Print object separately from certain layer

[ehow]

Hi,


I wonder if there's a way to tell the extruder to print object A from layer n, and then print object B from layer n? (objects are illustrated as follow) The distance between A and B is enough to accommodate the size of extruder, and the height of A will not interfere with X axis.

two tower illustration (1).jpg

Normally I wouldn't want to do this, but I'm printing this with TPU which generate a lot of strings that I'm not good at post processing. I understand this is perfectly normal for TPU printing, just would like to reach out to larger audience for tips.

P.S.: Originally I had hope on "non planar slicing", the degree from tip of A to layer n seems to be too steep for that.