20110507

Good Circuit Boards Require Good Clamping


Good Circuit Boards Require Good Clamping
Originally uploaded by mikeysklar

I produced a great looking board yesterday on my little CNC mill. The solution was to add $4 worth of fender washers so that I could remove any vibration from the mill table. I'm using the same bits and configuration files between the these two circuit boards. The only thing that changed was the fender washers.

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3 comments:

Ragnar said...

That is a big improvement, you must have felt quite relieved when you saw the first clean strips. The solderpad size seems to be a compromise between spacing of the strips and the drills diameter, I'd prefer them to be bigger, but would use them as they are now right away. Envy!

Mikey Sklar said...

Ragnar,

Yes, the pads need to be larger for easy soldering. I had ordered some very fine carbide bits from ebay, but they screwed up my order and sent larger bits. When the right bits do arrive I should be able to reduce the drill area around the tracks and pads from 24 mil to 10 mil.

Travis said...

I've seen and used carpet tape which is a very sticky double sided tape. It works very well but can be hard to pull the tape off. The best way is to stick the tape to your jeans or shirt to pick up some lint so that it's not as sticky.