Bucket wheel excavator mining coal.
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Previously:
https://www.homemadetools.net/forum/...6203#post83244
https://www.homemadetools.net/forum/...499#post173804
https://www.homemadetools.net/forum/...1230#post93214
https://www.homemadetools.net/forum/...094#post138101
https://www.homemadetools.net/forum/...505#post170065
