*DDM!
r1, r2, [r3]
r1: r*8: top z coordinate of substrate
r2: r*8: bottom z coordinate of substrate
r3: r*8: time offset to activate layers, in seconds. Default radius/velocity/4
This DDM option switches elements from inactive to quiet on a layer by layer basis. The time of layer activation is set to the start of deposition of each layer minus r3. Then, Local Simulation searches which elements belong to each layer based on their z coordinate. The elements are activated when contacted by the heat source.
For auto-generated meshes, this card also defines the substrate or build plate thickness. r1 should correspond to the bottom coordinate of the .stl file or the heat source path and r2 defines the thickness of the auto generated substrate.