i need to know some methods of joining copper together. im making a light at school and it has copper bits. i just need to join some tall copper bit to a copper base, pretty random i know and im failing at the minute. does anyone know of any methods and/or have some good links? oh and if you have suggestions for a different base thats cool. its got some random bits which will be copper and the light will go in between some how. i just need to write about the joining methods