Homebrew PCBs

Hi LCD,

Use a center point for the edge.  I wonder if that might be a good 
solution for mechanical etching (isolation milling).

I normally use the LL corner for the origin; and then when the stock is 
turned over, the origin is now over on the lower right corner.  Not the 
best way to to work a second origin.  One either has to work from two 
origins, or subtract the exact width of the board.

An alignment pin or pins would simplify some of that.  I'm thinking of 
making a fixture, but I don't want to make a special fixture for each 
size of board.

Alan  KM6VV

lcdpublishing wrote:
> Well, not really. Right now you cut the PCB material to size then 
> transfer & etch.  
> 
> Rather, you have your "leading" or "reference" edge cut straight and 
> you mark the center point on that edge.  You then print one side, 
> flip, print opposite side.  Now the artwork is square to that same 
> edge and aligned from face to face.
> 
> Etch the board, then trim the rest to size.
> 
> I believe that will work out okay.
> 
>