Homebrew PCBs

Removing sections of track or pads can be done several ways.

1.  A large drill bit just in a hand held chuck to cut the track away.

2.   A special Spot Face Cutter hand tool - Vero & others made them.

3.  Overheating a section of track after scoring it with a knife. If you 
need to remove sections, you can tack solder a wire on to act as a 
handle after overheating that section enough to soften the adhesive.  
Even cold, a soldered on wire, often gives enough purchase to pull a 
track section up.

4.  If you have resistance soldering equipment you can use that to put a 
high current very low voltage which will blow the track.  It can then be 
fairly easilly picked off.  I think that you could put a couple of 
pieces of wire in a instant heat soldering gun instead of the loop of 
wire used as an element & do the same thing.

5.  A knife blade can be used to lift the track but that is dangerous.

6.  A Dremel or other rotary tool.

Regards,
Brian.