Don ' t rush the main quest . <| sep |> i think its a very interesting concept for sure . the way i can think of it at this moment is a triangle shaped belt path with a pulley on a spring mechanism that keeps tension on the belt as the head moves around . but it would need a log of travel to take up the difference . i do like the servo idea as well . <| sep |>. but why male models ? <| sep |> Hello Internet . It ' s these two educational YouTubers having a conversation about whatever . It doesn ' t have a high production value , but what they talk about , combined with their contrasting personalities and running jokes makes it by far my favorite . Recommendation Listen from the very beginning , it ' ll be worth it to get all the references and hear the history of the podcast .