add openscad prototype for scanner body. draw m12 lense holder

1 files changed, 91 insertions, 0 deletions

diff --git a/body/m12_lense_holder.scad b/body/m12_lense_holder.scad
new file mode 100644
index 0000000..63df125
--- /dev/null
+++ b/body/m12_lense_holder.scad
@@ -0,0 +1,91 @@
+// calculate cylinder/circle "Fragments Number" based on diameter
+function diameterToFn(d) = (d * PI * 3);
+
+// m12 cam holder size
+$m12_lense_holder_size = 13;
+// bottom part height
+$m12_lense_holder_bottom_h = 3.5;
+// top part height
+$m12_lense_holder_top_h = 3.5;
+// distance between holes centers
+$m12_lense_holder_d_btw_holes = 18;
+// screw holes outer diameter
+$m12_lense_holder_sh_outer_d = 4;
+// screw holes inner diameter
+$m12_lense_holder_sh_inner_d = 1.5;
+// left hole offset
+$m12_lense_holder_l_hole_offset = [-$m12_lense_holder_d_btw_holes / 2, 0, 0];
+// right hole offset
+$m12_lense_holder_r_hole_offset = [$m12_lense_holder_d_btw_holes / 2, 0, 0];
+// lense hole diameter
+$m12_lense_holder_lense_hole_diameter = 12;
+
+// m12 lense holder without holes
+module m12_lense_holder_wo_holes()
+{
+    $S = $m12_lense_holder_size;
+    $cube_size = [$S, $S, $m12_lense_holder_bottom_h];
+
+    // bottom cube
+    translate([0, 0, $cube_size[2] / 2])
+    cube($cube_size, center = true);
+    
+    // top cylinder
+    translate([0, 0, $cube_size[2]])
+    cylinder($fn=diameterToFn($S), h = $m12_lense_holder_top_h, d = $S);
+    
+    // screw holes, outer body to cut from
+    hull()
+    {
+        translate($m12_lense_holder_l_hole_offset)
+        cylinder(
+            $fn = diameterToFn($m12_lense_holder_sh_outer_d),
+            h = $m12_lense_holder_bottom_h,
+            d = $m12_lense_holder_sh_outer_d);
+
+        translate($m12_lense_holder_r_hole_offset)
+        cylinder(
+            $fn = diameterToFn($m12_lense_holder_sh_outer_d),
+            h = $m12_lense_holder_bottom_h,
+            d = $m12_lense_holder_sh_outer_d);
+    }
+}
+
+module m12_lense_holder_holes()
+{
+    // left screw hole
+    translate($m12_lense_holder_l_hole_offset)
+    cylinder(
+        $fn = diameterToFn($m12_lense_holder_sh_inner_d),
+        h = $m12_lense_holder_bottom_h * 3,
+        d = $m12_lense_holder_sh_inner_d,
+        center = true);
+
+    // right screw hole
+    translate($m12_lense_holder_r_hole_offset)
+    cylinder(
+        $fn = diameterToFn($m12_lense_holder_sh_inner_d),
+        h = $m12_lense_holder_bottom_h * 3,
+        d = $m12_lense_holder_sh_inner_d,
+        center = true);
+
+    // lense hole
+    cylinder(
+        $fn = diameterToFn($m12_lense_holder_lense_hole_diameter),
+        d = $m12_lense_holder_lense_hole_diameter,
+        h = ($m12_lense_holder_bottom_h + $m12_lense_holder_top_h) * 3,
+        center = true);
+}
+   
+module m12_lense_holder()
+{
+    difference()
+    {
+        
+        m12_lense_holder_wo_holes();
+        m12_lense_holder_holes();
+    }
+}
+
+//m12_lense_holder();
+//m12_lense_holder_wo_holes();
\ No newline at end of file