Milling machine sky crane. By mrpete222.
21:12 video:
https://www.youtube.com/watch?v=hkpSGXoP1F4
14:24 video:
https://www.youtube.com/watch?v=g9P9TI73Qus
39:02 video:
https://www.youtube.com/watch?v=5tOq9bEXnDI
18:24 video:
https://www.youtube.com/watch?v=_3XzfI1RQyE
Previously:
20 plans for homemade shop cranes, hoists, and winches
https://www.homemadetools.net/forum/...440#post181790
https://www.homemadetools.net/forum/...329#post181247
https://www.homemadetools.net/forum/...735#post178736
https://www.homemadetools.net/forum/...721#post170736
https://www.homemadetools.net/forum/...112#post157486