The Shop > Electronics & IC Programing
Video on board etching
John Rudd:
--- Quote from: Brass_Machine on March 11, 2010, 10:25:13 AM ---Nice John! Whats it do?
Eric
--- End quote ---
They were programming interfaces for smartcards for sat tv.....
bright spark:
I'm fortunate to have a bubble etch tank for etching boards. The etchant, Ferric Chloride, is first heated with a built in heater, the board is then mounted in a holder and submerged vertically. You then switch on a small pump that blows bubbles up past the board (just like a fish tank aeriating block). This washes away etched copper, and speeds up etching time. It is fast, when properly warmed up it etches a board in a few mins. Another advantage is the etchant stays in the tank and can be left in the garage out of the way, so human contact is minimised.
Ken
andyf:
I use NaOH (sodium hydroxide/caustic soda/lye) for developing, and ferric chloride for etching. If the board is going to lie flat on the bottom of my etchant tank (aka whatever plastic box I can lay my hands on - usually a food container), I put a bit of plastic rod under the middle of the board, so that one end can be pushed up and down with another bit of plastic rod in see-saw (teeter-totter) fashion every now and again, to agitate the etchant.
Andy
HS93:
I am about to try this methoud just got hold of the spindale.
Peter
Brass_Machine:
Very cool Peter! I expect pictures/videos :thumbup:
Eric
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version