This edition adds shell expansion drawings, automated stair generation and live drawing update to Steeler; automated gasket placement and clash-detection reports to Piping; move-leader and spool-number tags to Drafting; downflooding, damaged stability and limiting KG to HydroStab; rigging, window, equipment-number and rudder calculations to Scantling; and live camera tracking to Notilus Dude.

Run the new nsUpdateDrawings command and every structural workshop drawing is refreshed against the current 3D model — sections, part sheets, dimensioned views. Move a frame, add a stiffener, revise a bracket, and the sheets follow on the next update pass.

Run nsAddShellExpansion and the classical shell expansion is drawn in seconds — every shell plate developed from the NURBS hull surface, straight into the production drawing set.

Use nsAddStair to define stairs between any two decks — tread depth, riser height, stair width, stringer profile. Cutting files and bend marks are generated automatically along with the model. Watch demo →

Move parts inside cutting sheets easily — see the exact position they will fit before releasing. Optimise material use, slot remnants back into the layout, tweak the nesting after the fact — every move tracked on the sheet database and reflected in the remnant register.

Edit any frame's parameters after it has been generated — type nsEditPart, select the frame, and change spacing, section, offset or end conditions from a single dialog. No need to delete and rebuild.

The Notilus toolbar has been redrawn with a new icon set — cleaner glyphs, consistent visual language across every command, and better readability at both small and large Rhino UI scales.

Gaskets are now placed automatically between parts at every flanged connection — spool-to-spool, valve-to-pipe, pipe-to-equipment. Thickness, material, DN and rating inherited from the parent flange, and every gasket listed in the BOM alongside its parent components.

Run clash detection across piping runs vs. structure, HVAC ducts, cable trays and mechanical equipment — and export the result as a full report so every clash is caught before it reaches production. Watch demo →

New nsMoveLeader command — move leaders around the sheet easily, keeping their properties (arrow style, text alignment, link to the referenced part).

Piping general-arrangement drawings now carry spool numbers alongside each pipe run, matching the spool sheet package — one-click cross-reference between the piping GA and the individual spool drawings for the shopfloor.

Weight and weight centroids of items can now be calculated for each stability run directly inside Rhino — fully integrated with Notilus Weight. Change an item in Weight, and every load case is recomputed on the next open.

Define and check downflooding points on the model — vents, doors, hatches, non-watertight openings — and read the angle of downflooding (θ_d) at which the first opening immerses. Required for intact stability compliance per IMO Intact Stability Code and class rules.

Define compartments and damage cases directly in Rhino — one- and multi-compartment scenarios — and see the residual GZ curve after flooding instantly. Compliance against SOLAS Ch. II-1, HSC Code and class-society damage-stability criteria, pass/fail per criterion.

Rigging scantlings for sailing craft per ISO 12215 — standing rigging wire diameters, chainplate loads, mast section modulus and compression checks. Design loads derived from sail area, heeling moment and vessel particulars.

Structural window and portlight sizing — hull side, superstructure and deckhouse windows checked against design pressures. Required glass thickness per rule, per window, with material type (tempered, laminated) accounted for.

One-click generation of the window arrangement drawing — every window's location, dimensions, glass thickness, material and rule reference laid out on a single sheet ready for class submission.

Computes the classical class-society Equipment Number (EN) per IACS UR A1 and DNV rules — the dimensionless parameter derived from displacement, freeboard and lateral profile that drives anchor mass, chain diameter and length, and mooring and towing line breaking loads.

Full rudder scantling — rudder force, rudder stock diameter, bearing loads and rudder blade plating per ISO 12215 (sailing craft) and class rules (DNV-RU-HSLC Pt.3 Ch.4 for high-speed craft, similar rule sets for other classes).

Freeing port sizing per RINA RES31 — required freeing area per side calculated from bulwark length and freeboard, checked against openings on the deck. Compliance with the rule's minimum area and distribution requirements for effective deck drainage.

The poseable human figure now supports live camera tracking — the Rhino perspective view follows the figure's head and eye position as it moves through the model. Walk through the vessel as the crew would, verify sightlines from the helm, check whether the engineer can see the gauge from where they're standing. Ergonomics validation, in real time. See on McNeel Discourse →