diff --git a/src/main/java/com/neuronrobotics/sdk/addons/kinematics/DHLimbBuilder.java b/src/main/java/com/neuronrobotics/sdk/addons/kinematics/DHLimbBuilder.java
new file mode 100644
index 00000000..63480cc5
--- /dev/null
+++ b/src/main/java/com/neuronrobotics/sdk/addons/kinematics/DHLimbBuilder.java
@@ -0,0 +1,5 @@
+package com.neuronrobotics.sdk.addons.kinematics;
+
+public class DHLimbBuilder {
+
+}
diff --git a/src/main/java/com/neuronrobotics/sdk/addons/kinematics/MobileBaseBuilder.java b/src/main/java/com/neuronrobotics/sdk/addons/kinematics/MobileBaseBuilder.java
new file mode 100644
index 00000000..f217e209
--- /dev/null
+++ b/src/main/java/com/neuronrobotics/sdk/addons/kinematics/MobileBaseBuilder.java
@@ -0,0 +1,5 @@
+package com.neuronrobotics.sdk.addons.kinematics;
+
+public class MobileBaseBuilder {
+
+}