Have Patience Please
So recently I wanted to make a cnc plotter aka drawing machine. (I have few broken dvd drives which sparked this project) I have dvd drive stepper motors and those expensive-ish nema motors are out of question. Most of the tutorial video on google, they show the images are really jerky and have very low accuracy. Moreover, the working surface is as low as 4cm x 4cm. So, Questions.
IF I am to use a long-fine threaded screw with a nut attached (such as long threaded screws - Google Search ) and tinker with the code a bit to adjust, wouldnt it give me more space along with better precision ( finer threads)??
This ones a bit confusing, by nature, cd/dvd would require A LOT OF precision to read/write data. And the mechanism seems to do a fine job. Why is it that when this is used as a cnc device the precision is diffrent?
Am I on the right track? I mean is precision of the pen dependant on the thickness of the screw thread?