I noticed the mention of the morphing feature on the G203V model but did not see it on the G540 or for that matter the low cost G250X or G251X model. I am anyway wondering if the G540 consists of 4 each G250 modules on a master board? The G540 would not help me much anyway since I have the Planet-CNC USB controller that has better in-out functionality.

Oh well, I will probably give Gecko a call today. I was anyway planning to add a rotary axis sometimes in the future and that would give me an excuse to buy some hardware already.

Quote Originally Posted by CarveOne View Post
There are two major features of the Gecko drives that others don't have (as far as I know. Some of the newer drives may have caught up by now if patents haven't prevented it). A very effective resonance reduction circuit, and automatic morphing of the step pulses per revolution. The very popular G540 and G203V drives both have this......

CarveOne