by Improbable Construct » Mon Oct 21, 2013 8:42 pm
I would say for the money the DSP is totally worth it.
Without it you still have to have some sort of interface board so its not a straight add on cost.
DSP also lets you control the laser over over USB and/or Ethernet and gives you the ability to use a thumb drive to transfer your files.
The laserCAD software is a bit strange to work with but once you get the hang of it, it's fine.
Also I wold go with the cheaper 40w tube. You just about can replace it 3 times for the cost of the 45w tube and they do go bad, just sitting there, doing nothing...