Homemade PCB with toner transfer
I created two PCBs using toner transfer method. You need:
- Glossy art paper (I used 100g/m²),
- Sand paper (type 500 or 600),
- Aromatic paint thinner,
- Laser printer or photocopier,
- Iron,
- Nail brush.
- Hidrogen-peroxid (30%),
- Salt acid (20%),
- Plastic container
Hidrogen-peroxid and salt acid are dangerous liquids. Do not touch them with bare hands. Use rubber gloves and safety glasses (the video maker set a bad example!).
Steps of making (for one sided PCB):
- Print the mirrored PCB image to the art paper.
- Clean the PCB with sand paper under running water.
- Put the art paper on the PCB (the toner powder should contact with the PCB not the iron) and iron it. It takes approx. 1 minute. Wait till PCB and paper gets cold.
- Put them under running water and remove the art paper. Probably you need brushes.
- Put the PCB into the plastic container and pour some salt acid to cover the PCB. Pour 15-30 ml hidrogen-peroxid to the container. Wait until unnecessary copper disappears.
- Remove PCB from the container and wash it.
- Use paint thinner to remove the toner powder.
Video of making PCB from a Hungarian site: http://pa-elektronika.fw.hu/
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