$fn = 60;
+include <sonar-table-top-holder-dimensions.scad>
use <oshw.scad>
oshw_dy = 120.366;
oshw_dx = 133.888;
-// 3/16 inch in mm deck_depth = 4.7625;
-// 1/4 inch in mm = 6.35
-// subtract a little to be a squeeze fit
-deck_depth = 4.7625 - 0.4;
-// sonar sensor measurements taken with calipers:
-// 10.82 in between, 42.33 outside, 15.82 diameter
-// measured diameter of 15.82 with calipers,
-// but when printed ends up being too small, so add some
-sonar_diameter = 15.82 + 0.4;
-sonar_radius = sonar_diameter / 2;
-sonar_height = 13.8;
-between_sonar_centers = sonar_diameter + 10.82;
-// the sonar cylinders are placed on the pcb at slightly different positions
-// from one sensor to the next, so this allows for that variance.
-between_sonar_centers_variance = 2;
-// keep at least this much plastic surrounding the sonar cylinder on all sides
-buffer = 3;
-sonar_holder_length = buffer + between_sonar_centers + sonar_diameter + buffer;
-sonar_holder_width = buffer + sonar_diameter + buffer;
-// sonar_holder_depth is deck_depth minus a little bit to make arm fit
-// into deck holder
-sonar_holder_depth = deck_depth - 0.7875;
-
-deck_holder_length = sonar_holder_depth * 2 + deck_depth + 15;
+module sonar_holder_2d() {
+ difference() {
+ square([sonar_holder_length, sonar_holder_width]); } }
module sonars(){
translate([between_sonar_centers / 2, 0, 0]){
cube([sonar_holder_length, sonar_holder_width, sonar_holder_depth]);
translate([sonar_holder_length / 2, sonar_holder_width / 2, -0.05]){
sonars();}
- translate([sonar_holder_length - rounded_corner_radius,
- sonar_holder_width - rounded_corner_radius,
+ translate([sonar_holder_length,
+ sonar_holder_width,
0]){
- corner_rounder(rounded_corner_radius, sonar_holder_depth);}}
+ corner_rounder(rounded_corner_radius,
+ sonar_holder_depth,
+ "bottom-right");}}
translate([sonar_holder_length, 0, 0]){
cube([elbow_length, deck_depth, sonar_holder_depth]);
translate([elbow_length, 0, 0]){
linear_extrude(height = 0.5)
oshw();}
-module corner_rounder_2d(radius){
+module corner_rounder_2d(radius, corner_name="top-left"){
+ rotate_for_corner = (corner_name == "top-left") ? 0 :
+ ((corner_name == "top-right") ? -90 :
+ ((corner_name == "bottom-left") ? 90 :
+ ((corner_name == "bottom-right") ? 180 :
+ 1 / 0)));
+ rotate(rotate_for_corner){
difference (){
- square (radius);
- circle (radius);}}
-
-module corner_rounder(radius, height){
- linear_extrude(height = height){
- corner_rounder_2d(radius);}}
+ square(radius);
+ translate([radius, radius]){
+ circle(radius);}}}}
-deck_holder();
+module corner_rounder(radius, height, corner_name="top-left"){
+ linear_extrude(height = height){
+ corner_rounder_2d(radius, corner_name);}}
-translate([0, sonar_holder_depth * 2 + deck_depth + 2, 0]){
- sonar_holder();}
+sonar_holder();