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  • neptuno555 commented on josemivaz's instructable Laser Printed PCB's, Perfect and Easy.3 months ago
    Laser Printed PCB's, Perfect and Easy.

    Try the "Toner Transfer Paper" by Pulsar, is great stuff. The blue film is no good.

    About etchant: don't spend time trying everything. The best, that is used by the machines and also works great at home, is a 30 to 40% solution of Nitric Acid. It is also easy to dispose, just dissolve it with abundant water and hit the drain. Use a small fan to disperse the irritant fumes.

    Right after etching, I spray with Shellac, it will take solder at any time, and it's a great flux.

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  • neptuno555 commented on Proto G's instructable 9 Different Desoldering Techniques1 year ago
    9 Different Desoldering Techniques

    I find that th easiest way is to use a hot air PVC soldering iron that has no temperature control. You find the best combination of temperature and airflow that will melt and blow away the solder. Piece of cake.

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