Using tree support for a car model with a shallow curved flat bottom which is abut 20+ layers above plate.
When printing supprt the last layer shows small random “Bumps” which end up hooking into the first oblect print layer.
This cuases the support to come off very hard and the bumps are visible in the object surface after supprot removal.
I have added the stages of print as an example. the object bottom is from the a first failure print where the last tree support layer was grey material.
![Tree Support building|375x500]
(upload://3XkcuWNNybTjoZWvDgf66CjvqdM.jpeg)
What produces these “Bumps” and rather rough first object layer?
Rene