Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

Hi Herbert,
Bingo.... I used LM18245 (motor driver) and MSP430F123 (micro controller) for step control. I bought ballscrews and linear slides from ebay. Mechanics seem to be stable as far as for light load but I don't thing that it is possible to reach 3 mils (~ 75 micro meters) with plotter pen. May be you can say that who needs 3 mils. Mostly I am using 5-8 mils as a minimum trace width. I think easiest one is to adapt inkjet head to cnc. But neither to find cheap piezo inkjet set head nor datasheet of Epson inkjet head is possible. Because of that I have decided to modify printer. I completely agree this is the difficult path. It seems it will be very difficult to find a solution for alignment problem and up to now I could not eliminate paper detection sensors of Epson C68 most probably they are embedded to head plastic or they are using capacitive detection.



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