant onto the drill bit.
8. Turn on the drill press. Using high speed and very little pressure, lower the drill
press with your part in the chuck onto the bit. It might vibrate and skip a little
initially, but keep pushing until the bit starts drilling and finds the center.
9. Slow down the drill and apply more pressure.
10. Turn off the drill press and inspect your work.
FIGURE 9-6 Part in drill chuck ready to go (credit: Vik Olliver)
