chiark / gitweb /
light bracket: dimensional adjustments
authorIan Jackson <ijackson@chiark.greenend.org.uk>
Sun, 22 Jul 2012 16:27:47 +0000 (17:27 +0100)
committerIan Jackson <ijackson@chiark.greenend.org.uk>
Sun, 22 Jul 2012 16:27:47 +0000 (17:27 +0100)
light-bracket.scad

index 6e42bf1..e83a465 100644 (file)
@@ -1,6 +1,7 @@
-remote_width=56.2;
-remote_height=124.7;
-remote_thick=6.8;
+shrinkage = 1.0126; // width of 56.2 gives 55.5
+remote_width= 56.2 * shrinkage;
+remote_height=124.7 * shrinkage;
+remote_thick=7.3; // height of 6.8 gives 6.3
 mainhole_thick=remote_thick+1;
 hook_hook_thick=1.5;
 hook_stem_thick=1.5;
@@ -84,7 +85,7 @@ module stuff() {
        mirror([1,0,0]) hstuff();
        base();
        for (y=screw_ys) translate([0, y, -20])
-               cylinder(r=7.5, h=21);
+               cylinder(r=6.5, h=21);
 }
 
 module screwhole(holedia, csdia) {
@@ -101,7 +102,8 @@ module bracket() {
                stuff();
                mainhole();
                for (y=screw_ys) translate([0, y, -base_thick+2])       
-                       screwhole(4,10);
+                       screwhole(5,8); //dia=4 gives 2.9
+                                        //holedia=10 gives 9.0 want 7.0
                translate([0,0,-50 - base_thick])
                        cube(center=true,[300,300,100]); // print bed
        }