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I feel like someone should mention PCB milling as a prototyping method. Quicker and less messy than a chemical process, and the same machine that does the milling can also drill holes and rout the the board edges.

Two-sided boards are accomplished by drilling a few registration holes in the board that drop on to pins on the milling machine. Mill one side, flip, mill other side.

Still probably not very common in professional environments since prototype runs are so cheap, but for times when faster turnaround than a prototype run can provide is needed, milling is pretty great.

I feel like someone should mention PCB milling as a prototyping method. Quicker and less messy than a chemical process, and the same machine that does the milling can also drill holes and rout the the board edges.

Two-sided boards are accomplished by drilling a few registration holes in the board that drop on to pins on the milling machine. Mill one side, flip, mill other side.

Still probably very common in professional environments since prototype runs are so cheap, but for times when faster turnaround than a prototype run can provide is needed, milling is pretty great.

I feel like someone should mention PCB milling as a prototyping method. Quicker and less messy than a chemical process, and the same machine that does the milling can also drill holes and rout the the board edges.

Two-sided boards are accomplished by drilling a few registration holes in the board that drop on to pins on the milling machine. Mill one side, flip, mill other side.

Still probably not very common in professional environments since prototype runs are so cheap, but for times when faster turnaround than a prototype run can provide is needed, milling is pretty great.

1
source | link

I feel like someone should mention PCB milling as a prototyping method. Quicker and less messy than a chemical process, and the same machine that does the milling can also drill holes and rout the the board edges.

Two-sided boards are accomplished by drilling a few registration holes in the board that drop on to pins on the milling machine. Mill one side, flip, mill other side.

Still probably very common in professional environments since prototype runs are so cheap, but for times when faster turnaround than a prototype run can provide is needed, milling is pretty great.