diff --git a/hardware/sensorboards/2020-centered-4x-12deg/2020-centered-4x-12deg.pro b/hardware/sensorboards/2020-centered-4x-12deg/2020-centered-4x-12deg.pro
deleted file mode 100644
index 1330aef..0000000
--- a/hardware/sensorboards/2020-centered-4x-12deg/2020-centered-4x-12deg.pro
+++ /dev/null
@@ -1,14 +0,0 @@
-update=2021-02-27 09:18:01 PM
-version=1
-last_client=kicad
-[general]
-version=1
-RootSch=
-BoardNm=
-[cvpcb]
-version=1
-NetIExt=net
-[eeschema]
-version=1
-LibDir=
-[eeschema/libraries]
diff --git a/hardware/sensorboards/2020-centered-4x-12deg/2020-centered-4x-12deg.sch b/hardware/sensorboards/2020-centered-4x-12deg/2020-centered-4x-12deg.sch
deleted file mode 100644
index 86821b5..0000000
--- a/hardware/sensorboards/2020-centered-4x-12deg/2020-centered-4x-12deg.sch
+++ /dev/null
@@ -1,285 +0,0 @@
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diff --git a/hardware/sensorboards/2020-centered-4x-12deg/2020-centered-4x-12deg-cache.lib b/hardware/sensorboards/2040-centered-4x-12deg/2040-centered-4x-12deg-cache.lib
similarity index 100%
rename from hardware/sensorboards/2020-centered-4x-12deg/2020-centered-4x-12deg-cache.lib
rename to hardware/sensorboards/2040-centered-4x-12deg/2040-centered-4x-12deg-cache.lib
diff --git a/hardware/sensorboards/2020-centered-4x-12deg/2020-centered-4x-12deg.kicad_pcb b/hardware/sensorboards/2040-centered-4x-12deg/2040-centered-4x-12deg.kicad_pcb
similarity index 98%
rename from hardware/sensorboards/2020-centered-4x-12deg/2020-centered-4x-12deg.kicad_pcb
rename to hardware/sensorboards/2040-centered-4x-12deg/2040-centered-4x-12deg.kicad_pcb
index a58dcc4..2358238 100644
--- a/hardware/sensorboards/2020-centered-4x-12deg/2020-centered-4x-12deg.kicad_pcb
+++ b/hardware/sensorboards/2040-centered-4x-12deg/2040-centered-4x-12deg.kicad_pcb
@@ -33,10 +33,10 @@
     (pcbplotparams
       (layerselection 0x00010fc_ffffffff)
       (disableapertmacros false)
-      (usegerberextensions false)
+      (usegerberextensions true)
       (usegerberattributes true)
       (usegerberadvancedattributes true)
-      (creategerberjobfile true)
+      (creategerberjobfile false)
       (svguseinch false)
       (svgprecision 6)
       (excludeedgelayer true)
@@ -56,7 +56,7 @@
       (plotvalue true)
       (plotinvisibletext false)
       (sketchpadsonfab false)
-      (subtractmaskfromsilk false)
+      (subtractmaskfromsilk true)
       (outputformat 1)
       (mirror false)
       (drillshape 0)
diff --git a/hardware/sensorboards/2020-centered-4x-12deg/2020-centered-4x-12deg.kicad_prl b/hardware/sensorboards/2040-centered-4x-12deg/2040-centered-4x-12deg.kicad_prl
similarity index 92%
rename from hardware/sensorboards/2020-centered-4x-12deg/2020-centered-4x-12deg.kicad_prl
rename to hardware/sensorboards/2040-centered-4x-12deg/2040-centered-4x-12deg.kicad_prl
index 780938a..b80064d 100644
--- a/hardware/sensorboards/2020-centered-4x-12deg/2020-centered-4x-12deg.kicad_prl
+++ b/hardware/sensorboards/2040-centered-4x-12deg/2040-centered-4x-12deg.kicad_prl
@@ -64,11 +64,11 @@
       35,
       36
     ],
-    "visible_layers": "000fcff_80000001",
+    "visible_layers": "000b0ff_80000001",
     "zone_display_mode": 0
   },
   "meta": {
-    "filename": "2020-centered-4x-12deg.kicad_prl",
+    "filename": "2040-centered-4x-12deg.kicad_prl",
     "version": 3
   },
   "project": {
diff --git a/hardware/sensorboards/2020-centered-4x-12deg/2020-centered-4x-12deg.kicad_pro b/hardware/sensorboards/2040-centered-4x-12deg/2040-centered-4x-12deg.kicad_pro
similarity index 100%
rename from hardware/sensorboards/2020-centered-4x-12deg/2020-centered-4x-12deg.kicad_pro
rename to hardware/sensorboards/2040-centered-4x-12deg/2040-centered-4x-12deg.kicad_pro
diff --git a/hardware/sensorboards/2020-centered-4x-12deg/2020-centered-4x-12deg.kicad_sch b/hardware/sensorboards/2040-centered-4x-12deg/2040-centered-4x-12deg.kicad_sch
similarity index 100%
rename from hardware/sensorboards/2020-centered-4x-12deg/2020-centered-4x-12deg.kicad_sch
rename to hardware/sensorboards/2040-centered-4x-12deg/2040-centered-4x-12deg.kicad_sch
diff --git a/hardware/sensorboards/2020-centered-4x-12deg/fp-lib-table b/hardware/sensorboards/2040-centered-4x-12deg/fp-lib-table
similarity index 100%
rename from hardware/sensorboards/2020-centered-4x-12deg/fp-lib-table
rename to hardware/sensorboards/2040-centered-4x-12deg/fp-lib-table
diff --git a/hardware/sensorboards/createboard.py b/hardware/sensorboards/createboard.py
index 3ed1e0d..f811da6 100644
--- a/hardware/sensorboards/createboard.py
+++ b/hardware/sensorboards/createboard.py
@@ -1,6 +1,11 @@
 import pcbnew
 import itertools
 
+# NOTE
+# the boards don't have netclasses, or anything specifying min
+# trace widths or spacings, so pcbnew will let you make things
+# which don't pass DRC. that makes this largely unhelpful. grrr.
+
 # Generates mechanical layouts for sensorboards.
 # You can vary all sorts of parameters and probably get a reasonable
 # part placement and board outline instantly, instead of having to