Originally Posted by cnc2  Thanks Superman, thanks to you i know that HPGL doesn't suite my needs & it takes me a step further in my searching.
My machine doesn't need much accuracy, +-1mm would be enough. the paper size is approx 600mm wide by n millimeters long that's why i need the cylinder to turn in only one direction imagine the time it would take to draw a 500mm square with a 400mm dia circle inside the square or a 1000mm*550mm rectangle instead of the square ...etc HPGL provides "high" accuracy & i need "speed". |
My last word for you
do not be surprised about the speed of bi-directional drum plotter
to draw a 1000mm * 500mm rectangle = perimeter is 3000mm
speeds range from 25mm-500mm per second
so to draw a 1000 * 500 rectangle = 6.0 seconds
reference is
http://easyaid.en.ecplaza.net/1.asp MODEL:HX720 720mm 630X unlimited length
note! you can use a pen instead of a vinyl cutter
Time to plot uni-directional
will be unbeleivable ( 2 dots per across pass @ 500mm apart - to give a dot pitch of 0.25mm then 1000mm= 250 passes * 500mm travel @ 500mm per second = 250 seconds = 4.17 minutes
Time will increase if you want dots closer together if you want a "line or arc"