Step 8: Final steps

Picture of Final steps
P40303643 copia.jpg
Tin all the parts where a component is going to be soldered. Then solder all the components in place and clean the remaining flux or resin.

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CoreyCoop1 year ago
What is the mix of acid to hydrogen peroxide, or is it a product off the shelf?
achand8 CoreyCoop11 months ago

Generally 30% concentrated HCL and 2-3% conc H2O2 in equal quantities will etch the board in 1-2 minutes.

sydkahn1 year ago

on the anti-adhesive baking paper - is that the same as "Parchment Paper?

pinomelean (author)  sydkahn1 year ago
Yes, i think so.

FWIW - I just tried a test print on some Reynolds and Reynolds parchment paper with an HP Laser Printer. When R&R claim non stick - they really mean it. You can actually rub the toner off it. I am going to try and iron a pattern on a board - I will be very, very, careful not to smudge the print.

jslarve1 year ago
Good job!But I personally prefer etching off the unwanted copper by using a sponge to rub it off,on which a small quantity of the etching solution is poured and by this way you could practically complete hundreds of PCBs with a small bottle of the etching solution.Also you don't have to keep a close eye on the pcb while it is immersed into the solution because using a sponge can give faster results,even within a few seconds.
luiscalt1 year ago
Excelente manual. Gracias por compartirlo.
wa7jos1 year ago
You can skip the tinning step if you use a flux pen.
Just apply the liquid flux to the pads, insert the components, and the solder will flow like melted butter.
Nicely done. I love the stripped sample. That's genius. If you want to push this process to it's limits for doing small surface mount stuff you can see how I do it here: