diff --git a/dat/Limbs1.m b/dat/Limbs1.m
new file mode 100644
index 0000000..f1303f0
--- /dev/null
+++ b/dat/Limbs1.m
@@ -0,0 +1,16 @@
+% setup vars
+t = [0, 1, 2, 3, 4];
+p = [0, -2, -5, -2, 0];
+
+% generate graph lines
+querypts = 0:0.001:4;
+interpts = interp1(t, p, querypts, 'spline')';
+
+ret_LHip  = [querypts', interpts];
+ret_RHip  = [querypts', interpts];
+ret_LKnee = [querypts', interpts];
+ret_RKnee = [querypts', interpts];
+
+% create graph
+%figure
+%plot(t, p,'o', querypts, interpts, ':.');
diff --git a/slprj/sim/varcache/t1a/checksumOfCache.mat b/slprj/sim/varcache/t1a/checksumOfCache.mat
index 2a680a1..2ef370d 100644
Binary files a/slprj/sim/varcache/t1a/checksumOfCache.mat and b/slprj/sim/varcache/t1a/checksumOfCache.mat differ
diff --git a/slprj/sim/varcache/t1a/tmwinternal/simulink_cache.xml b/slprj/sim/varcache/t1a/tmwinternal/simulink_cache.xml
index 081fd1e..0adf630 100644
--- a/slprj/sim/varcache/t1a/tmwinternal/simulink_cache.xml
+++ b/slprj/sim/varcache/t1a/tmwinternal/simulink_cache.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <MF0 version="1.1" packageUris="http://schema.mathworks.com/mf0/SlCache/1.0">
-  <slcache.FileAttributes type="slcache.FileAttributes" uuid="910f3108-d533-471a-a131-16dc57703e60">
-    <checksum>j3HpQct9ymkg/g59S2O+GrR+e8iwjmATeJDi4XofvX0d94OIhziPgrMuBEs6AemcgO2bvY3GjPh6vPlmJ5NN9A==</checksum>
+  <slcache.FileAttributes type="slcache.FileAttributes" uuid="a5bbb415-5bff-4703-9254-97a5cbd66a18">
+    <checksum>FwEqJd/qtELI+ebGV50MX8IPnLf54deP5tOPEcahTDkJksEpTRjRGMGe30Amf0QX/Cc8MxZf6a6AbQgnrwB8ZA==</checksum>
   </slcache.FileAttributes>
 </MF0>
\ No newline at end of file
diff --git a/slprj/sim/varcache/t1a/varInfo.mat b/slprj/sim/varcache/t1a/varInfo.mat
index 8e874d0..c77e60d 100644
Binary files a/slprj/sim/varcache/t1a/varInfo.mat and b/slprj/sim/varcache/t1a/varInfo.mat differ
diff --git a/t1a.slx b/t1a.slx
index a5c6f4e..20803e6 100644
Binary files a/t1a.slx and b/t1a.slx differ
diff --git a/t1a.slxc b/t1a.slxc
index f5d7679..e910d88 100644
Binary files a/t1a.slxc and b/t1a.slxc differ