WIP

LibrePCB · Oct 10, 2023 · 5834e6e · 5834e6e
1 parent 7007b9b
commit 5834e6e
Showing 1 changed file with 44 additions and 8 deletions.
diff --git a/generate_sot.py b/generate_sot.py
@@ -14,6 +14,7 @@ def generate(
     body_length: float,
     total_height: float,
     lead_span: float,
+    lead_height: float,
     lead_contact_length: float,
     leads_left: Iterable[Tuple[str, float, float]],
     leads_right: Iterable[Tuple[str, float, float]],
@@ -26,7 +27,6 @@ def generate(
     dot_diameter = min(body_width * 0.25, 0.8)
     dot_position = dot_diameter
     dot_depth = 0.1
-    lead_height = 0.17
     lead_z_top = body_standoff + (body_height / 2)
     bend_radius = 0.1 + (lead_height / 2)
 
@@ -43,20 +43,21 @@ def generate(
         .cylinder(5, dot_diameter / 2, centered=(True, True, False), combine='cut')
     dot = cq.Workplane('XY', origin=dot_center) \
         .cylinder(0.05, dot_diameter / 2, centered=(True, True, False))
-    lead_path = cq.Workplane("XZ") \
-        .hLine(lead_contact_length - (lead_height / 2) - bend_radius) \
-        .ellipseArc(x_radius=bend_radius, y_radius=bend_radius, angle1=270, angle2=360, sense=1) \
-        .vLine(lead_z_top - lead_height - (2 * bend_radius)) \
-        .ellipseArc(x_radius=bend_radius, y_radius=bend_radius, angle1=90, angle2=180, sense=-1) \
-        .hLine((lead_span / 2) - bend_radius - lead_contact_length + (lead_height / 2))
-    leads_by_width = dict()
 
     assembly = StepAssembly(name)
     assembly.add_body(body, 'body', StepColor.IC_BODY)
     assembly.add_body(dot, 'dot', StepColor.IC_PIN1_DOT)
+
+    leads_by_width = dict()
     for x_sgn, rotation, leads in [(-1, 0, leads_left), (1, 180, leads_right)]:
         for lead_name, lead_y, lead_width in leads:
             if lead_width not in leads_by_width:
+                lead_path = cq.Workplane("XZ") \
+                    .hLine(lead_contact_length - (lead_height / 2) - bend_radius) \
+                    .ellipseArc(x_radius=bend_radius, y_radius=bend_radius, angle1=270, angle2=360, sense=1) \
+                    .vLine(lead_z_top - lead_height - (2 * bend_radius)) \
+                    .ellipseArc(x_radius=bend_radius, y_radius=bend_radius, angle1=90, angle2=180, sense=-1) \
+                    .hLine((lead_span / 2) - bend_radius - lead_contact_length + (lead_height / 2))
                 leads_by_width[lead_width] = cq.Workplane('ZY') \
                     .rect(lead_height, lead_width) \
                     .sweep(lead_path)
@@ -77,12 +78,46 @@ def generate(
 
 
 if __name__ == '__main__':
+    generate(
+        name='SOT223-4P230_700X180L175X75T175X300',
+        body_width=3.5,
+        body_length=6.5,
+        total_height=1.8,
+        lead_span=7.0,
+        lead_height=0.27,
+        lead_contact_length=0.9,
+        leads_left=[
+            ('1', 2.3, 0.7),
+            ('2', 0, 0.7),
+            ('3', -2.3, 0.7),
+        ],
+        leads_right=[
+            ('4', 0, 3.0),
+        ],
+    )
+    generate(
+        name='SOT23-3',
+        body_width=1.3,
+        body_length=2.9,
+        total_height=1.1,
+        lead_span=2.3,
+        lead_height=0.14,
+        lead_contact_length=0.5,
+        leads_left=[
+            ('1', 0.95, 0.4),
+            ('2', -0.95, 0.4),
+        ],
+        leads_right=[
+            ('3', 0, 0.4),
+        ],
+    )
     generate(
         name='SOT95P280X145-5',
         body_width=1.6,
         body_length=2.9,
         total_height=1.45,
         lead_span=2.8,
+        lead_height=0.17,
         lead_contact_length=0.45,
         leads_left=[
             ('1', 0.95, 0.4),
@@ -100,6 +135,7 @@ def generate(
         body_length=2.9,
         total_height=1.45,
         lead_span=2.8,
+        lead_height=0.17,
         lead_contact_length=0.45,
         leads_left=[
             ('1', 0.95, 0.4),