Re: [TCML] PC boards

[bartb <bartb@xxxxxxxxxxxxxxxx>]

Hi Scott,

Something like a simple driver board is fine for etching. It's certainly 
the lowest cost solution for a 1 off board. For drivers, it's typically 
a bus voltage, output from the drivers, and the gate for the driver. One 
recommendation I would make is to simply etch out the areas between 
traces (don't etch out huge areas for a specific trace width). The areas 
between each net is simply an etched-out trace to disconnect each net. 
This really reduces the copper that needs to be removed and speeds up 
etching time.

Back when I did etch boards (I use board houses these days), I simply 
covered the copper clad with good masking tape (wide tape), pencil in 
the traces between nets, used a razor blade to cut along the lines, 
removed the tape, and soaked the board in etching solution. Worked great 
and is simple to do.

Take care,
Bart

Scott Bogard wrote:
> I am just building some simple flyback drivers, and I am sick of the 
> mess of soldering bare wires directly to dangling diodes and transistor 
> leads, and I want something more permanent than a chunk of breadboard.  
> Since it doesn't have to be perfect I don't need an incredibly steady 
> hand (plus I have a little sister with lots of nail polish experience).  
> I planned on drilling the holes and inserting the components before I 
> drew the trails to make sure everything goes where it is supposed to.  
> Thanks for your help guys.
>
> Scott Bogard.
>   

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