fit sonar sensor holder for 1/4 inch deck

diff --git a/3d-printables/sonar-table-top-holder.scad b/3d-printables/sonar-table-top-holder.scad
index 9cb881de5609da37309af24bcb85dd60511fba9d..55ba1c9ed8beb70aedfd6a26a4ee9381ce333747 100644 (file)
--- a/3d-printables/sonar-table-top-holder.scad
+++ b/3d-printables/sonar-table-top-holder.scad
@@ -7,7 +7,8 @@
 $fn = 60;
 
 // 3/16 inch in mm deck_depth = 4.7625;
-// 1/4 inch in mm - a little to be a squeeze fit
+// 1/4 inch in mm = 6.35
+// subtract a little to be a squeeze fit
 deck_depth = 6.35 - 0.4;
 sonar_plate_width = 20;
 // sonar sensor measurements taken with calipers:
@@ -23,7 +24,6 @@ sonar_holder_width = sonar_plate_width + 3;
 sonar_holder_depth = 4;
 
 deck_holder_length = 30;
-deck_holder_width = sonar_holder_width;
 
 module sensors(){
   translate([between_sensor_centers / 2, 0, 0]){
@@ -37,40 +37,24 @@ module sensor_holder(){
     translate([sonar_holder_length / 2, sonar_holder_width / 2, -0.05]){
       sensors();}}
   translate([sonar_holder_length, 0, 0]){
-    cube([sonar_holder_depth + 0.3, deck_depth - 0.3, deck_depth - 0.3]);
-    translate([sonar_holder_depth + 0.3, 0, 0]){
+    cube([sonar_holder_depth + 0.7, deck_depth, deck_depth - 0.7]);
+    translate([sonar_holder_depth + 0.7, 0, 0]){
       // subtract a little bit (0.3) to make it fit
-      cube([deck_depth - 0.3, sonar_holder_width, deck_depth - 0.3]);}}}
+      cube([deck_depth - 0.7, sonar_holder_width, deck_depth - 0.7]);}}}
 
 module deck_holder(){
-  cube([deck_holder_length, sonar_holder_depth, sonar_holder_width]);
+  deck_holder_width = sonar_holder_width - deck_depth;
+  cube([deck_holder_length, sonar_holder_depth, deck_holder_width]);
   cube([sonar_holder_depth,
         sonar_holder_depth * 2 + deck_depth,
-        sonar_holder_width]);
+        deck_holder_width]);
   translate([0, sonar_holder_depth + deck_depth, 0]){
-    cube([deck_holder_length, sonar_holder_depth, sonar_holder_width]);}
+    cube([deck_holder_length, sonar_holder_depth, deck_holder_width]);}
   translate([sonar_holder_depth + deck_depth, 0, 0]){
     cube([sonar_holder_depth,
           sonar_holder_depth * 2 + deck_depth,
-          sonar_holder_width]);}}
+          deck_holder_width]);}}
 
-module sonar_table_top_holder(){
-  difference(){
-    union(){
-      cube([sonar_holder_length, sonar_holder_width, sonar_holder_depth]);
-      translate([sonar_holder_length, 0, 0]){
-        deck_holder();}}
-    translate([between_sensor_centers / 2 + sonar_sensor_radius + 3,
-               sonar_holder_width / 2,
-               -1]){
-      sensors();}
-    // cut out a bit of the circle to make it 3d printable,
-    //  no severe overhang
-    translate([3 + sonar_sensor_radius,
-               sonar_holder_width - 3.025,
-               sonar_holder_depth / 2 - 0.025]){
-      cube([10, 6.1, sonar_holder_depth + .1], center = true);
-      translate([between_sensor_centers, 0, 0]){
-        cube([10, 6.1, sonar_holder_depth + .1], center = true);}}}}
-
-sensor_holder();
+translate([0, sonar_holder_depth * 2 + deck_depth + 2, 0]){
+  sensor_holder();}
+deck_holder();