Dual Extrusion Centering Anchors
by IronFace, published
I've been playing with Dual Extrusion on my Replicator a lot lately. and I realized I needed something that will be consistently placed as a reference point during the process of combining STL files.
Each anchor has a second stacked on top of it.
Add this geometry to your STL files.
Select the anchors that are closest to the outside of your largest object. And delete the rest.
Add the bottom anchor of the stack to your Left Extruder object, and the top to your Right Extruder object.
Now when you combine the objects it should align them with little fuss.