From 1a8a77a52fc85c8e84000541e762c6edbdd88318 Mon Sep 17 00:00:00 2001
From: Christian Colglazier <christian@cacolglazier.com>
Date: Sat, 28 May 2022 09:31:22 -0400
Subject: [PATCH] Adjusted dimensions for printing

---
 follow_focus.py | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/follow_focus.py b/follow_focus.py
index 6f9deba..307d0ea 100644
--- a/follow_focus.py
+++ b/follow_focus.py
@@ -13,13 +13,14 @@ m3_head_depth=       3
 m3_passthrough=      3.5
 
 # Fastener dimensions
-fastener_width=      11
+fastener_width=      11.5
 fastener_height=     3.5
 fastener_length=     20
 fastener_h_spacing=  .2
 fastener_gap=        .2
-hex_diameter=        8.5
+hex_diameter=        10
 hex_depth=           4
+m5_passthrough=      5.5
 
 # NEMA 17 stepper motor
 stepper_motor_size=  42.0
@@ -42,7 +43,7 @@ lid_stepper_hole=    5.5
 # Gears
 mod=                 0.8
 gear_gap=            0.2
-gear_offset=         0.5
+gear_offset=         0.2
 large_gear_diameter= 8.5
 gear_thinkness=      10
 sg_teeth=            11
@@ -51,6 +52,7 @@ sg_teeth=            11
 mount_gap=           2
 support_radius=      11/2
 end_y=               -4.3
+step_dep=            0.4
 hack_num=            0.000001             
 
 # Calculated values
@@ -224,7 +226,9 @@ fastener = fastener.faces('<<Y[-1]').workplane().circle(fastener_width/6).extrud
 fastener = fastener.faces('<<Y[-1]').center(fastener_length,0)\
                                     .sketch().regularPolygon(hex_diameter/2,6)\
                                              .finalize().cutBlind(-hex_depth)
-fastener = fastener.faces('<<Y[-6]').workplane().circle(5/2).cutThruAll()
+
+fastener = fastener.faces('<<Y[-6]').workplane().circle(m5_passthrough/2).cutThruAll()
+fastener = fastener.faces('<<Y[-6]').workplane().rect(hex_diameter,hex_diameter/2).cutBlind(-step_dep)
 
 # Lid large gear mount point
 lid = lid.faces('>Z[0]').workplane().center(lg_x+hack_num,-lg_y)\
@@ -236,12 +240,12 @@ lid = lid.faces('>Z[0]').workplane().center(-hack_num, 0).vLine(-support_radius+
 
 # Lid Holes
 lid = lid.faces('>Z[0]').workplane().circle(large_gear_diameter/2-gear_offset).extrude(gear_thinkness/2)
-cut = boreHole(m3_head_diameter, m3_head_depth, 0.4, m3_passthrough, m3_passthrough*2).translate(lid.faces('<Z[0]').workplane().val())
+cut = boreHole(m3_head_diameter, m3_head_depth, step_dep, m3_passthrough, m3_passthrough*2).translate(lid.faces('<Z[0]').workplane().val())
 lid = lid.cut(cut)
 c = lid.faces('<Z[0]').workplane().center(-stepper_motor_size+wall_width,-stepper_motor_size+offset/2-loop_width).val()
 drill = lid.faces('<Z[0]').workplane().center(-stepper_motor_size+wall_width,-stepper_motor_size+offset/2-loop_width).circle(m3_tap/2)\
                                       .extrude(-part_thinkness+wall_width, combine=False)
-cut = boreHole(m3_head_diameter, m3_head_depth, 0.4, m3_passthrough, m3_passthrough).translate(c)
+cut = boreHole(m3_head_diameter, m3_head_depth, step_dep, m3_passthrough, m3_passthrough).translate(c)
 base = base.cut(drill)
 lid = lid.cut(cut)
 
@@ -257,7 +261,7 @@ s_gear = cq.Workplane('XY').gear(SpurGear(module=mod,
 
 
 # Stepper motor mount point
-tab_distance = 4/2
+tab_distance = 4
 shaft_diameter = 5
 cut = cq.Workplane('XY').circle(shaft_diameter/2).extrude(gear_thinkness)
 cut = cut.workplane().vLine(2*tab_distance, forConstruction=True).rect(shaft_diameter,tab_distance).cutThruAll()