adding lip plus gland holes

fan_control_box.py

@@ -24,8 +24,10 @@ top_screw = ButtonHeadScrew(
     simple=screw_simple,
 )
 
-gland_diameter = 15
+gland_diameter = 15.5
+gland_radius = gland_diameter / 2.0
 barrel_diameter = 11
+barrel_radius = barrel_diameter / 2.0
 
 # digikey perfboard
 # It's the distance to the *middle* of the hole
@@ -56,10 +58,6 @@ pwm_height = 34
 
 wall_thickness = 3
 
-# for a box, not octogon
-# box_height = 115 + wall_thickness
-# box_width = 157 + wall_thickness
-
 box_radius = 87 + wall_thickness
 box_thickness = 42
 
@@ -204,18 +202,31 @@ def make_component_holder_self_tapping(
     )
 
 
-"""
-lower_box = (
-    lower_box.box(box_height, box_width, box_thickness)
-    .workplane(offset=wall_thickness)
-    .box(
-        box_height - wall_thickness,
-        box_width - wall_thickness,
-        box_thickness,
-        combine="cut",
-    )
-)
-"""
+def add_gland_holes(result, side_index, gland_holes):
+    num_sides = 8
+    # Calculate the angle of the side's normal
+    angle_step = 360 / (num_sides * 2)
+    angle = angle_step * side_index + angle_step
+
+    holes = Workplane("YZ").workplane(offset=82)
+
+    for i, (x_offset, y_offset, cylinder_height, cylinder_radius) in enumerate(
+        gland_holes
+    ):
+        if i < len(gland_holes) - 1:
+            holes = (
+                holes.move(x_offset, y_offset)
+                .cylinder(cylinder_height, cylinder_radius)
+                .workplane(offset=0)
+            )
+        else:
+            holes = holes.move(x_offset, y_offset).cylinder(
+                cylinder_height, cylinder_radius
+            )
+
+    holes = holes.rotate((0, 0, 0), (0, 0, 1), angle)
+    return result.cut(holes)
+
 
 lower_box = (
     lower_box.makePolygon(
@@ -237,6 +248,16 @@ lower_box = (
         )
     )
     .extrude(box_thickness * 2, combine="cut")
+    .workplane(offset=(box_thickness / 2.0) + 8)
+    .makePolygon(
+        regularPolygon(
+            nSides=8,
+            radius=box_radius - wall_thickness + 2,
+            thetaStart=0,
+            thetaEnd=360,
+        )
+    )
+    .extrude(box_thickness * 2, combine="cut")
 )
 
 lower_box = make_component_holder_octogon(
@@ -300,7 +321,25 @@ lower_box = make_component_holder_self_tapping(
     y_offset=15,
 )
 
-# lower_box =  lower_box.workplane(offset=(wall_thickness / 2.0)).box(lbc_height, 5, 13)
+# cable gland holes
+lower_box = add_gland_holes(
+    lower_box,
+    10,
+    [
+        (-15, gland_radius * 3.0, 5, gland_radius),
+        (15, gland_radius * 3.0, 5, gland_radius),
+    ],
+)
+
+lower_box = add_gland_holes(
+    lower_box,
+    8,
+    [
+        (-15, barrel_radius * 4.0, 5, barrel_radius),
+        (15, gland_radius * 3.0, 5, gland_radius),
+    ],
+)
+
 
 cq.exporters.export(lower_box, "/home/deck/model_files/fan_control_box_lower.stl")