How can i solder on a PCb lacking etching? can i newly use solder?
Answers: Making your own PC boards without the fancy laser printers or transfers is really slightly easy!
There are two approaches you can follow:
1) Wire wrap the components from the underside of a 'perf board' (a laptop board full of holes, but no copper coating). No soldering necessary! Radio Shack deal in kynar wrapping wire ($3.99 for 50 ft) within a variety of colors:
http://www.radioshack.com/product/index....
and also the tool for $6.99
http://www.radioshack.com/product/index....
Very sudden and easy to use, and give a nice, neat, professional finish.
2) You can use the "copper trail" method you mentioned. Radio Shack also flog a complete do-it-yourself PC board kit for $15.99:
http://www.radioshack.com/product/index....
They are relatively jammy to make, but you'll inevitability the necessary equipment. The fastest (and cheapest) method to do this would be to draw the traces you need on a copper clad board, using a fine-point Sharpie pen (also call a 'resist' pen). Draw over the lines several times to get a correct, thick coating of ink. Then soak the board contained by ferric chloride etchant solution (also available at Radio Shack for $4.49 a bottle)
http://www.radioshack.com/search/index.j...
IMPORTANT! Pour the etchant into a plastic or glass container large ample to hold the PCB. DO NOT use a metal pan for this!
I don't remember exactly how long it take to remove the excess copper from the board, but something that size should take smaller amount than 30 minutes)... just maintain an eye on it every 5 minutes until it's done.
After rinsing the board off surrounded by runnung water, use a scrub pad to verbs the Sharpie ink off the remaining traces. The final step would be to drill the small holes needed for the LEDs (drill from the copper side). Of course, you could other set up the traces so that you didn't need the holes - only bend the LED leads and solder them directly to the copper traces.
Good luck near your project.
Not an expert just a guess in the order of this. If I am not mistaken, you want to have a sort of low for the solder to flow in to and specifically why you need the etching. Otherwise the solder will flow out of the conduit.
I guess you could create a channel by using the tip of the soldering iron to sort of etch a footpath.
But would the solder stick to the board? You don't want it pealing sour do you?
Check out this link at partsexpress.com
http://www.partsexpress.com/webpage.cfm?...
http://www.partsexpress.com/webpage.cfm?...
http://www.partsexpress.com/webpage.cfm?...
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