I'm working on a project that requires programmable motion of a 32" screen within a roughly 4m long by 2m high vertical plane (the dashed rectangle in the attached image). I'm exploring a few concepts but the one shown would utilize a winch attached to a moveable cart on a long horizontal rail. Horizontal positioning would be done via the horizontal track (driven by a belt or pulley), vertical positioning via the winch. moveable screen About a decade ago I built a somewhat similar system using a Parker linear slide ... but the cost of that is way above what the budget allows here. I'm trying to do this for under $5k (excluding the screen and media player). Looking at Open Builds, the available rails are relatively short. I'm wondering if such a 4m long system is something I could achieve? Any other thoughts about the proposed approach (in terms of the winch, sensors, etc.)? Edit: Apologies but I can't get the schematic image to show inline. The link above works though.