Step 6: Circuit - Preparation
Using a Sharpie or similar, carefully trace around the leads sticking through the board, and label them.
If you're using the type of veroboard that has strips running along it, rather than individual pads, you'll want to draw in "breaks" to stop short circuits now.
I drew lines between connections to visualize how it would be wired up.
This is optional, and it made things more confusing, so you might not want to.
Once you've confirmed that the circuit matches the diagram, you can drill-out the breaks.
Get a large drill bit and sit it gently in one of the holes where you want the break.
Hold the board steady and very slowly begin to drill. You do not want to drill more than is absolutely necessary.
Stop drilling once the copper track is removed from that hole. You must make sure that not copper from that track is left on the hole, otherwise a short circuit may occur.
Once the holes are drilled, go ahead and rub some steel-wool across the copper tracks to help them take the solder. You should still be able to faintly see the marks you made.