What is isolation milling
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Isolation milling can be used for producing prototypes and small PCB productions.
The advantage of isolation milling above the conventional way of using chemicals is obvious.
Less chemicals = less pollution. It also prevents chemical hazards . This is especially true
for students who are in majority not to concerned in handling chemicals the proper way.
Another big advantage is the speed in which you can make a prototype, you do not have
to wait for some PCB manufacturer to get your prototypes ready and then find out there are
still design errors.
Isolation milling is making grooves around traces to isolate them.
After all copper is removed around the different nets (connected copper objects),
the electrical connectivity will be the same as when the PCB was etched.