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PCB routing

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PK:
I used to make 4 or 5 boards a week using photographic techniques, then it was 10-20 a week, then board fab shops in china started offering boards for 50c a pop with no setup costs and  7 day turn times (including delivery)....

This is great, but two or three times a year I still need a PCB now...
Problem is that the emulsions and chemicals just don't store for any length of time, so it turns into a disappointing process..

I thought I'd give isolation routing a go in the X3 with the 60Krpm sub spindle.

It went well enough that I've ordered bits to take it to the next level.

Lessons learned:

* Generic engraving cutters aren't close to well enough balanced to run at more than 30KRPM.
* Small (0.5mm) carbide endmills work wel (used a v cutter in the attached).
* A vacuum hold down fixture is important for keeping the stock flat..

PK:
Say hello to my little friend!

awemawson:
It makes you wonder how they make them?

Joules:
Small children with great eyesight and a Dremel.

efrench:
Have you tried Voronoi style traces?

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