diff --git a/.gitignore b/.gitignore
index d971441..fa4e8b6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 *.stl
+*.deps
 *.gcode
 *.gif
 *.png
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..694014b
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,7 @@
+# Explicit wildcard expansion suppresses errors when no files are found.
+include $(wildcard *.deps)
+
+%.stl: %.scad
+	openscad -o $@ -m make -d $*.deps $<
+
+all: frame_top.stl frame_motor.stl