PCBoard Process using LaserJet Toner Method found at: Printed Circuit Boards for the Masses. The first step is to create a schematic of the circuit to be printed; this image is then printed on glossy paper with laser printer. The printed image/toner is then transferred to the clean copper board with a hot iron; after this the copper + paper are placed in a hot water bath to soak. Once paper start to soften (10-30 mins) it is removed leaving behind the laser ink toner (some traces of paper may have to be removed). When the paper is removed the copper board is placed in an acid bath; occasionally agitating the fluid + checking the board. After 30+ mins, all of the undercovered copper dissolves leaving behind the circuit. The last step to is clean the remaing copper traces with acetone to remove any paper + ink. At that remains is drilling the holes. Finish. Another option for touching up the ink toner or drawing the circuit is to use a permanent marker to create/fix traces. (Please refer to the link above for a detailed description).Here is a few images of the soaking process:
No comments:
Post a Comment