diff --git a/testcases/triangle-odd.gcode b/testcases/triangle-odd.gcode
new file mode 100644
index 0000000..d3178cc
--- /dev/null
+++ b/testcases/triangle-odd.gcode
@@ -0,0 +1,7 @@
+(This demonstrates an odd speed)
+G21
+G90
+G1 X5 F300
+G1 Y9
+G1 X0 Y0
+M2