Adds case design and updated sensor design for higher yield

sensors/sensor_40mm_x_100mm_x_0.1mm.scad

@@ -1,8 +1,8 @@
 // Flex Sensor - units in cm
 
 width=40;
-min_width=5;
-height=0.1;
+min_width=7.5;
+height=0.125;
 length=100;
 gap=2;
 struts=0;
@@ -13,7 +13,7 @@ endcap_run_ratio=0.5; /* How large are joined sections compared to run
 term_diameter = 1.628;
 term_side = sqrt(term_diameter*term_diameter/2);
 term_distance = 5;
-term_offset = 15;
+term_offset = 20;
 
 nozzle_width = 0.4;