In this instructable, you will learn how to me a solder pen. While soldering, lead gets heated and burns our hands. So I made this solder pen to get rid of the burns. Tools required BOM (bill of materials):solder ball point pengel penspring Step 1 Take ball point pen and remove its refill. you...By: yhdesai
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from Instructables: exploring - technology - robots http://ift.tt/1wOPV9k
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