diff --git a/boxes/generators/dividertray.py b/boxes/generators/dividertray.py
index 2b9069a..fc16f35 100644
--- a/boxes/generators/dividertray.py
+++ b/boxes/generators/dividertray.py
@@ -19,7 +19,7 @@ from __future__ import annotations
 import math
 from functools import partial
 
-from boxes import Boxes, edges, boolarg
+from boxes import Boxes, edges, boolarg, lids
 
 
 class NotchSettings(edges.Settings):
@@ -94,6 +94,7 @@ You will likely need to cut each of the dividers you want multiple times.
         Boxes.__init__(self)
         self.addSettingsArgs(edges.FingerJointSettings)
         self.addSettingsArgs(edges.HandleEdgeSettings)
+        self.addSettingsArgs(lids.LidSettings)
         self.buildArgParser("sx", "sy", "h", "outside")
         self.addSettingsArgs(SlotSettings)
         self.addSettingsArgs(NotchSettings)
@@ -194,6 +195,8 @@ You will likely need to cut each of the dividers you want multiple times.
                 side_wall_length, self.h, [be, "f", se, "f"], move="up", label="Sidepiece " + str(_ + 1)
             )
 
+        self.lid(facing_wall_length, side_wall_length)
+
         # Switch to right side of the file
         self.ctx.restore()
         self.rectangularWall(
diff --git a/boxes/generators/drillbox.py b/boxes/generators/drillbox.py
index 34c646d..6cb73c7 100644
--- a/boxes/generators/drillbox.py
+++ b/boxes/generators/drillbox.py
@@ -15,7 +15,7 @@
 #   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 from boxes import Boxes, edges, Color, ArgparseEdgeType
-from boxes.lids import _TopEdge
+from boxes.lids import _TopEdge, LidSettings
 
 class DrillBox(_TopEdge):
     """A parametrized box for drills"""
@@ -32,6 +32,7 @@ class DrillBox(_TopEdge):
         self.addSettingsArgs(edges.RoundedTriangleEdgeSettings, outset=1)
         self.addSettingsArgs(edges.StackableSettings)
         self.addSettingsArgs(edges.MountingSettings)
+        self.addSettingsArgs(LidSettings)
         self.argparser.add_argument(
             "--top_edge", action="store",
             type=ArgparseEdgeType("eStG"), choices=list("eStG"),
@@ -125,3 +126,4 @@ class DrillBox(_TopEdge):
             x, y, "ffff",
             callback=[lambda: self.drillholes(description=True)],
             move="right")
+        self.lid(x, y, self.top_edge)
diff --git a/boxes/generators/gridfinitybase.py b/boxes/generators/gridfinitybase.py
index 927a6ce..2f870c6 100644
--- a/boxes/generators/gridfinitybase.py
+++ b/boxes/generators/gridfinitybase.py
@@ -15,6 +15,7 @@
 #   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 from boxes import *
+from boxes import lids
 
 class GridfinityBase(Boxes):
     """A parameterized Gridfinity base"""
@@ -28,6 +29,7 @@ class GridfinityBase(Boxes):
     def __init__(self) -> None:
         Boxes.__init__(self)
         self.addSettingsArgs(edges.FingerJointSettings, space=4, finger=4)
+        self.addSettingsArgs(lids.LidSettings)
         self.argparser.add_argument("--x", type=int, default=3, help="number of grids in X direction")
         self.argparser.add_argument("--y", type=int, default=2, help="number of grids in Y direction")
         self.argparser.add_argument("--h", type=float, default=7*3, help="height of sidewalls of the tray (mm)")
@@ -69,23 +71,22 @@ class GridfinityBase(Boxes):
         b = self.edges.get(self.bottom_edge, self.edges["F"])
         sideedge = "F" # if self.vertical_edges == "finger joints" else "h"
 
-        with self.saved_context():
-            self.rectangularWall(x, h, [b, sideedge, t1, sideedge],
-                                 ignore_widths=[1, 6], move="up")
-            self.rectangularWall(x, h, [b, sideedge, t3, sideedge],
-                                 ignore_widths=[1, 6], move="up")
-
-            if self.bottom_edge != "e":
-                self.rectangularWall(x, y, "ffff", move="up")
-
-        self.rectangularWall(x, h, [b, sideedge, t3, sideedge],
-                             ignore_widths=[1, 6], move="right only")
+        self.rectangularWall(x, h, [b, sideedge, t1, sideedge],
+                             ignore_widths=[1, 6], move="right")
         self.rectangularWall(y, h, [b, "f", t2, "f"],
                              ignore_widths=[1, 6], move="up")
         self.rectangularWall(y, h, [b, "f", t4, "f"],
-                             ignore_widths=[1, 6], move="up")
+                             ignore_widths=[1, 6], move="")
+        self.rectangularWall(x, h, [b, sideedge, t3, sideedge],
+                             ignore_widths=[1, 6], move="left up")
+
+        if self.bottom_edge != "e":
+            self.rectangularWall(x, y, "ffff", move="up")
+
         return
 
     def render(self):
         self.create_base_plate()
         self.create_tray()
+        self.lid(self.x*self.pitch + 2*self.m,
+                 self.y*self.pitch + 2*self.m)
diff --git a/boxes/generators/gridfinitytraylayout.py b/boxes/generators/gridfinitytraylayout.py
index d0a2253..e815f4a 100644
--- a/boxes/generators/gridfinitytraylayout.py
+++ b/boxes/generators/gridfinitytraylayout.py
@@ -2,7 +2,7 @@ import boxes
 from boxes import Boxes
 from boxes.generators.traylayout import TrayLayout
 from boxes.Color import Color
-from boxes import restore
+from boxes import restore, lids
 
 class GridfinityTrayLayout(TrayLayout):
     """A Gridfinity Tray Generator based on TrayLayout"""
@@ -25,6 +25,7 @@ this compartment.
     def __init__(self) -> None:
         Boxes.__init__(self)
         self.addSettingsArgs(boxes.edges.FingerJointSettings)
+        self.addSettingsArgs(lids.LidSettings)
         self.buildArgParser(h=50)
         self.outside = True # We're *always* outside for gridfinity
         self.pitch = 42.0 # gridfinity pitch is defined as 42.
@@ -103,9 +104,13 @@ this compartment.
 
         self.prepare()
         self.walls()
+        with self.saved_context():
+            self.base_plate(callback=[self.baseplate_etching],
+                            move="mirror right")
+            foot = self.opening - self.opening_margin
+            for i in range(min(self.nx * self.ny, 4)):
+                self.rectangularWall(foot, foot, move="right")
         self.base_plate(callback=[self.baseplate_etching],
-                        move="mirror right")
-        foot = self.opening - self.opening_margin
-        for i in range(min(self.nx * self.ny, 4)):
-            self.rectangularWall(foot, foot, move="right")
-
+                        move="up only")
+        self.lid(sum(self.x) + (len(self.x)-1) * self.thickness,
+                 sum(self.y) + (len(self.y)-1) * self.thickness)
diff --git a/boxes/generators/smallpartstray.py b/boxes/generators/smallpartstray.py
index e8f9929..f2ada5a 100644
--- a/boxes/generators/smallpartstray.py
+++ b/boxes/generators/smallpartstray.py
@@ -15,6 +15,7 @@
 #   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 from boxes import *
+from boxes import lids
 from boxes.edges import CompoundEdge
 
 class SmallPartsTray(Boxes):
@@ -27,6 +28,7 @@ class SmallPartsTray(Boxes):
 
         self.addSettingsArgs(edges.FingerJointSettings)
         # self.addSettingsArgs(edges.StackableSettings)
+        self.addSettingsArgs(lids.LidSettings)
 
         self.buildArgParser(sx="50*3", y=100, h=30, outside=True)
         self.argparser.add_argument(
@@ -243,7 +245,11 @@ class SmallPartsTray(Boxes):
             
 
         if self.two_sided:
-            for l in self.sx:
-                self.render_simple_tray_divider(l, h, move="right")
+            with self.saved_context():
+                for l in self.sx:
+                    self.render_simple_tray_divider(l, h, move="right")
 
-            self.partsMatrix(len(self.sx), 0, "right", self.render_simple_tray_divider_feet)
+                self.partsMatrix(len(self.sx), 0, "right", self.render_simple_tray_divider_feet)
+            self.render_simple_tray_divider(l, h, move="up only")
+
+            self.lid(x, y)
diff --git a/boxes/generators/smallpartstray2.py b/boxes/generators/smallpartstray2.py
index 5fbad81..19e6526 100644
--- a/boxes/generators/smallpartstray2.py
+++ b/boxes/generators/smallpartstray2.py
@@ -15,7 +15,7 @@
 #   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 from boxes import *
-from boxes.lids import _TopEdge
+from boxes.lids import _TopEdge, LidSettings
 
 class TopEdge(edges.BaseEdge):
 
@@ -55,6 +55,7 @@ If there are no inner front to back walls just add everything to one side wall a
         Boxes.__init__(self)
         self.addTopEdgeSettings(fingerjoint={"surroundingspaces": 1.0},
                                 roundedtriangle={"outset" : 1})
+        self.addSettingsArgs(LidSettings)
         self.buildArgParser("sx", "sy", "hi", "outside", h=30)
         # "bottom_edge", "top_edge")
         self.argparser.add_argument(
@@ -178,7 +179,6 @@ If there are no inner front to back walls just add everything to one side wall a
             callback=[self.fingerHolesCB(self.sx, hi-t2)],
             move="up", label="floor front side")
         floors.append(hi-t2)
-        print(y, sum(floors), floors)
                 
         # Inner walls
 
@@ -198,6 +198,7 @@ If there are no inner front to back walls just add everything to one side wall a
 
         # top / lid
         self.drawLid(x, y, self.top_edge) # XXX deal with front
+        self.lid(x, y, self.top_edge)
 
         self.ctx.restore()
         self.rectangularWall(x, hi, "ffff", move="right only")
diff --git a/boxes/generators/traylayout.py b/boxes/generators/traylayout.py
index b119456..75c2cc8 100644
--- a/boxes/generators/traylayout.py
+++ b/boxes/generators/traylayout.py
@@ -17,7 +17,7 @@ from __future__ import annotations
 
 import boxes
 from boxes import *
-
+from boxes import lids
 
 class TrayLayoutFile(Boxes):
     """Generate a layout file for a typetray."""
@@ -101,6 +101,7 @@ You can replace the space characters representing the floor by a "X" to remove t
     def __init__(self) -> None:
         super().__init__()
         self.addSettingsArgs(boxes.edges.FingerJointSettings)
+        self.addSettingsArgs(lids.LidSettings)
         self.buildArgParser("h", "hi", "outside", "sx", "sy")
         if self.UI == "web":
             self.argparser.add_argument(
@@ -452,4 +453,6 @@ You can replace the space characters representing the floor by a "X" to remove t
     def render(self) -> None:
         self.prepare()
         self.walls()
-        self.base_plate()
+        self.base_plate(move="up")
+        self.lid(sum(self.x) + (len(self.x)-1) * self.thickness,
+                 sum(self.y) + (len(self.y)-1) * self.thickness)
diff --git a/boxes/generators/typetray.py b/boxes/generators/typetray.py
index ec98bc2..c9cfc3b 100644
--- a/boxes/generators/typetray.py
+++ b/boxes/generators/typetray.py
@@ -15,7 +15,7 @@
 #   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 from boxes import *
-from boxes.lids import _TopEdge
+from boxes.lids import _TopEdge, LidSettings
 
 class TypeTray(_TopEdge):
     """Type tray - allows only continuous walls"""
@@ -26,6 +26,7 @@ class TypeTray(_TopEdge):
         Boxes.__init__(self)
         self.addTopEdgeSettings(fingerjoint={"surroundingspaces": 0.5},
                                 roundedtriangle={"outset" : 1})
+        self.addSettingsArgs(lids.LidSettings)
         self.buildArgParser("sx", "sy", "h", "hi", "outside", "bottom_edge",
                             "top_edge")
         self.argparser.add_argument(
@@ -156,6 +157,7 @@ class TypeTray(_TopEdge):
                 self.xSlots, self.ySlots], move="up", label="top")
         else:
             self.drawLid(x, y, self.top_edge)
+        self.lid(x, y, self.top_edge)
 
         self.ctx.restore()
         self.rectangularWall(x, hi, "ffff", move="right only")
diff --git a/boxes/lids.py b/boxes/lids.py
index 7ef6f12..e10e840 100644
--- a/boxes/lids.py
+++ b/boxes/lids.py
@@ -63,7 +63,7 @@ class Lid:
         if style == "flat":
             self.rectangularWall(x, y, "eeee",
                                  callback=[self.handleCB(x, y)],
-                                 move="right", label="lid bottom")
+                                 move="up", label="lid bottom")
             self.rectangularWall(x, y, "EEEE",
                                  callback=[self.handleCB(x, y)],
                                  move="up", label="lid top")