diff --git a/.gitignore b/.gitignore
index 7c063f0..7b32370 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,6 +2,7 @@
 .~*
 *.swp
 dxf/orders
+dxf/old
 *.skb
 
 
diff --git a/README.md b/README.md
index 809cd18..c6c1b19 100644
--- a/README.md
+++ b/README.md
@@ -41,6 +41,9 @@ In addition to 4 Morphs, you need the wood pieces, 2 USB hubs, the 10.1" touchsc
 
 <h2>Building a complete and standalone Space Palette Pro</h2>
 <p>
+NOTE: If you plan on building a complete standalone Space Palette Pro, please send email to me@timthompson.com before starting,
+since there have been major changes to the design of the base.
+<p>
 Here are the instructions for <a href="doc/building.md">building a complete and standalone Space Palette Pro</a> from scratch.
 The cost of all the <a href="doc/parts.pdf">raw materials</a> for an uncompromised and complete instrument
 including the computer is around $8K.
@@ -56,4 +59,4 @@ paying someone else to CNC all the wood.
 <a href="doc/README.md">Other documentation and important links can be found here.</a>
 <p>
 <p>
-Any questions, email <a href="mailto:me@timthompson.com">me@timthompson.com</a>
\ No newline at end of file
+Any questions, email <a href="mailto:me@timthompson.com">me@timthompson.com</a>
diff --git a/doc/building_base.md b/doc/building_base.md
index 67ca41f..42e6080 100644
--- a/doc/building_base.md
+++ b/doc/building_base.md
@@ -1,4 +1,8 @@
 <h1>Building the Base of the Space Palette Pro</h1>
+<p>
+NOTE: the base has been redesigned to be more modular, and these instructions are no longer valid.
+Email me@timthompson.com for details about the newer base design.
+<p>
 These are the steps to building the base,
 assuming you've collected all the necessary parts.
 <p><br>
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diff --git a/dxf/SPP_basebox_side.dxf b/dxf/SPP_BaseBack_insert.dxf
similarity index 61%
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rename to dxf/SPP_BaseBack_insert.dxf
index 560fb68..503ff6c 100644
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diff --git a/dxf/SPP_BaseHeadphones.dxf b/dxf/SPP_BaseHeadphones_small.dxf
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diff --git a/dxf/SPP_BaseSpeaker.dxf b/dxf/SPP_BaseSpeaker.dxf
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diff --git a/dxf/SPP_Layer7_back.dxf b/dxf/SPP_Layer7_back.dxf
index 7aed985..853bcd3 100644
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diff --git a/dxf/SPP_basebox_bottom.dxf b/dxf/SPP_basebox_bottom.dxf
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diff --git a/dxf/SPP_basebox_top.dxf b/dxf/SPP_basebox_top.dxf
deleted file mode 100644
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diff --git a/dxf/SPP_baseboxes_large_back.dxf b/dxf/SPP_baseboxes_large_back.dxf
index 85c357e..a5ca1ad 100644
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diff --git a/dxf/SPP_BaseBackShipping.dxf b/dxf/SPP_baseboxes_medium_back.dxf
similarity index 60%
rename from dxf/SPP_BaseBackShipping.dxf
rename to dxf/SPP_baseboxes_medium_back.dxf
index b3adabe..f908f5e 100644
--- a/dxf/SPP_BaseBackShipping.dxf
+++ b/dxf/SPP_baseboxes_medium_back.dxf
@@ -255,7 +255,7 @@ SECTION
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@@ -263,193 +263,57 @@ AcDbEntity
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diff --git a/dxf/SPP_baseboxes_medium_outerback.dxf b/dxf/SPP_baseboxes_medium_outerback.dxf
new file mode 100644
index 0000000..6864441
--- /dev/null
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diff --git a/dxf/SPP_baseboxes_medium_outerinsert.dxf b/dxf/SPP_baseboxes_medium_outerinsert.dxf
new file mode 100644
index 0000000..582b2e9
--- /dev/null
+++ b/dxf/SPP_baseboxes_medium_outerinsert.dxf
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diff --git a/dxf/SPP_basebox_frontback.dxf b/dxf/SPP_baseboxes_medium_side.dxf
similarity index 78%
rename from dxf/SPP_basebox_frontback.dxf
rename to dxf/SPP_baseboxes_medium_side.dxf
index 2cb3531..df8314b 100644
--- a/dxf/SPP_basebox_frontback.dxf
+++ b/dxf/SPP_baseboxes_medium_side.dxf
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@@ -289,13 +289,13 @@ AcDbEntity
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@@ -303,41 +303,9 @@ AcDbCircle
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diff --git a/dxf/SPP_baseboxes_small_back.dxf b/dxf/SPP_baseboxes_small_back.dxf
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diff --git a/dxf/SPP_baseboxes_small_side.dxf b/dxf/SPP_baseboxes_small_side.dxf
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diff --git a/dxf/SPP_baseboxes_small_top.dxf b/dxf/SPP_baseboxes_small_top.dxf
index fef45d3..a837310 100644
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