Techy PCB plotter discovery....

[Grant Richter]

>Using a 0.5mm tipped Rotring pen and hi-contrast NC600FP ink on OHP 
>film gives you a usable UV master without stalling the plotter driving 
>program on the ST at 2cm per second. Speeds of 1cm per second or 
>slower stall the program, speeds of 15cm/s are possible, but the 
>output isn't dense enough for a final master, but would be OK for 
>checking...

FYI

Word of mouth has it that Roland A size plotters can be used to plot
resist ink directly to bare board. That is, my buddy works with another
engineer who has an A size plotter. He puts the bare board on the flat
bed plotter and plots a positive to the board with an indelible pen.

Acording to my friend this works.