Copper forming.
<video controls autoplay loop>
<source src="https://diqn32j8nouaz.cloudfront.net/copper_spin_forming.mp4" type="video/mp4">
Your browser does not support the video tag.
</video>
Previously:
https://www.homemadetools.net/forum/...670#post108031
https://www.homemadetools.net/forum/...211#post130552
