Self-erecting tower crane - GIF

Self-erecting tower crane.

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Previously:

https://www.homemadetools.net/forum/...610#post189829
https://www.homemadetools.net/forum/...162#post188019
https://www.homemadetools.net/forum/...104#post180158
https://www.homemadetools.net/forum/...024#post115213
https://www.homemadetools.net/forum/...369#post158254

♬ ♪ More Than Meets The Eye.

I lost count of how many separate functions were involved to lower and pack up that crane.