Separated magnet plate and pillar into two parts.

magnet holder.scad

@@ -21,61 +21,77 @@ rodRad=3;
 linearBearingOD=12;
 linearBearingHeight=19;
 
+
 union(){
     translate([-80,0,0]){
+        translate([-10,0,0])//
         color("blue") magnetPlate();
         color("red") pillar(30);
-        
+
+        translate([0,0,-20])//
         translate([40,0,-15])
             motorSide();
         
+        translate([0,0,30])//
         color("orange")
         translate([40,0,2])
-        rotate([0,180,360/10*.5])
+        rotate([0,180,360/10*-.15])
             pinion(10);
         
         color("green")
-        translate([40,0,0])
+        translate([40,0,20])
         for (y = [-1,1]){
             translate([0, y*(magnetLength+5+2*(rodRad+3))/2, 0])
             bearingClamp();
         }
     }
-    color("Purple") endPlate(30);
+    translate([10,0,0])//
+        color("Purple") endPlate(30);
 }
 
+//color("red") magnetPlate(30);
+
 // Magnet plate
-module magnetPlate(){
-    thickness = 10;
+module magnetPlate(spacing = 30){
+    thickness = 12;
+    thicknessMin = 7;
+    length = magnetLength+5;
+    
     $fn=50;
     union(){
         difference(){// rod holders
             for (y = [-1,1]){ 
-                translate([-thickness/2, y*(magnetLength+5+2*(rodRad+3))/2, 0])
+                translate([-thickness/2, y*(length+2*(rodRad+3))/2, 0])
                 rotate([0,-90,0])
                     cube(size = [2*(rodRad+3),2*(rodRad+3), thickness], center = true);
             };
             
             for (y = [-1,1]){ // rod insert---halfway through holder + 1mm so face doesn't line up
-                translate([1, y*(magnetLength+5+2*(rodRad+3))/2, 0])
+                translate([1, y*(length+2*(rodRad+3))/2, 0])
                 rotate([0,-90,0])
                     cylinder(h=thickness/2+1, r=rodRad);
             };
         }
 
         difference(){  //magnet trough
-            translate([0, -(magnetLength+5)/2, -(magnetWidth+5)/2])
+            translate([0, -length/2, -(magnetWidth+5)/2])
             rotate([0,-90,0]) 
                 cube([magnetWidth+5, magnetLength+5, thickness]);
             
-            translate([-5, -(magnetLength)/2, -(magnetWidth)/2]) // 5mm under magnet
+            translate([-thicknessMin, -magnetLength/2, -(magnetWidth)/2])
             rotate([0,-90,0])
                 cube([magnetWidth, magnetLength, magnetHeight]);
+            
+            for (y = [-spacing/2, spacing/2]){
+                translate([-thicknessMin+3, y, 0]) // cap recessed by 3mm
+                rotate([0,+90,0])
+                    boltHole(size=3, length=thicknessMin, extraCapHeight=10);
             }
+        }
     }
 }
 module pillar(spacing = 30){
-    thickness = 8;
+    thickness = 10;
     width = 50;
     length = 80;
     cavitySideThickness = 10;
@@ -85,25 +101,31 @@ module pillar(spacing = 30){
     innerRadius=0;//shaft radius, in mm
     borders=5;//how thick should the borders around the central "shaft" be, in mm
     
-    translate([0, -width/2, -thickness/2+1])
-    difference(){
-        cube([length,width,thickness]);
-        for (y = [width/2-spacing/2, width/2+spacing/2]){ // M3 nut/bolt holes
-            translate([length-5, y, -1])
-            rotate([0,0,-90])
-            linear_extrude(height=thickness/2+3.2+1)
-                nutHole(size=3, proj=2);
-            
-            $fn=50;
-            translate([length-5, y, thickness/2])
-            rotate([0,90,0])
-                linear_extrude(height=6) boltHole(size=3, proj=1);
-        }
-        translate([cavityEndThickness, cavitySideThickness, -1])
-            cube([length-cavityEndThickness*2, width-cavitySideThickness*2, thickness+2]);
+    translate([0, -width/2, -thickness/2])
+        difference(){
+            cube([length,width,thickness]);
+            for (r_z = [0,180]){
+                translate([length/2, width/2, 0])
+                rotate([0,0,r_z])
+                translate([-length/2, -width/2, 0]) // center piece before rotation
+                    for (y = [width/2-spacing/2, width/2+spacing/2]){ // M3 nut/bolt holes
+                        translate([length-5, y, -1])
+                        rotate([0,0,-90])
+                        linear_extrude(height=thickness/2+3.2+1)
+                            nutHole(size=3, proj=2);
+                        
+                        $fn=50;
+                        translate([length-5, y, thickness/2])
+                        rotate([0,90,0])
+                            linear_extrude(height=6) boltHole(size=3, proj=1);
+                    }
+            }
+        
+            translate([cavityEndThickness, cavitySideThickness, -1])
+                cube([length-cavityEndThickness*2, width-cavitySideThickness*2, thickness+2]);
     }
     
-    translate([length/2, -width/2+7.2, -thickness/2+1])
+    translate([length/2+2, -width/2+7.3, -borders+2])
     rotate([0,0,180])
         rack(innerRadius, borders, 180/circular_pitch*20, 10, pressureAngle*pi/180, centerAngle);