Add screw_holes.scad

screw_holes.scad

@@ -0,0 +1,32 @@
+// Module for creating screw holes based on an array of [x,y,z] locations
+
+
+
+module screw_holes(loc,dia,h,fn=32){
+    for(l=loc){
+        translate(l){
+            cylinder(d=dia,h=h,$fn=fn);
+        }
+    }
+}
+
+module corner_latches(dim_b,loc_s,dia_s,space_s,height_s){
+    //calculate corner points
+    loc_c   = [[[0,0],[loc_s[0][0],0],[loc_s[0][0],loc_s[0][1]],[0,loc_s[0][1]]],
+               [[loc_s[1][0],0],[dim_b[0],0],[dim_b[0],loc_s[1][1]],[loc_s[1][0],loc_s[1][1]]],
+               [[loc_s[2][0],loc_s[2][1]],[dim_b[0],loc_s[2][1]],[dim_b[0],dim_b[1]],[loc_s[2][0],dim_b[1]]],
+               [[0,loc_s[3][1]],[loc_s[3][0],loc_s[3][1]],[loc_s[3][0],dim_b[1]],[0,dim_b[1]]]]; // corners
+    
+    difference(){
+        for(i=[0 : len(loc_c)-1]){
+            hull(){
+                linear_extrude(height_s)
+                    polygon(points=loc_c[i]);
+                translate(loc_s[i]){
+                    cylinder(d=dia_s+space_s,h=height_s);
+                }
+            }
+        }
+    }
+}
+