Question

mu: support structures
use the information below to answer the question.
with material jetting (mj), there is the capability of having two materials printed at the same time - one being the build material, the other being a dissolvable support material. it shares some similarities to the fused filament fabrication process that utilizes a dual print head.
print results
the print heads for the build material and the support structure can not concurrently. this would be detected by the slicing software to make sure they dont cross. the slicing software determines if there would be a conflict over the build plate. it might progressively obstruct printing with one head and continue with the other to ensure that they do not run into each other in the printing process.
structure form
another aspect of material jetting (mj) is the form the structure takes. it is one solid form coming together in a rounded fashion, which would use less material such as that used by fff or sla.
removing the support structure
the support structures are dissolvable. the item is put in an ultrasonic bath to help loosen and break down the support structure. the ultrasonic bath has a high amount of energy that can break down the structure of parts in less opportunity for damaging the surface. there is minimal surface imperfections. it has a high - detail finish, which makes it a good fit for master - molding. it can also be post - processed or used as mj out - of - the - box if used external enclosures through an open api.
the support structure for material jetting (mj) is what?
magnetic
tree - shaped
recyclable
dissolvable

Explanation:

The text mentions that with Material Jetting (MJ), one material is the build material and the other is a dissolvable support material. Also, it states that the support structures are dissolvable.

Answer:

dissolvable