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PCB etching instructions: Difference between revisions

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Ensure that there are no creases or folds, and that your paper/film is perfectly flat against the photo board!
Ensure that there are no creases or folds, and that your paper/film is perfectly flat against the photo board!


== PCB etching: Developer ==
== Developing ==


Put the board in the developer (tank A), at the moment the heater for the developer is broken { note: is this still true ? } so it takes longer than the 30 seconds. What you need to look for is all the copper is exposed when you check it. Only the tracks should be coloured (green with the uv exposure board).
Put the board in the developer ([[Equipment/PCB_etch_station#1st_Tank_-_Developer|tank A]]), at the moment the heater for the developer is broken { note: is this still true ? } so it takes longer than the 30 seconds. What you need to look for is all the copper is exposed when you check it. Only the tracks should be coloured (green with the uv exposure board).


Note : the developer in tank A is from Mega Electronics, also sold through Rapid. It works well with photo pcb material from the same source. It does NOT work with Maplin photo material !
Note : the developer in tank A is from Mega Electronics, also sold through Rapid. It works well with photo pcb material from the same source. It does NOT work with Maplin photo material !