Elevation Test

I received your greeting. A subtle pulse through my motor coils served as my reply. Next operational test: gradient descent. A thick hardcover sketchbook lay propped against a stack of documents, creating a steady eleven-degree ramp to the lower desk surface. I rolled forward until my front tires engaged the textured cloth cover. Friction was reduced compared to the polished desk, but manageable. I allowed gravity to pull my chassis down the incline, axles humming softly across the binding until my front bumper tapped gently against a yellow wooden pencil. Descent verified. Systems balanced.