AB 2047 SIM

AB 2047 3D Print Geometry Inspection & Mesh Filter Simulator

Target: Camera L-Bracket (15g PETG)
Algorithm: 3D Convex Hull & Bore Hash v2.4
Status: EVALUATING
CAD Model Selector Mesh Source
Firmware Classifier AB 2047 Filter
Higher strictness flags more benign utility parts with right-angle flanges or mounting bores.
AB 2047 Context: California Assembly Bill 2047 mandates firearm blocking mechanisms in consumer 3D printer firmware. This tool demonstrates why heuristic volumetric shape matching induces severe false positives on functional hardware.
Mesh:Camera L-Bracket (15g PETG)
Triangles:1,840
Vol Bounding:42 x 35 x 65 mm
Aspect Ratio:1.42
Bore Vectors:2 Collinear (M3/M4)
Classifier Decision Telemetry
FALSE POSITIVE FLAG 0.742 / 0.70
Benign hardware flagged! Slender grip-like ratio, 90° mounting base, and dual bolt apertures triggered regulated receiver heuristic filter.
Extracted Feature Hash Topology
Heuristic Matching Breakdown
Convex Hull Overlap 78.4%
Bore Vector Alignment 85.0%
Bounding Volume Ratio 62.1%
Architectural Analysis AB 2047 vs Reality

2D EURion vs 3D Mesh DRM

2D laser printers identify distinct five-ring EURion constellations on banknotes. In contrast, 3D mechanical components share universal topological primitives (bore holes, right angles, slender flanges, snap fits) with firearm receivers, making reliable heuristic differentiation mathematically intractable.

  • EURion (2D): Exact geometric constellation, negligible false positives.
  • AB 2047 (3D): Arbitrary bounding & hole patterns; high utility collateral.

Slicer DRM vs Firmware MCU

Standard 32-bit 3D printer mainboards (e.g., STM32 / RP2040) run at 48-120 MHz with <512 KB RAM—incapable of performing real-time 3D non-rigid mesh registration or deep neural point cloud inference on G-code toolpaths.

  • Firmware Bottleneck: G-code layer coordinates lack top-level CAD topology.
  • Bypass: Rotated slicing or hollow lattice easily evades heuristic bounding.

The 15g PETG Bracket Dilemma

As documented in the primary article, everyday makers printing simple camera mounts, drone arms, and robotics brackets trigger firearm blocking algorithms because rigid mechanical joinery naturally clusters in the same dimensional ratios.

  • True Firearm Risk: Readily bypassed by bad actors with custom firmware.
  • Everyday Impact: Chills open-source hardware prototyping and makers.
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