The stencil can move in the X-, Y-, and Z-axes to line up with a PCB held with 3D-printed standoffs on a bed below the top frame. The bed itself rotates slightly to overcome any skew in alignment ...
With the low-cost PCB fabrication services available ... fused deposition modeling (FDM) 3D printer throughout all of its phases, from creating a stencil based on the exported board design ...