Chariot-style double ride-on floor sander.
Fullsize image: https://diqn32j8nouaz.cloudfront.net...r_fullsize.jpg
https://diqn32j8nouaz.cloudfront.net...elt_sander.jpg
Previously:
https://www.homemadetools.net/forum/...309#post121825
https://www.homemadetools.net/forum/...2506#post76487
https://www.homemadetools.net/forum/...545#post122996
