diff --git a/2021-06_fab-step-ucbus/eagle.epf b/2021-06_fab-step-ucbus/eagle.epf
index a1b34d124e167c7b9948b5496d9c067c9f564948..d4ddac5f75b3714ec7ff3db540fed7dc2d80f48a 100644
--- a/2021-06_fab-step-ucbus/eagle.epf
+++ b/2021-06_fab-step-ucbus/eagle.epf
@@ -72,7 +72,7 @@ Package="8-MSOP-FAB"
 Type="Schematic Editor"
 Number=1
 File="fab-step-ucbus.sch"
-View="157.826 -12.2135 381.494 107.775"
+View="191.574 78.849 299.438 136.714"
 WireWidths=" 0.0762 0.1016 0.127 0.15 0.2 0.2032 0.254 0.3048 0.4064 0.508 0.6096 0.8128 1.016 1.27 2.54 0.1524"
 PadDiameters=" 0.254 0.3048 0.4064 0.6096 0.8128 1.016 1.27 1.4224 1.6764 1.778 1.9304 2.1844 2.54 3.81 6.4516 0"
 PadDrills=" 0.2 0.25 0.3 0.35 0.4 0.45 0.5 0.55 0.65 0.7 0.75 0.8 0.85 0.9 1 0.6"
@@ -111,14 +111,14 @@ ArcDirection=0
 AddLevel=2
 PadsSameType=0
 Layer=91
-Views=" 1: 157.826 -12.2135 381.494 107.775"
+Views=" 1: 191.574 78.849 299.438 136.714"
 Sheet="1"
 
 [Win_3]
 Type="Board Editor"
 Number=2
 File="fab-step-ucbus.brd"
-View="7.87615 -6.46716 55.6728 46.0692"
+View="0.566731 -11.2768 57.9232 51.767"
 WireWidths=" 0.1016 0.127 0.2 1.016 1.27 2.54 0.15 0.0762 0.4064 0.254 0.508 0.6096 0.8128 0.1524 0.2032 0.3048"
 PadDiameters=" 0.254 0.3048 0.4064 0.6096 0.8128 1.016 1.27 1.4224 1.6764 1.778 1.9304 2.1844 2.54 3.81 6.4516 0"
 PadDrills=" 0.2 0.25 0.3 0.35 0.4 0.45 0.5 0.55 0.65 0.7 0.75 0.8 0.85 0.9 1 0.6"
diff --git a/2021-06_fab-step-ucbus/fab-step-ucbus.brd b/2021-06_fab-step-ucbus/fab-step-ucbus.brd
index 079bf02c36e3df580f8f4d220a98c15778eacb12..5d796c3b24d1a93c6cd92baa3f3be651e25a3f27 100644
--- a/2021-06_fab-step-ucbus/fab-step-ucbus.brd
+++ b/2021-06_fab-step-ucbus/fab-step-ucbus.brd
@@ -6,7 +6,7 @@
 <setting alwaysvectorfont="no"/>
 <setting verticaltext="up"/>
 </settings>
-<grid distance="0.1" unitdist="mm" unit="mm" style="lines" multiple="1" display="yes" altdistance="5" altunitdist="mil" altunit="mil"/>
+<grid distance="0.05" unitdist="mm" unit="mm" style="lines" multiple="1" display="yes" altdistance="5" altunitdist="mil" altunit="mil"/>
 <layers>
 <layer number="1" name="Top" color="4" fill="1" visible="yes" active="yes"/>
 <layer number="2" name="Route2" color="16" fill="1" visible="no" active="no"/>
@@ -578,7 +578,7 @@ You are welcome to use this library for commercial purposes. For attribution, we
 <class number="0" name="default" width="0" drill="0">
 </class>
 </classes>
-<designrules name="default *">
+<designrules name="fab *">
 <description language="de">&lt;b&gt;EAGLE Design Rules&lt;/b&gt;
 &lt;p&gt;
 Die Standard-Design-Rules sind so gewählt, dass sie für 
@@ -596,28 +596,28 @@ design rules under a new name.</description>
 <param name="layerSetup" value="(1*16)"/>
 <param name="mtCopper" value="0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm"/>
 <param name="mtIsolate" value="1.5mm 0.15mm 0.2mm 0.15mm 0.2mm 0.15mm 0.2mm 0.15mm 0.2mm 0.15mm 0.2mm 0.15mm 0.2mm 0.15mm 0.2mm"/>
-<param name="mdWireWire" value="17mil"/>
-<param name="mdWirePad" value="17mil"/>
-<param name="mdWireVia" value="17mil"/>
-<param name="mdPadPad" value="17mil"/>
-<param name="mdPadVia" value="17mil"/>
-<param name="mdViaVia" value="17mil"/>
+<param name="mdWireWire" value="16mil"/>
+<param name="mdWirePad" value="16mil"/>
+<param name="mdWireVia" value="16mil"/>
+<param name="mdPadPad" value="16mil"/>
+<param name="mdPadVia" value="16mil"/>
+<param name="mdViaVia" value="16mil"/>
 <param name="mdSmdPad" value="6mil"/>
 <param name="mdSmdVia" value="6mil"/>
 <param name="mdSmdSmd" value="6mil"/>
 <param name="mdViaViaSameLayer" value="6mil"/>
 <param name="mnLayersViaInSmd" value="2"/>
-<param name="mdCopperDimension" value="17mil"/>
-<param name="mdDrill" value="6mil"/>
+<param name="mdCopperDimension" value="16mil"/>
+<param name="mdDrill" value="16mil"/>
 <param name="mdSmdStop" value="0mil"/>
-<param name="msWidth" value="8mil"/>
-<param name="msDrill" value="33mil"/>
+<param name="msWidth" value="10mil"/>
+<param name="msDrill" value="32mil"/>
 <param name="msMicroVia" value="9.99mm"/>
 <param name="msBlindViaRatio" value="0.5"/>
 <param name="rvPadTop" value="0.25"/>
 <param name="rvPadInner" value="0.25"/>
 <param name="rvPadBottom" value="0.25"/>
-<param name="rvViaOuter" value="0.25"/>
+<param name="rvViaOuter" value="0.35"/>
 <param name="rvViaInner" value="0.25"/>
 <param name="rvMicroViaOuter" value="0.25"/>
 <param name="rvMicroViaInner" value="0.25"/>
@@ -646,11 +646,11 @@ design rules under a new name.</description>
 <param name="mlMaxStopFrame" value="4mil"/>
 <param name="mlMinCreamFrame" value="0mil"/>
 <param name="mlMaxCreamFrame" value="0mil"/>
-<param name="mlViaStopLimit" value="35mil"/>
+<param name="mlViaStopLimit" value="0mil"/>
 <param name="srRoundness" value="0"/>
 <param name="srMinRoundness" value="0mil"/>
 <param name="srMaxRoundness" value="0mil"/>
-<param name="slThermalIsolate" value="17mil"/>
+<param name="slThermalIsolate" value="16mil"/>
 <param name="slThermalsForVias" value="0"/>
 <param name="dpMaxLengthDifference" value="10mm"/>
 <param name="dpGapFactor" value="2.5"/>
@@ -960,8 +960,8 @@ design rules under a new name.</description>
 <wire x1="33.94" y1="37.41434375" x2="33.37094375" y2="37.9834" width="0.254" layer="1"/>
 <wire x1="33.94" y1="37.41434375" x2="33.94" y2="36.05" width="0.254" layer="1"/>
 <wire x1="33.94" y1="36.05" x2="33.94" y2="35.76" width="0.254" layer="1"/>
-<wire x1="33.94" y1="35.76" x2="35.2" y2="34.5" width="0.254" layer="1"/>
-<via x="35.2" y="34.5" extent="1-16" drill="0.8382"/>
+<wire x1="33.94" y1="35.76" x2="35.15" y2="34.55" width="0.254" layer="1"/>
+<via x="35.15" y="34.55" extent="1-16" drill="0.8382"/>
 <contactref element="S1" pad="P$2"/>
 <wire x1="36.7" y1="21.5" x2="35.4" y2="21.5" width="0.2032" layer="1"/>
 <polygon width="0.0762" layer="1" thermals="no" rank="6">
@@ -1230,10 +1230,10 @@ design rules under a new name.</description>
 <contactref element="J2" pad="2"/>
 <wire x1="31.6063" y1="7.5937" x2="31.5126" y2="7.5" width="0.3048" layer="1"/>
 <wire x1="31.5126" y1="7.5" x2="31.5" y2="7.5" width="0.3048" layer="1"/>
-<wire x1="31.93103125" y1="1.2158" x2="32.9842" y2="2.26896875" width="0.3048" layer="1"/>
+<wire x1="32.03103125" y1="1.2158" x2="32.9842" y2="2.16896875" width="0.3048" layer="1"/>
 <wire x1="32.9842" y1="6.2158" x2="31.6063" y2="7.5937" width="0.3048" layer="1"/>
-<wire x1="24.2" y1="1.2158" x2="31.93103125" y2="1.2158" width="0.3048" layer="1"/>
-<wire x1="32.9842" y1="2.26896875" x2="32.9842" y2="6.2158" width="0.3048" layer="1"/>
+<wire x1="24.2" y1="1.2158" x2="32.03103125" y2="1.2158" width="0.3048" layer="1"/>
+<wire x1="32.9842" y1="2.16896875" x2="32.9842" y2="6.2158" width="0.3048" layer="1"/>
 <contactref element="R11" pad="1"/>
 <contactref element="R11" pad="2"/>
 <wire x1="35" y1="18.9" x2="34.9034" y2="18.9966" width="0.2032" layer="1"/>