Update README.md

README.md

@@ -18,11 +18,11 @@ Planar magnetic speakers:
 <img src='img/speaker-microscope.jpg' height=300px>
 <img src='img/hex-spiral-coil.jpg' height=300px>
 
-Plotting speakers: 
+plotting speakers: 
 
 <img src='img/speaker-plotting.mp4' width=300px>
 
-Three phase actuators:
+Three phase actuators in Y and Delta configurations:
 
 <img src='img/three-phase.jpg' height=300px>
 <img src='img/three-phase-2.jpg' height=300px>
@@ -32,6 +32,7 @@ The head is designed to press the wire down with as little friction as possible,
 <img src='img/plothead-edm-2.jpg' height=300px>
 <img src='img/plothead-edm.jpg' height=300px>
 
+Plotting is done flat, but the substrate can be folded into three dimensional configurations.
 
-
+Also, other wires can be plotted similarly (nichrome for heating, nitinol for shape change, etc.)