Homebrew PCBs

My first post here in this fascinating group :)

The trick I use for repairing the finest of damaged traces, involves 
using conductive paint.
This is usually quite expensive to purhase as a generic product 
through electronics outlets, but can be obtained from most car 
parts shops as 'windscreen/windshield heater repair paint'.

Acurately position 2 lengths of low-tack MASKING tape, either side of 
the broken track. Press in place firmly. Using a small fine brush, 
paint over the broken track (don't 'blob' the paint - thinner is 
better). It dries very quickly, so you can remove the tape after only 
a minute.

Masking tape is preferable to clear sellotape, as it absorbs all of 
the excess paint and prevents any 'fringing' at the edges.

Having a very low resistance of typically <0.1 ohm / inch, it will 
carry heavy currents and makes a excellent permanant repair !

Richard