add bearing raise

hose_pump_parametric.scad

@@ -4,10 +4,10 @@
 // green holes need thread cutting M3 (hole depth 11mm)
 
 $fn=100;
-show_case = true;
+show_case = false;
 show_disc = true;
-show_lid = true;
-show_motor_flange = true;
+show_lid = false;
+show_motor_flange = false;
 
 // ##### PARAMETERS TO ADAPT #####
 
@@ -24,6 +24,9 @@ l_squeeze = 0.4;  // distance the hose is squeezed
 d_bb_out = 14; // outer diameter of ball bearing
 d_bb_in = 5;  // inner diameter of ball bearing
 h_bb = 5;     // thickness of ball bearing
+// BEARING RAISE
+h_br = 0.5;
+d_br = 11;
 
 number_of_rollers = 3; // number of rollers used
 wall_thickness = 6; // thickness of outer case wall
@@ -69,7 +72,15 @@ r_motor_flange_screws = d_motor_flange/2-4.5; //
 if(show_disc==true)
 difference()
 {
-    cylinder(d=d_disc,h=h_disc);
+    union(){
+        cylinder(d=d_disc,h=h_disc-h_br);
+        for(i=[0:1:number_of_rollers-1])
+        {
+            rotate(roller_angle*i,[0,0,1])
+            translate([r_roller_shaft_position,0,0])
+            cylinder(d=d_br,h=h_disc);
+        }
+    }
     // motor shaft hole
     difference()
     {