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I'm thinking you would throw in a cheap microcontroller and basically use it as a modem to control the printer. If the carrier signal is lost, then it stops pr
by jlgreco 13y ago
I'm thinking you would throw in a cheap microcontroller and basically use it as a modem to control the printer. If the carrier signal is lost, then it stops printing. This would retain most of the benefits of using the audio jack, including being able to re-compute prints and play them back with something like an mp3 player instead of a proper computer.
- oakwhiz 13y agoThis does make it a bit more complex though, because the microcontroller, though simple, still needs a board and some kind of power supply, and a reasonably accurate DAC for controlling the galvanometers. The microcontroller would have to spend the time in between DAC timer interrupts to perform the "modem" function. Not too bad since for this project the DAC only needs a frequency of 8kHz or less, but still mildly challenging. You could just use an RS-232 or USB interface instead of trying to create a modem since that would be easier and perhaps more reliable.
- ajuc 13y agoI wonder what mp3 compression would do to your objects :)