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PCB drill working



I got the drill to work.  I am using washers for
bearings and I need to get some small bearings.

I used a 3055 transistor for controlling the drill
motor from the parallel port. 

Send the command "move to x,y" to the plotter, then
"draw line to x,y" to get the pen down on the copper.
I drilled out the pen and put the motor and drillbit
inside the pen case.  I then send a command to the 
parallel card and the drill spins.  I'll replace
the plotters plastic table and tell when the drill
is through by reading one of the parallel inputs 
and get a 1 back when there is continuity between
the drillbit and aluminum table.

You can see picture at rich12345.tripod.com on
the PCB program page.

Rich