Post all the time lapse videos of failed prints here, often there are some interesting patterns and behaviours to observe once thing diverge from the plan..
Here is a video of what happens if a tall slender object gets detached from the platform: https://www.youtube.com/watch?v=zyZuxMf6R4A
Looks coool :)
That were arrows?
It was a model of the Stratos II rocket, currently European altitude record for armature rockets. Build by DARE.