diff --git a/intval_alt.scad b/intval_alt.scad
new file mode 100644
index 0000000..2906f6e
--- /dev/null
+++ b/intval_alt.scad
@@ -0,0 +1,374 @@
+BODY_X = 135;
+BODY_Y = 140;
+BODY_Z = 68;
+BOLEX_X = BODY_X;
+BOLEX_Y = BODY_Y;
+BOLEX_Z = BODY_Z;
+
+STEPPER_W = 42.5;
+STEPPER_VOID_D = 22.5;
+STEPPER_H = 8;
+STEPPER_THICKNESS = 5;
+STEPPER_BOLTS = 21.6;
+STEPPER_CORNER = 60.1;
+STEPPER_BOTTOM = 6;
+
+PANEL_Z = 3;
+PANEL_X = BOLEX_X;
+PANEL_Y = 96;
+
+PANEL_OFFSET_Z = 42;
+PANEL_OFFSET_X = 0;
+PANEL_OFFSET_Y = 20;
+
+FRONT_SPACING_Z = 64;
+
+SHAFT_POSITION_X = (BOLEX_X / 2) - 25.5;
+SHAFT_POSITION_Y = (BOLEX_Y / 2) - 47.6;
+
+module rounded_cube (cube_arr = [1, 1, 1], d = 0, center = false) {
+	off_x = 0;
+	off_y = 0;
+	r = d/2;
+	union () {
+		cube([cube_arr[0] - d, cube_arr[1], cube_arr[2]], center = center);
+		cube([cube_arr[0], cube_arr[1] - d, cube_arr[2]], center = center);
+		translate ([1 * (cube_arr[0] / 2) - r , 1 * (cube_arr[1] / 2)- r, 0]) cylinder(r = r, h = cube_arr[2], center = center);
+		translate ([-1 * (cube_arr[0] / 2) + r, -1 * (cube_arr[1] / 2) + r, 0]) cylinder(r = r, h = cube_arr[2], center = center);
+		translate ([1 * (cube_arr[0] / 2) - r, -1 * (cube_arr[1] / 2) + r, 0]) cylinder(r = r, h = cube_arr[2], center = center);
+		translate ([-1 * (cube_arr[0] / 2) + r, 1 * (cube_arr[1] / 2)- r, 0]) cylinder(r = r, h = cube_arr[2], center = center);
+	}
+}
+
+module panel () {
+    difference () {
+        rounded_cube([PANEL_X, PANEL_Y, PANEL_Z], d = 8, center = true);
+    	//stepper void
+        translate([0 , -PANEL_OFFSET_Y, 0]) {
+            translate([SHAFT_POSITION_X, SHAFT_POSITION_Y, 0]) stepper_void();
+        }
+        //arduino void
+        translate([0 , -PANEL_OFFSET_Y, 0]) translate([-20, 15, 20]) arduino();
+       //window for frame counter
+        translate([(PANEL_X / 2) - 32, (PANEL_Y / 2) - 8, 0]) cube([16, 16, 4], center = true);
+        //front  supports
+       translate([56.8, (FRONT_SPACING_Z / 2) + 2.1, 0]) cylinder(r = 5 / 2, h = 16, center = true);
+       translate([56.8, (FRONT_SPACING_Z / 2) + 2 - FRONT_SPACING_Z, 0]) cylinder(r = 5 / 2, h = 16, center = true);
+    
+  }
+    
+}
+
+
+//mothballed, mount stepper directly to board
+/*module stepper_mount () {
+  	$fn = 60;
+	difference () {
+    	rounded_cube([STEPPER_W + (STEPPER_THICKNESS * 2), STEPPER_W + (STEPPER_THICKNESS * 2), STEPPER_H + STEPPER_BOTTOM], d = 8, center = true);
+		translate([0, 0, STEPPER_BOTTOM / 2 + 0.1]) {
+      		difference() {
+      			cube([STEPPER_W, STEPPER_W, STEPPER_H], center = true);
+                for (i = [0:4]) {
+    				rotate([0, 0, 45 + (i * (360 / 4))]) {
+            			translate([STEPPER_CORNER / 2, 0, 0]) cube([3, 3, STEPPER_H * 2], center = true);
+            		}
+    			}
+        	}
+      	}
+        for (i = [0:4]) {
+    		rotate([0, 0, 45 + (i * (360 / 4))]) {
+        		translate([STEPPER_BOLTS, 0, 0]) {
+          			cylinder(r = 1.5, h = 20, center = true);
+          			translate([0, 0, -6]) cylinder(r = 5.6 / 2, h = 3, center = true);
+          		}
+        	}
+    	}
+        //disk void
+        translate([0, 0, -1.9]) cylinder(r = STEPPER_VOID_D/ 2, h = 2, center  = true, fn = 200);
+  	    cylinder(r = 5.5 / 2, h = 20, center = true);
+  }
+    
+}*/
+
+module stepper_void (H = 10) {
+    //$fn = 50;
+        for (i = [0:4]) {
+    		rotate([0, 0, 45 + (i * (360 / 4))]) {
+        		translate([STEPPER_BOLTS, 0, 0]) {
+          			cylinder(r = 1.5, h = 20, center = true);
+          			//translate([0, 0, -6]) cylinder(r = 5.6 / 2, h = H, center = true);
+          		}
+        	}
+    	}
+        //disk void
+        translate([0, 0, -1.9]) cylinder(r = STEPPER_VOID_D/ 2, h = H, center  = true, fn = 200);
+  	    cylinder(r = 5.5 / 2, h = 20, center = true, $fn = 100);
+}
+
+module mount_base () {
+	rounded_cube([STEPPER_W + (STEPPER_THICKNESS * 2), STEPPER_W + (STEPPER_THICKNESS * 2), 6], d = 8, center = true);
+    //stepper mount
+}
+
+module one_to_eight_shaft () {
+	//$fn = 60;
+	H = 4;
+	BAR = 4.98 - 3.66;
+	BAR_W = 1.34;
+  	difference () {
+		cylinder(r = 9.11 / 2, h = H, center = true);
+		cylinder(r = 7.16 / 2, h = H + 1, center = true);
+    }
+	cylinder(r = 3 / 2, h = H, center = true);
+	rotate([0, 90, 0]) cylinder(r = BAR_W / 2, h = H, center = true);
+}
+
+module key () {
+    //$fn = 60;
+    BODY = 16;
+	OD = 7.16 - .15;
+	ID = 3.85 + .15;
+    H = 5;
+  	BAR = 4.98 - 3.66;
+	BAR_W = 1.34;
+    BEARING_ID = 8;
+	PAD = BODY;
+    SHAFT_D = 5;
+    SHAFT_H = 18;
+    
+  	difference () {
+		cylinder(r = OD / 2, h = H, center = true);
+		cylinder(r = ID / 2, h = H, center = true);
+		translate([OD / 2, 0, -(5 / 2) + ((BAR + .15) / 2)]) cube([OD + 1, BAR_W + .15, BAR + .15], center = true);
+    }
+
+    translate([0, 0, 4]) cylinder(r2 = PAD / 2, r1 = BEARING_ID / 2, h = 4, center = true);
+    
+  	translate([0, 0, 14 - 0.02]) {
+    	difference() {
+    		cylinder(r = BODY / 2, h = BODY, center = true);
+            
+      		translate([0, 0, 1.5]) difference(){
+                cylinder(r = SHAFT_D / 2 , h = SHAFT_H, center = true);
+        		translate([0, (SHAFT_D / 2) + (4.6 / 2), 0]) cube([SHAFT_D, SHAFT_D, SHAFT_H + 1], center = true);
+      		}
+        	translate([0, 5, 2])  {
+                rotate([90, 0, 0]) {
+                    cylinder(r = 2.6 /2, h = 10, center = true);
+                    translate([0, 0, -2.5]) cylinder(r = 5.75 / 2, h = 4, center =true);
+                }
+			}
+    	}
+  }
+  
+}
+
+module bolex () {
+	cube([BODY_X, BODY_Y, BODY_Z], center = true);
+    //1:8 shaft
+    color("red") translate([SHAFT_POSITION_X, SHAFT_POSITION_Y, (BOLEX_Z / 2) + 2]) one_to_eight_shaft();
+    //translate([0, 0, 50]) key();
+}
+
+module arduino () {
+	X = 53.5;
+    Y = 68.75;
+    Z = 22.5;
+    cube([X, Y, Z], center = true);
+    translate ([-27, -39, 0]) {
+		 translate([  2.54, 15.24 , 0]) cylinder(r = 3.5 / 2, h = 100, center = true);
+		 translate([  17.78, 66.04 , 0]) cylinder(r = 3.5 / 2, h = 100, center = true);
+		 translate([  45.72, 66.04 ,0]) cylinder(r = 3.5 / 2, h = 100, center = true);
+		 translate([  50.8, 13.97  ,0]) cylinder(r = 3.5 / 2, h = 100, center = true);
+
+  	     //cylinder(r = 3.5 / 2, h = 100, center = true);
+    }
+}
+
+module stepper () {
+	    SHAFT_D = 5;
+    SHAFT_H = 22.5;
+  H = 32.76;
+
+  cube([STEPPER_W, STEPPER_W, H], center = true);
+  for (i = [0:4]) {
+          rotate([0, 0, 45 + (i * (360 / 4))]) {
+              translate([STEPPER_BOLTS, 0, 0]) {
+                  cylinder(r = 1.5, h = 20, center = true);
+                  translate([0, 0, -6]) cylinder(r = 5.6 / 2, h = H, center = true);
+              }
+          }
+      }
+      //disk void
+      translate([0, 0, -1.9]) cylinder(r = STEPPER_VOID_D/ 2, h = H, center  = true, fn = 200);
+      cylinder(r = 5.5 / 2, h = 20, center = true, $fn = 100);
+     translate([0,0,-(H / 2) - (SHAFT_H / 2) - 1.9]) difference(){
+                cylinder(r = SHAFT_D / 2 , h = SHAFT_H, center = true);
+        		translate([0, (SHAFT_D / 2) + (4.6 / 2), 0]) cube([SHAFT_D, SHAFT_D, SHAFT_H + 1], center = true);
+      		}
+}
+
+module cross_bar () {
+    W = 170;
+	cube([7, W, 40], center = true);
+}
+
+module back_support () {
+  A = 27;
+  B = 33;
+  difference() {
+  	translate([2, 0, 0]) rotate([90, 0, 0]) {
+      //rounded_cube([32 , 57, 18], d = 6, center = true);
+      union () {
+        translate([0, -(57 / 2) + (A / 2), 0]) rounded_cube([32, A, 18], d = 6, center = true);
+        translate([(32 / 2) - 8, (57 / 2) - (B / 2) , 0]) rounded_cube([18, B, 18], d = 6, center = true);
+      }
+    }
+  	//void for panel
+    translate([15, 0, 23.5]) cube([20, 40, 3.1], center = true);
+    translate([13, 0, -37]) cube([32 , 18 + 1, 57], center = true);
+    translate([25, 0, -10]) cube([32 , 18 + 1, 57], center = true);
+    translate([.3, 0, -18.5]) rotate([0, 90, 0]) {
+      cylinder(r = 12.2 / 2, h = 20, center = true);
+      cylinder(r = 5 / 2, h = 50, center = true);
+      translate([0, 0, -11]) cylinder(r = 8.9 / 2, h = 3.5, center = true, $fn = 6);
+    }
+    //top bolt
+    translate([13.5, 0, 29]) cylinder(r = 5 / 2, h = 25, center = true);
+  } 
+  
+}
+
+module back_clamp () {
+    difference () {
+        intersection () {
+            cube([20, 75, 8], center = true);
+            union () {
+                cube([20, 65, 10], center = true);
+                translate([0, 65 / 2, 3.5]) rotate([0, 90, 0]) cylinder(r = 7.5, h =20, center = true, $fn = 60);
+                translate([0, -65 / 2, 3.5]) rotate([0, 90, 0]) cylinder(r = 7.5, h =20, center = true, $fn = 60);
+            }
+        }
+    }
+  	translate([0, 50 / 2, 6]) {
+    	difference() {
+    		cylinder(r = 12 / 2, h = 10, center = true);
+      		cylinder(r = 5 / 2, h = 10 + 1, center = true);
+      }
+    }
+
+    translate([0, -50 / 2, 6]) {
+    	difference () {
+    		cylinder(r = 12 / 2, h = 10, center = true);
+      		cylinder(r = 5 / 2, h = 10 + 1, center = true);
+      	}
+    }
+
+}
+
+module front_support() {
+  difference () {
+   	translate([-2.50, 0, 0]) rotate([90, 0, 0]) union() {
+      //rounded_cube([45, 70, 18], d = 6, center = true);
+      translate([0, -(70 / 2) + (42 / 2), 0])rounded_cube([45, 42, 18], d = 6, center = true);
+      translate([0, (70 / 2) - (35 / 2), 0])rounded_cube([45, 35, 18], d = 6, center = true);
+    }
+    translate([-12.5, 0, -11]) rotate([90, 0, 0]) {
+        difference() {
+           cube([40, 70, 25], center = true);
+           translate([0, 43, 0]) cube([40, 70, 25], center = true);
+        }
+    }
+    //void for panel
+    translate([-15, 0, 29]) cube([20, 40, 3.1], center = true);
+    //top bolt
+    translate([-16, 0, 29]) cylinder(r = 5 / 2, h = 25, center = true);
+    //bolt shaft and hex
+    translate([10, 0, -25]) rotate([0, 90, 0]) {
+    	cylinder(r = 5 / 2, h = 26, center = true);
+         translate([0, 0, 0]) cylinder(r = 12.2 / 2, h = 10, center =true);
+        translate([0, 0, 6.5])  cylinder(r = 8.9 / 2, h = 3.5, center = true, $fn = 6);
+    }
+    //void for shelf
+    translate([17, 0, 25]) rotate([90, 0, 0]) rounded_cube([30, 35, 19], d = 6,  center = true);
+  	translate([-25, 0, 5]) rotate([90, 0, 0]) rounded_cube([30, 35, 19], d = 6,  center = true);
+  }
+  
+  
+
+   //translate([-12, 0, 29]) cylinder(r = 5 / 2, h = 25, center = true);
+  translate([10, 0, -20]) rotate([0, 90, 0]) {
+       //cylinder(r = 5 / 2, h = 26, center = true);
+       //translate([0, 0, 0]) cylinder(r = 12 / 2, h = 10, center =true);
+       //translate([0, 0, 5])  cylinder(r = 8.9 / 2, h = 3.5, center = true, $fn = 6);
+    }
+}
+
+module front_clamp () {
+    //$fn = 60;
+	D = 24 + (2.16-1.53);
+	H = 3;
+	D2 = 30;
+    H2 = 6;
+  	difference () {
+    	union () {
+			cylinder(r = D / 2, h = H, center = true);
+			translate([0, 0, -(H / 2) - (H2 / 2)]) cylinder(r = D2 / 2, h = H2, center = true);
+    	}
+    	translate([0, 0, -1.5 - 6]) cylinder(r = 5 / 2, h = 6, center = true);
+
+    }
+  	translate([0, 0, -10]) {
+    	difference () {
+			cylinder(r = 12 / 2, h = 10, center =true);
+
+            translate([0, 0, 0]) cylinder(r = 5 / 2, h = 16, center = true);
+      	}
+    }
+}
+
+module center_stand () {
+	cylinder(r = 10 / 2, h = 31, center = true);
+	translate([0, 0, (31 / 2) + 2]) cylinder(r = 8 / 2, h = 4, center = true);
+    translate([0, 0, (31 / 2) - 2]) cylinder(r = 16 / 2, h = 4, center = true);
+    translate([0, 0, -(31 / 2) + 2]) cylinder(r = 16 / 2, h = 4, center = true);
+}
+
+translate([17, -6, 25]) center_stand();
+
+translate([0, 0, -24]) bolex();
+translate([(170 / 2) - (147.3 - 135), (BOLEX_Y / 2) - 47.8, -12]) {
+	//translate([0, FRONT_SPACING_Z / 2, 0]) rotate([0, -90, 0]) front_clamp();
+	translate([0, -FRONT_SPACING_Z / 2, 0]) rotate([0, -90, 0]) front_clamp();
+}
+  //translate([0, 0, 10]) rotate([0, 90, 0]) cross_bar();
+
+/*translate([SHAFT_POSITION_X, SHAFT_POSITION_Y, 12]) difference() {
+    key();
+    translate([50, 0, 0]) cube([100, 100, 100], center = true);
+}*/
+translate([PANEL_OFFSET_X, PANEL_OFFSET_Y, PANEL_OFFSET_Z]) panel();
+//translate([SHAFT_POSITION_X, SHAFT_POSITION_Y, 60]) stepper();
+//mount_base();
+//translate([-20, 15, 55]) arduino();
+translate([-5, 20, 63]) color([0, 0, 1], 0.2) difference () {
+  cube([96, 96, 40], center = true);
+  translate([0, 0, -3]) cube([96 - 6, 96 - 6, 40 - 3], center = true);
+}
+translate([(170 / 2) - (147.3 - 135), -10, 13]) {
+  //difference () {
+  	front_support();
+    //translate([0, 50, 0]) cube([100, 100, 200], center = true);
+  //}
+}
+translate([(170 / 2) - (147.3 - 135), -10 + FRONT_SPACING_Z , 13]) front_support();
+//translate([0, 20, 50],) cylinder(r = 5, h = 28, center = true);
+
+translate([-(170 / 2) + (147.3 - 135) + 1.5, 20, 0]) rotate([0, -90, 0]) back_clamp();
+translate([-(170 / 2) + (147.3 - 135), (BODY_Y / 2) - 25 , 18.5]) back_support();
+translate([-(170 / 2) + (147.3 - 135), (BODY_Y / 2) - 25 - 50 , 18.5]){
+  difference () {
+  	back_support();
+    translate([0, 50, 0]) cube([100, 100, 200], center = true);
+  }
+}
\ No newline at end of file
diff --git a/modules.scad b/modules.scad
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/modules.scad
@@ -0,0 +1 @@
+