Add holes for mounting alignment plates to base, and x stepper mount

gantry.py

@@ -141,10 +141,28 @@ class Gantry:
             w.copyWorkplane(right_bearing_base)
             .rect(tube_h, x_rail_spacing - tube_w)
             .extrude(x_mount_z)
-            .copyWorkplane(right_bearing_base)
+            .center(-ballscrew_x_offset, 0)
-            .center(-4, 0)
+            .tag("ballscrew_center")
-            .rect(35, 35)
+            .circle(12 / 2)
             .extrude(20, combine="s")
+            .workplaneFromTagged("ballscrew_center")
+            .center(35 / 2 - 4 / 2, 0)
+            .rect(4, 35)
+            .extrude(20, combine="s")
+            .workplaneFromTagged("ballscrew_center")
+            .center(-35 / 2 + 4 / 2, 0)
+            .rect(4, 35)
+            .extrude(20, combine="s")
+            .workplaneFromTagged("ballscrew_center")
+            .center(0, -35 / 2 + 4 / 2)
+            .rect(25, 4)
+            .extrude(20, combine="s")
+            .workplaneFromTagged("ballscrew_center")
+            .center(0, 35 / 2 - 4 / 2)
+            .rect(25, 4)
+            .extrude(20, combine="s")
+            # .rect(35, 35)
+            # .extrude(20, combine="s")
         )
         self.right_bearing_mount = self.ball_screw_model.fixedBearingHoles(
             self.right_bearing_mount
@@ -155,6 +173,73 @@ class Gantry:
             .rect(tube_h, x_rail_spacing - tube_w)
             .extrude(x_mount_z)
         )
+        # this doesn't work for some reason, i guess just use the fixed bearing mount flipped
+        self.left_bearing_mount = self.ball_screw_model.floatingBearingHoles(
+            self.left_bearing_mount
+        )
+
+        points = [(40 * (i - 5.5), y) for i in range(12) for y in [-18, 18]]
+        points += [
+            (8 * i + j, y)
+            for i in range(-2, 3)
+            for y in [-18, 18]
+            for j in [column_spacing / 2, -column_spacing / 2]
+        ]
+        top_w = cq.Workplane().copyWorkplane(self.upper_front_plate)
+        bot_w = cq.Workplane().copyWorkplane(self.lower_front_plate)
+
+        def holes(w, ref):
+            return w.copyWorkplane(ref).pushPoints(points).hole(3)
+
+        self.upper_front_plate = holes(self.upper_front_plate, top_w)
+        self.upper_back_plate = holes(self.upper_back_plate, top_w)
+        # self.upper = top_holes(self.upper)
+        self.lower_front_plate = holes(self.lower_front_plate, bot_w)
+        self.lower_back_plate = holes(self.lower_back_plate, bot_w)
+        # self.lower = top_holes(self.lower)
+
+        stepper_mount_w = w.transformed(
+            offset=(
+                column_spacing / 2 + tube_w / 2,
+                ballscrew_x_offset,
+                (upper_center + lower_center) / 2,
+            ),
+            rotate=(0, 90, 0),
+        )
+
+        self.stepper_mount = (
+            cq.Workplane()
+            .copyWorkplane(
+                stepper_mount_w.transformed(offset=(0, 0, 0), rotate=(0, 0, 45))
+            )
+            .rect(58.4, 58.4)
+            .extrude(5)
+            .copyWorkplane(
+                stepper_mount_w.transformed(offset=(0, -ballscrew_x_offset, 0))
+            )
+            .rect(88, tube_h)
+            .extrude(5)
+            .copyWorkplane(
+                stepper_mount_w.transformed(offset=(0, 0, 0), rotate=(180, 0, 45))
+            )
+            .rect(47.41, 47.41, forConstruction=True)
+            .vertices()
+            .hole(5)
+            .copyWorkplane(
+                stepper_mount_w.transformed(offset=(0, 0, 0), rotate=(180, 0, 0))
+            )
+            .hole(40)
+            .copyWorkplane(
+                stepper_mount_w.transformed(offset=(0, -ballscrew_x_offset, 5))
+            )
+            .rect(78, 30)
+            .vertices()
+            .hole(5)
+            # .copyWorkplane(stepper_mount_w)
+            # .circle(40)
+            # .extrude(10)
+        )
+        self.stepper_mount = self.ball_screw_model.fixedBearingHoles(self.stepper_mount)
 
     def assembly(self):
         return (
@@ -174,6 +259,7 @@ class Gantry:
             .add(self.floating_bearing, name="floating bearing")
             .add(self.right_bearing_mount, name="fixed bearing mount")
             .add(self.left_bearing_mount, name="floating bearing mount")
+            .add(self.stepper_mount, name="stepper mount")
         )
 
 
@@ -339,6 +425,10 @@ class Carrier:
             .transformed(offset=(0, 0, z_spacer_z))
             .rect(200, z_rail_len)
             .extrude(10)
+            .copyWorkplane(self.plane)
+            .center(0, z_rail_len / 2 - 40 / 2)
+            .rect(68, 40)
+            .extrude(20, combine="s")
         )
         self.plate = carriage.left_rail.holes(self.plate)
         self.plate = carriage.right_rail.holes(self.plate)
@@ -349,7 +439,7 @@ class Carrier:
             self.plane.transformed(
                 offset=(
                     0,
-                    z_ballscrew_len / 2,
+                    z_ballscrew_len / 2 + 20,
                     # 25,
                     z_spacer_z - 25 + 5,  # offset into the spindle plate 5mm
                 ),  # -(HGR20.H - z_spacer_z) / 2 - 1.2),
@@ -361,6 +451,21 @@ class Carrier:
         self.fixed_bearing = self.ballscrew_model.fixedBearing()
         self.floating_bearing = self.ballscrew_model.floatingBearing()
 
+        angle_z = 0.188 * 25.4
+        angle_w = 2.0 * 25.4
+        self.stepper_mount = (
+            cq.Workplane()
+            .copyWorkplane(self.plane)
+            .transformed(offset=(-200 / 2, z_rail_len / 2, 0), rotate=(0, 90, 0))
+            .sketch()
+            .push([(-10 - 10 - angle_z + angle_w / 2, angle_z / 2 + 5)])
+            .rect(angle_w, angle_z)
+            .push([(-10 - 10 - angle_z / 2, 5 + angle_z - angle_w / 2)])
+            .rect(angle_z, angle_w)
+            .finalize()
+            .extrude(200)
+        )
+
         carriage.z_nut = self.ballscrew_model.nut(z_ballscrew_len / 2 + carriage.z)
         # TODO add carriage nut mount to carriage
 
@@ -373,6 +478,7 @@ class Carrier:
             .add(self.ballscrew, name="z ballscrew")
             .add(self.fixed_bearing, name="z fixed bearing")
             .add(self.floating_bearing, name="z floating bearing")
+            .add(self.stepper_mount, name="stepper motor/ballscrew mount")
         )
 
 
@@ -430,4 +536,3 @@ show_object(full_assembly)
 # show_object(ca.assembly())
 # show_object(c.assembly())
 # show_object(g.assembly())
-

utils.py

@@ -203,7 +203,7 @@ class SFU1204:
         Y = 10.8
         Z = 1.5
 
-        w = self.w.transformed(offset=(0, self.len - 10 + L, 0), rotate=(90, 0, 0))
+        w = self.w.transformed(offset=(0, self.len - 10 + L - 20, 0), rotate=(90, 0, 0))
         solid = (
             solid.copyWorkplane(w)
             .center(0, -E / 2)
@@ -476,4 +476,3 @@ if __name__ == "__main__":
     show_object(bearing_holder2)
 
     # show_object(cq.Workplane().placeSketch(HGR20.rail_sketch().assemble()).extrude(10))
-