diff --git a/robots/b1_description/xacro/const.xacro b/robots/b1_description/xacro/const.xacro
index c8f52e3..5de2a43 100644
--- a/robots/b1_description/xacro/const.xacro
+++ b/robots/b1_description/xacro/const.xacro
@@ -38,65 +38,98 @@
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