Varible Z axis milling on PCB's How do you present the gerbers?

[mrpackethead]

How do you present the gerbers for variable depth z axis milling?

[mrpackethead]

not back drilling.  Milling out peices at varible depths.

[mrpackethead]

wonder if you supplied gerbers for each depth.

[IconicPCB]

If profile in theXY plane is same , simply copmplete the pass art a fixed Z value and then repeat at a new Z value .

The new value will be determined by the cutter You are using and the chip load it can tolerate.
Dont forget the weave and weft of FR4 will present significant load as the tool cuts into it.

[mrpackethead]

If profile in theXY plane is same , simply copmplete the pass art a fixed Z value and then repeat at a new Z value .

The new value will be determined by the cutter You are using and the chip load it can tolerate.
Dont forget the weave and weft of FR4 will present significant load as the tool cuts into it.

that becomes the manufacturers problem!

[T3sl4co1l]

You're outside the domain of Gerbers. Create a mechanical drawing and instruct fab to use it as a final milling step.  They will translate it into g-code or whatever, and handle the tools and paths themselves (hopefully?).

Tim