Making the siege engines bridge upright

Before the animation could be started all the pieces needed to be organised and put in place. Firstly the image below shows the siege engine with its top half in the upright position. The original model of the siege engine had the bridge down (this would have been fine for the end of the animation but the bridge has to be upright to deploy on the wall later). In order to pivot the bridge I grouped the top half of the animation together and then the bottom half of the animation together. Then I moved the pivot point for the bridge to the correct position and then rotated the top half of the model. After a bit of tweaking to the position of the top half, the bridge was in the correct position and was ready to use in the animation.