diff --git a/.gitmodules b/.gitmodules
index 8e4d20d..b81a145 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,6 @@
 [submodule "scad/common"]
 	path = scad/common
 	url = https://git.sixteenmillimeter.com/modules/common.git
+[submodule "scad/sprocketed_roller"]
+	path = scad/sprocketed_roller
+	url = https://git.sixteenmillimeter.com/modules/sprocketed_roller.git
diff --git a/scad/sprocketed_roller b/scad/sprocketed_roller
new file mode 160000
index 0000000..e053ac5
--- /dev/null
+++ b/scad/sprocketed_roller
@@ -0,0 +1 @@
+Subproject commit e053ac5a2aa428248d6041a88e304c25df656bc0