Homebrew PCBs

Nice work DJ,

I can appreciate winding a toroidial transformer such as that on your
photos. I guess you mounted it on a PCB assembly to make rework easier?

Best regards,

Bill Laakkonen

On Mon, Apr 2, 2012 at 8:55 PM, DJ Delorie <dj@...> wrote:

> **
>
>
>
> Been working on this project for a long time, finally got some results...
>
> DIY CNC 409 0.0145" holes in 12 minutes
> www.youtube.com/watch?v=SR1y6Eq19EU
>
> The CNC machine uses three brushless DC motors instead of steppers, I
> had to make my own controller boards, write the firmware, build the
> table... many steps.
>
> controller page: www.delorie.com/electronics/bldc/
> photos: www.delorie.com/photos/cnc/ (including close-ups of the drilled
> board)
>
> I have an excellon-to-gcode script for drills if anyone's interested,
> although there's some new features I still want to try, and I want to
> see how fast I can get the drilling cycle to go without breaking any
> bits :-)
>  
>


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