This is a simple object to assist in finding real-world offsets between nozzles on a multiple-toolhead machine. We can usually know the designed offset, but (especially with hacked things) the precise distance tends to vary.Slice your object up for dualstrusion in ReplicatorG, and then modify the offset values for each nozzle. Print a few at each increment, to help reduce problems with inconstancy (if you have them). Change the offset, repeat!