How to make a complete circuit version?
The corrosion of the printed board repeatedly with water cleaning. Wipe off the paint with the banana water, and then clean it several times to make the printed board clean without leaving the corrosive liquid. Put a layer of rosin solution to dry.
Corrosion of the copper plate into the liquid of ferric chloride.
The stencil tile in the steel plate, the plate will pen drawing according to the ratio of 1:1 in a stencil, stencil plate diagram according to the size of the circuit board cut, and the flat on the copper clad plate. With a small amount of paint and talcum powder into thin thick suitable materials, with a brush dipped in India mixed materials, evenly coated with wax paper, repeated several times, can be printed on the printed circuit board (laminate).
According to the size of the layout of the layout of the copper plate, so that it is consistent with the actual size of the circuit diagram, and keep the copper plate clean.
