For Archicad 19 | Eptar Reinforcement

I selected my twisted shell. Instead of drawing each bar manually, I typed a rule: “Cover = 4cm. Diameter = 12mm. Spacing = 15cm. Direction = Follow Principal Stress.”

ArchiCAD 19 groaned. The progress bar stalled at 67% for ten seconds. I thought it crashed. eptar reinforcement for archicad 19

In vanilla AC19, that meant deleting the shell, rebuilding it, and crying over lost rebar. With Eptar? I simply dragged the shell’s node. The geometry updated, and Eptar’s “Smart Heal” engine kicked in. Within 12 seconds, the reinforcement recalculated—the stirrups rotated, the longitudinal bars shortened on one side, lengthened on the other. The cover remained intact. I selected my twisted shell

That’s when an old mentor whispered a name: . Spacing = 15cm

The structural engineer, a crusty guy named Roberto who still used AutoCAD R14, stared at my screen. “That’s… alive,” he whispered.

I was designing a biomorphic museum entrance—a sweeping, double-curved concrete arch that twisted 15 degrees as it rose. In ArchiCAD 19’s native environment, the shell tool was powerful but flimsy. Every time I added a new window or a heavy stone cladding, the model either corrupted or the reinforcement disappeared into a spaghetti of generic rebars that my structural engineer refused to sign off on.

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