maby one or two tips more...
polish the casings prior to plating them... the smooth surface plates smooth !
when they are plated with copper , stick then in some cow **** ...
yes ... i said cow **** .....
leave them there for some time and you will end up with a flamed look !
the ammonia in the cow droppings darken the copperlayer , and since the ammonia varys from place to place in the dropping you end up with flamed brass!
dont ask me where i got this tip....
second , if you wish to plate steel , the pre treatmend would be a little different.
first step woul be to degrease it with the previously mentioned warm vinager bath ... after some fine sanding it ...
give it a dip in "zoutzuur" [zoutzuur is a dutch word ..google for american]
then rinse it off ..
the trick here would be to get the steel object already connected to the
regulator before it goes in the solution !
if you dont , it will catch some "contact copper" from the solution .
cause steel in coppersulfate raises some current of its own...
the contact copper compromises the adhesie of the plating.
so yes t bran ... youre knife will plate just fine ! google tells me that zoutzuur is hydrochloric acid , use it in mixed version with water.