Design of the Implant Grid

I designed the scaffold as a parametric CAD model to control unit-cell geometry, pore size, and strut width while keeping bridging feasible during MEX.

  • Design intent: I defined a base lattice (e.g., orthogonal/diagonal) with parameters for unit-cell size, strut width, layer height multiplier, and bridge span. Global dimensions and edge constraints ensured consistent boundaries for metrology.

  • Parametric control: I used driven dimensions and equations to sweep pore size/strut width while preserving printability (min overhangs, filleted nodes to reduce stress/ooze).

  • Manufacturing constraints: I set tolerances to accommodate bead swell and thermal shrinkage and aligned feature orientation to minimize unsupported spans.

  • Export-to-print: I exported watertight geometry (STL/3MF), verified facet quality, and paired the CAD parameters with slicer settings (layer height, raster width, infill path) to link design and process.