I never thought it was such a simple machine inside! I mean by simple = durable, not flimsy Chinesium and irreplaceable cheap circuits. I have a very similar Ryobi sander but without speed adjustment but from the same series. I am sure mine is even simpler inside. I wonder if the folks at Rypbi knew that the new EU laws which is forcing the manufacturers to make appliances more easily repairable (for good). Thanks for the vid and I can now feel more confident about the tool that can be used for years to come.