foam_w = 3;
horn_w = 1;
-horn_vert_h = 3 + foam_w;
-horn_h = 8 + foam_w;
+horn_vert_h = 1 + foam_w;
+horn_h = 10 + foam_w;
slot_off = 3.5; // from the hinge line
slot_l = 10;
-hole_d = 2;
+hole_d = 1.7;
hole_d2 = 5;
// base
-baseplate_l = 20;
+baseplate_l = 15;
baseplate_w = 35;
baseplate_h = 0.6;