How use eagle (or any other) to make old style PCBs

[Teeh]

Can Eagle make a PCB like this one ?

**broken link removed**

for most passive (non complex CI) circuits using long full tracks, basic linear cutoff lines and drill spaces ?

 

[cr0sh]

I've never used Eagle, but I am pretty sure it can do a board like that...?

 

[peufeu]

It could but it's going to take a lot of time. PCB design software thinks in terms of tracks, you specify the width etc. On your picture you don't have tracks...

If you want to enlarge some copper areas to carry high current, or make a ground plane, use polygon copper pours, which will "pour" copper in an area you select, without overlapping tracks from other nets (dont forget to specify a decent clearance !).

 

[Oznog]

It's unlikely that method of making traces actually serves a purpose in the design. In fact the extra capacitance may cause problems. It can save on etchant. I don't know of an easy way to tell Eagle to do this sort of thing.

 

[canadaelk]

Place the pads where you need them, than use "solids" instead of traces (works in Protel). If your solids do not allow 45s, use heavy lines for the 45s. This takes some experimentation to get it right

 

[3v0]

The original PCB may have been created on a CNC mill.

 

[Oznog]

If engraving on a CNC mill, you could use PCB-gcode to make toolpaths out of ordinary traces. It need not cut away all the copper in the areas which aren't copper, instead it'll cut around every trace on there which is somewhat less efficient since it cuts on both sides of a gap. But, it's not a complicated technical issue of how to "do" this, and that kind of trace-cutting in the above schematic can cause problems with signal leakage.

 

[amando96]

You could make a bunch of copper pours, but it will take a while.

 

[maxrc]

Make a polygon around the circuit, then click rastnets.

Regards,
Max