Roomba Virtual Wall Cone for Halo Mode
thingiverse
This cone is the same size as the one in the official Virtual Wall, and hypothetically it could be coated with something metallic and placed on top of an IR light to emulate the original's Halo Mode feature. Note: I haven't tried this myself, including trying to print it. The idea is from [here](https://gregthielen.me/blogstuff/2017/06/27/roomba-virtual-wall/#:~:text=halo%20mode) (scroll to last section Wrapping it up). If you want to build such a wall, there are [a few YouTube videos](https://www.youtube.com/results?search_query=DIY+Roomba+Virtual+Wall) on the subject.
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