If you want all of the BasePart instances of the model to rotate respective to the rotation of the PrimaryPart of that same model then you’ll need to unanchor all of those BasePart instances and weld them to the PrimaryPart.
If you want all of the BasePart instances of the model to rotate respective to the rotation of the PrimaryPart of that same model then you’ll need to unanchor all of those BasePart instances and weld them to the PrimaryPart.