Final Year Project 2 (Week 9)

Week 9

Tittle of activity:

Make a drilling process after etching the circuit design.

Description:

Holes through a PCB are typically drilled with small-diameter drill bits made of solid coated tungsten carbide. Coated tungsten carbide is recommended since many board materials are very abrasive and drilling must be high RPM and high feed to be cost effective. Drill bits must also remain sharp so as not to mar or tear the traces. Drilling with high-speed-steel is simply not feasible since the drill bits will dull quickly and thus tear the copper and ruin the boards.

Procedure:

1.  In this project, I am using the Pro’s Kit super mini drill 12V to make the drilling process (Figure 1).
2. Next, drill the holes using a driller (Figure 2).
3. This is the result after the board had been rubbed by sandpaper to remove the remaining copper that not been covered by carbon ink. Lastly, this circuit is ready to be constructed with the components (Figure 3).

      Outcome: