The Nuts and Bolts (and screws) of Transformation Constraints

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Two Ways to Create a NUT AND BOLT Animation

0:00​ - Introduction
0:28​ - Enabling BoltFactory for Blender
0:47​ - Adding a nut and bolt
1:54​ - Adjusting nut and bolt sizes
2:42​ - Using Keyframes to animate nut movement and spin
3:19​ - Setting Keyframes
5:40​ - Using Constraints to animate nut and bolt movement
6:00​ - Adding a transformation constraint
6:15​ - Linking the nut and bolt in the constraint
6:34​ - Finding and using the movement link limits
7:30​ - Adding rotation to the nut
8:17​ - Setting a movement limit for the bolt

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Modeling Screws and Bolts in Minutes for Beginners