Nozzle 1: oval opening

nozzle1.py

@@ -0,0 +1,56 @@
+#!/usr/bin/env python3
+
+from build123d import *
+
+from math import sin, cos, tan, pi
+
+ALIGN_BOTTOM = (Align.CENTER, Align.CENTER, Align.MIN)
+ALIGN_TOP = (Align.CENTER, Align.CENTER, Align.MAX)
+
+plug_base_d = 60.8
+plug_clip_d = 62
+plug_clip_offset = 12
+plug_clip_l = 2.5
+plug_l = 21
+plug_wall_t = 2.5
+
+plug_notch_w = 3
+plug_notch_offset = 3
+plug_notch_depth = plug_l - plug_notch_offset
+
+adapter_outer_d = 65
+adapter_l = 30
+
+nozzle_l = 100
+nozzle_d = 62
+
+clip = Pos(Z=plug_clip_offset) * Cylinder(plug_clip_d/2, plug_clip_l, align=ALIGN_BOTTOM)
+
+notches = [ \
+        Pos(Z=plug_notch_offset) * Box(plug_clip_d, plug_notch_w, plug_notch_depth, align=ALIGN_BOTTOM),
+        Rot(Z=90) * Pos(Z=plug_notch_offset) * Box(plug_clip_d, plug_notch_w, plug_notch_depth, align=ALIGN_BOTTOM),
+    ]
+
+overall_l = plug_l + adapter_l + nozzle_l
+duct = Pos(Z=plug_l) * Cylinder(plug_base_d/2 - plug_wall_t, overall_l, align=ALIGN_TOP)
+
+plug = Cylinder(plug_base_d/2, plug_l, align=ALIGN_BOTTOM) + clip - notches
+
+adapter = Cylinder(adapter_outer_d/2, adapter_l, align=ALIGN_TOP)
+
+angle = 50
+cutoff_l = nozzle_d / cos(angle*pi/180)
+cutoff_h = nozzle_d
+cutoff_box = \
+        Pos(X=nozzle_d/2, Z=-nozzle_l-adapter_l) * \
+        Rot(Y=angle) * \
+        Pos(X=-cutoff_l/2) * \
+        Box(cutoff_l, nozzle_d, cutoff_h, align=ALIGN_TOP)
+
+nozzle = Pos(Z=-adapter_l) * Cylinder(nozzle_d/2, nozzle_l, align=ALIGN_TOP) \
+        - cutoff_box
+
+device = plug + adapter + nozzle - duct
+
+show_object(device, "device", options={"alpha":0.0, "color": (192, 192, 192)})
+#show_object(cutoff_box, "cutoff_box", options={"alpha":0.7, "color": (255,   0,   0)})