The Shop > Electronics & IC Programing

DIY pcb anyone?

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John Rudd:
Dave,
It appears that the exposure/developing process is the issue.....

The FeCl3 solution doesn't etch too quickly....but the developer seems to remove too much of the resist making me think that it isn't exposed for long enough or it is past it's sell by.....

I'll try another piece of board and expose for longer......

Bluechip:
That's what I had with the crappy board. The machine or  whatever sprays the lines of resist on was going too fast or something ?? There was very little resist in places. The traces were narrowed every 1mm or so.
 
You got Skype going ??? Summat has to be better than banging a k'board ....
 
I'm on now if you want a better explanation.
 
bchip_s7
 
 
Dave

John Rudd:
Dave,
Yes I have Skype....Sorry didint read this 'til this morning...Hope you werent waiting for me... :coffee:

I have a couple/3 of options..
a)Buy some new board
b) Buy a tin a spray resist and clean all of my boards
c) ermmmm.....Something else  :scratch:

I may get back to this tonight....but need some time in the 'shed' got things to do  :dremel:

Bluechip:
So what's happened then ??
 
 
Nowt ???
Some of us are all agog.
Some have no gogs at all I expect ...
 
Dave

Chuck in E. TN:
I have finally had sucess with the laserjet toner transfer process. Just have your art printed on glossy paper on a laserjet printer. Use a domestic iron to transfer the laser toner to plain copper board. Etch with ferric cloride.
Chuck

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