three jaw chuck v2.0

I didn't know...
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... if someone has already print my original version and since the spiral block is the only part that is re-used, I decided to make it a V 2.0 now..

Concerning to my original version, the spiral got deeper as well as the teeth of the claws.
I also made the claws longer so that they won't jam if you push them together. Therefore, I enlarged the side holes of the turntable, so the claws can run out of it. This makes the gripping area much wider. They're also f