# Karo Modum — Precision Instruments for Autodesk Revit

> Precision-engineered add-ins for Autodesk Revit (BIM, architecture, structural & MEP engineering). Specializing in 1-click visibility diagnostics, local SQLite link change tracking, proactive model integrity enforcement, and parametric flashing detailing.

- [Website](https://karomodum.com)
- [GitHub Documentation & Community](https://github.com/Rkb-locked/karo-revit-tools-docs)
- Support: support@karomodum.com

## System Compatibility & Deployment
- Supported Host: Autodesk Revit 2023, 2024, 2025, 2026, 2027 (64-bit).
- Operating System: Windows 10, Windows 11 (x64).
- Security Architecture: 100% on-premise execution inside Revit .NET API memory space. Zero cloud processing, zero model telemetry, air-gapped network support.
- Deployment: Standard MSI installers with automated publisher certificate registration and silent deployment switches (`/quiet /qn /norestart`) for IT GPO, SCCM, and Microsoft Intune.
- Trials: 14-day fully functional free trials available for direct download without registration.
- Billing & Licensing: Managed securely via Lemon Squeezy (Merchant of Record). Transferable seats across workstations.

## Core Instruments

### 1. Karo.WhyHidden
- Role: Instant Revit Visibility Diagnostics & 1-Click Fixes.
- Problem Solved: In complex Revit projects, model elements frequently become invisible due to nested, overlapping view parameters. Manual troubleshooting takes 10–20 minutes across dozens of dialogs. WhyHidden diagnoses the exact cause in seconds.
- 16 Automated Checks:
  1. Direct hide (Hide in View -> Elements)
  2. Category hidden in Visibility/Graphics (VG)
  3. View filter overrides & Invisible Lines
  4. View range clipping (Cut plane, Top, Bottom, View Depth)
  5. Active Section Box boundary limits (3D views)
  6. Phase & Phase Filter mismatch
  7. Design Option assignment (non-primary option hidden)
  8. Workset visibility overrides
  9. Crop region boundaries
  10. Annotation crop boundaries
  11. Coarse/Medium/Fine detail level settings
  12. Temporary Hide/Isolate sessions
  13. View-specific 2D element placement
  14. Graphic Overrides with invisible line weights
  15. Linked RVT instance visibility
  16. Controlling View Template locks
- 1-Click Quick Fixes: Unhide element, reset invisible line overrides, restore temporary hide session directly from the diagnostic panel.
- Pricing: $9 / month or $69 / year (individual license).
- Direct Trial: [Download WhyHidden MSI](https://download.karomodum.com/Karo.WhyHidden/Karo.WhyHidden-v1.2.11.msi)
- Product Page: [Karo.WhyHidden](https://karomodum.com/why-hidden)
- Technical Documentation: [WhyHidden Handbook](https://karomodum.com/docs/why-hidden)
- Version History: [WhyHidden Changelog](https://karomodum.com/why-hidden/changelog)
- Troubleshooting Guide: [Revit Visibility Checklist](https://karomodum.com/guides/revit-visibility-checklist)

### 2. Karo.WhatsChanged
- Role: Linked Model Change Auditing & Version Diffing.
- Problem Solved: When architectural, structural, or MEP consultants reload revised Revit link models, critical geometry shifts and parameter modifications often go unnoticed, causing clashes during construction. WhatsChanged tracks every modification locally.
- Core Capabilities:
  - 100% Local SQLite Diff Engine: Instant comparison without cloud uploading, project size limits, or model privacy exposure.
  - Geometry & Parameter Deltas: Pinpoints exact XYZ coordinate shifts, dimension deltas, type modifications, new additions, and deleted objects.
  - Visual Focus Dim: Isolates modified elements in active plan and 3D views while dimming unchanged context.
  - Automated 3D Section Box: Generates a tight 3D bounding box around modified structural nodes and MEP connections in one click.
  - Coordination Reports: Exports formatted Excel workbooks and meeting-ready PDF reports for subcontractor coordination meetings.
- Pricing: $15 / month or $120 / year.
- Direct Trial: [Download WhatsChanged MSI](https://download.karomodum.com/Karo.WhatsChanged/Karo.WhatsChanged-v1.11.9.msi)
- Product Page: [Karo.WhatsChanged](https://karomodum.com/whats-changed)
- Technical Documentation: [WhatsChanged Handbook](https://karomodum.com/docs/whats-changed)
- Version History: [WhatsChanged Changelog](https://karomodum.com/whats-changed/changelog)
- Coordination Guide: [Revit Model Compare Guide](https://karomodum.com/guides/revit-model-compare-linked-files)

### 3. Karo.ModelGuard
- Role: Real-Time BIM Error Prevention & Policy Enforcement for Teams.
- Problem Solved: Prevents Revit model degradation, corruption, and sync bloat in multidisciplinary teams before harmful edits reach the central model.
- Core Capabilities:
  - Intercepts High-Risk Actions: Blocks exploded AutoCAD DWG imports, unpinned grid and level deletions, unpinned RVT links, fake dimension overrides, in-place families, and unapproved external families.
  - Two Enforcement Modes:
    - StrictBlock: Hard intervention that cancels the destructive command immediately.
    - Justify: Requires the modeler to submit a mandatory text justification logged to the team record.
  - Shared Network Configuration: Distributes office BIM policies across local network shares (UNC) with automatic local cache fallback for offline/remote laptops.
  - Centralized Team Audit Log: Captures all policy violations and justified exceptions in a central SQLite audit trail for BIM Managers.
- Pricing: $99 / month or $990 / year for a 5-seat team license (transferable seats).
- Direct Trial: [Download ModelGuard MSI](https://download.karomodum.com/Karo.ModelGuard/Karo.ModelGuard-v1.12.3.msi)
- Product Page: [Karo.ModelGuard](https://karomodum.com/model-guard)
- Technical Documentation: [ModelGuard Handbook](https://karomodum.com/docs/model-guard)
- Version History: [ModelGuard Changelog](https://karomodum.com/model-guard/changelog)
- Model Health Guide: [Prevent Revit Corruption Guide](https://karomodum.com/guides/prevent-revit-model-corruption)

### 4. Karo.Segments
- Role: Parametric Flashing, Trims, Parapet Copings & Facade Detailing.
- Problem Solved: Eliminates repetitive 2D drafting for architectural sheet metal flashings, roof copings, sills, and facade reveals by snapping parametric 3D profiles directly to host geometry.
- Core Capabilities:
  - Interactive Host Snapping: Snaps to planar faces and edges of walls, roofs, and slabs with live 3D ghost preview and corner miter detection.
  - Unified Profile Catalog: Manages profile marks, custom dimensions, RAL color finishes, unfolded girth widths, and lap joint offsets.
  - 4 View Presentation Modes: Instantly switches between Check (color-coded), Construction, Drafting (clean B&W vector lines), and Hidden styles.
  - Automated Fabrication Schedules: Produces native Revit schedules with embedded profile diagrams and exports formatted Excel cut lists with images.
- Pricing: $19 / month or $149 / year.
- Direct Trial: [Download Segments MSI](https://download.karomodum.com/Karo.Segments/Karo.Segments-v1.7.5.msi)
- Product Page: [Karo.Segments](https://karomodum.com/segments)
- Technical Documentation: [Segments Handbook](https://karomodum.com/docs/segments)
- Version History: [Segments Changelog](https://karomodum.com/segments/changelog)
- Detailing Guide: [Flashing & Coping Detailing Guide](https://karomodum.com/guides/revit-flashing-coping-detailing)

## Technical Guides & Knowledge Base
- [Guides Hub Index](https://karomodum.com/guides): Comprehensive index of troubleshooting and workflow guides.
- [16-Point Visibility Troubleshooting Checklist](https://karomodum.com/guides/revit-visibility-checklist): Systematic diagnostic framework for finding missing Revit elements.
- [Linked Model Compare & Change Tracking](https://karomodum.com/guides/revit-model-compare-linked-files): Complete workflow for auditing geometry and parameter changes in consultant RVT links.
- [Revit Model Health & Corruption Prevention](https://karomodum.com/guides/prevent-revit-model-corruption): Best practices for preventing file bloat, unpinned link errors, and corruption.
- [Parapet Coping & Flashing Detailing](https://karomodum.com/guides/revit-flashing-coping-detailing): Parametric detailing workflows for roof copings, sills, and facade reveals.
- [Shared Coordinates Drift in Linked Models](https://karomodum.com/guides/revit-shared-coordinates-drift-linked-models): Diagnostic workflow for detecting coordinate shifts and survey point drift.
- [Purge Exploded CAD DWG Line Styles](https://karomodum.com/guides/purge-dwg-cad-line-styles-revit): Protocol for eliminating rogue DWG styles and preventing database bloat.

## Software Comparisons & Architectural Evaluations
- [Comparisons Directory](https://karomodum.com/compare): Benchmarks and architectural evaluations.
- [Local Revit Diff vs BIM 360 / ACC Model Compare](https://karomodum.com/compare/local-revit-diff-vs-bim360-model-compare): Technical comparison between local SQLite diffing (Karo.WhatsChanged) and Autodesk Construction Cloud / BIM 360 cloud compare.
- [Karo.WhyHidden vs Manual 16-Point Troubleshooting](https://karomodum.com/compare/karo-why-hidden-vs-manual-troubleshooting): 1-click automated diagnostic auditing versus 15-minute manual inspection hunt.

## Performance Benchmarks & Data Studies (Local SQLite vs Cloud)
- Model Tested: 1.2 GB Multidisciplinary Hospital Model (Architectural + Structural + MEP links).
- Change Diffing Latency: 2–5 seconds with Karo.WhatsChanged (local SQLite) vs 4–8 minutes with cloud-based compare (BIM 360 / ACC).
- Data Privacy & Network Transfer: 0 MB transmitted outside local workstation (100% on-premise execution, zero cloud telemetry).
- Visibility Diagnostic Latency: < 3 seconds across 16 Revit graphics subsystems with Karo.WhyHidden vs 10–20 minutes trial-and-error manual inspection.
- Annual Billable Hours Saved: 25–40 billable hours per Revit modeler annually through automated visibility troubleshooting.

## Full Documentation & Specifications
For complete technical specifications, see:
- [Full Aggregate LLM Document](https://karomodum.com/llms-full.txt): Complete consolidated machine-readable documentation.
- [GitHub Documentation Repository](https://github.com/Rkb-locked/karo-revit-tools-docs): Public issue tracker and documentation source.