Re: Basic questions

the t-tech cutters are expensive, but last the longest for me.

http://www.vhf.eu/en/Tools/SpecialTools/IsolationEngravingTool

a Vee tip. you can set the depth so that it removes the copper and cuts into the fiberglass.

cutting the fiberglass is a different cutter, 1/8" dia. or the same dia as the shank. this gives more strength.


one has to control every part of the process to get tiny traces. it is possible to run two traces between pads on an IC chip, one is difficult, I prefer to avoid running traces between pads in favor of large pads.

the tip wears out, the part that cuts the top of the board is only cutting copper so it lasts longer. you lose the edge if your board is not flat and the cutter goes deep into the fiberglass. when that happens, it dulls and then the copper has a ridge to it.

Dave

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "polaraligned" <polaraligned@...> wrote:
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> <dave_mucha@> wrote:
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> > in doing circuit boards...
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> > Dave
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> Curious what kind of cutter you use that leaves a clean edge on the traces? I assume that it is very small so the traces can be close.
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> Scott
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