Machining a large crankshaft - GIF

Machining a large crankshaft.

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Previously:

https://www.homemadetools.net/forum/...1800#post94762
https://www.homemadetools.net/forum/...836#post179135
https://www.homemadetools.net/forum/...655#post182570
https://www.homemadetools.net/forum/...562#post174092
https://www.homemadetools.net/forum/...565#post166765
https://www.homemadetools.net/forum/...1800#post94762
https://www.homemadetools.net/forum/...735#post155884

Any ideas what an engine that has that size crankshaft would be used for?

that's not a crankshaft.
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This is a Crankshaft
Attachment 40255