How do I move a model with Tween Service?

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Tweening models has always been a bit of a headache, but I recommend you follow this tutorial, it helped me tons before.

In a nutshell, you weld everything to the PrimaryPart (which is anchored) and tween that.

Introduction to Tweening Models

Note (06/30/2021): Due to the release of the new pivot APIs and the thankful deprecation of SetPrimaryPartCFrame, the legacy method of CFraming is now also appropriate and you do not necessarily need to use this welding method. Do note that the pivot CFrame is different from the PrimaryPart CFrame though, so you will have to account for that when writing your proxy objects. Contents Introduction Understanding Tweening Concept of Tweening Models Rigging Your Model 4.1. Setting Up the Root 4…