From 17646f5f7461c065af3c293bc2e4ac59063162fa Mon Sep 17 00:00:00 2001
From: Christian Colglazier <christian@cacolglazier.com>
Date: Thu, 19 May 2022 11:21:42 -0400
Subject: [PATCH] Follow focus stepper motor mounting holes

---
 follow_focus.py | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/follow_focus.py b/follow_focus.py
index 9d2f1e7..60cf306 100644
--- a/follow_focus.py
+++ b/follow_focus.py
@@ -60,8 +60,15 @@ base = base.edges('|Z and >Y').fillet(outer_fillets)
 base = base.edges('|Z and <X').fillet(outer_fillets)
 base = base.edges('|Z').edges('<<Y[-2]').fillet(5)
 
+# Shell
 base = base.faces('+Z').shell(-1.6)
 
+# Stepper motor mount points
+stepper_hole_width=31.0
+stepper_hole_radius=stepper_hole_width/2*math.sqrt(2)
+stepper_center = cq.Workplane('XY').lineTo(0, offset).polarLine(stepper_motor_size/2, 90-slant_degree).polarLine(stepper_motor_size/2, -slant_degree).val().endPoint().toTuple()
+base = base.faces('>>Z[0]').workplane().center(stepper_center[0], -stepper_center[1]).circle(22.5/2).pushPoints([(stepper_hole_radius*math.cos(math.radians(45+slant_degree)),stepper_hole_radius*math.sin(math.radians(45+slant_degree))), (stepper_hole_radius*math.cos(math.radians(135+slant_degree)),stepper_hole_radius*math.sin(math.radians(135+slant_degree))),(stepper_hole_radius*math.cos(math.radians(225+slant_degree)),stepper_hole_radius*math.sin(math.radians(225+slant_degree))),(stepper_hole_radius*math.cos(math.radians(315+slant_degree)),stepper_hole_radius*math.sin(math.radians(315+slant_degree)))]).circle(3/2).cutBlind(-1.6)
+
 # Render
 show_object(base, name='Follow Focus Base')