Historic Corbel Restoration for JTJ Studio Corporation - Exact Replication After Original Pieces Shattered
Project Type: Custom Corbel Replication / Architectural Restoration
Location: USA
Client: JTJ Studio Corp dba Vertical Space
Industry: Design / Architecture / Restoration / Specialty Build
Product System: Reverse Engineering + 3D Modeling + Master Pattern + Silicone Mold + Replication by Royal Foam
Timeline: Rapid custom restoration workflow
Result: Royal Foam recreated shattered custom corbels as precise replicas using digital modeling, 3D printing, silicone molds, and repeatable production methods.
PROJECT OVERVIEW
JTJ Studio Corp dba Vertical Space needed to replace a set of highly decorative custom corbels after the original pieces were damaged and shattered.
The challenge was not simply producing “similar” parts.
The client required:
- Exact visual copies
- Preservation of ornate historical detailing
- Repeatable production capability
- Fast turnaround for project continuity
- Reliable fit with the existing installation
Royal Foam was selected to engineer a full replication solution.
Instead of starting from scratch with expensive carving, Royal Foam used a modern precision workflow to reproduce the original forms.
THE CHALLENGE
Context
- Existing decorative components destroyed
- Ornate profile with complex details
- Replacement pieces needed to match surrounding architecture
Constraints
- No off-the-shelf equivalent available
- Fine ornamental details had to be preserved
- Schedule pressure from ongoing project timeline
Risks
- Hand-sculpted replacements could be inconsistent
- Traditional carving would be costly and slow
- Poor copies would be visually obvious
- Inaccurate dimensions could delay installation
THE SOLUTION (ENGINEERING APPROACH)
5.1 Reverse Engineering
- Measured surviving geometry / references
- Captured profile dimensions and symmetry logic
- Identified restoration tolerances
5.2 Digital Modeling
- Full 3D CAD reconstruction of original corbel design
- Cleanup of damaged areas
- Refinement for perfect repeatability
5.3 Master Pattern Creation
- High-resolution 3D printed master copy produced
- Surface refinement for mold-ready quality
5.4 Mold & Production
- Custom silicone mold fabricated
- Replica corbels cast from approved master
- Multiple matching units produced efficiently
Result: Exact-looking replacements with scalable production capability.

SYSTEM ARCHITECTURE
Replication Workflow
- Original reference assessment
- 3D digital model creation
- Printed master pattern
- Silicone production mold
- Final replicated corbels
Result: Traditional craftsmanship look with modern precision manufacturing.
BEFORE / AFTER COMPARISON
BEFORE
- Original corbels shattered
- Incomplete architectural assembly
- No direct source for replacements
AFTER
- Exact replicated corbels installed
- Full visual continuity restored
- Repeatable molds available for future production
The project moved from loss and uncertainty to complete restoration.

IMPLEMENTATION PROCESS
Step 1 — Assessment
- Reviewed broken / reference components
- Determined reproduction path
Step 2 — 3D Modeling
- Built precise digital geometry
- Corrected damaged or missing areas
Step 3 — Prototype
- Produced 3D printed master sample
- Verified shape and proportions
Step 4 — Mold Fabrication
- Created silicone mold system
- Prepared for production runs
Step 5 — Replication
- Manufactured final corbels
- Delivered ready for installation

RESULTS (KEY METRICS)
- Exact-style replicas created from damaged originals
- Fine ornamental detail preserved
- Faster than traditional hand carving methods
- Repeatable mold enables future replacements
- Reduced restoration risk
- Reliable dimensional consistency
- Project schedule protected
VALUE ANALYSIS (TCO)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
WHY NOT TRADITIONAL METHODS?
Traditional Replacement Path
- Manual sculpting from scratch
- Longer timelines
- Harder to match originals exactly
- Higher labor costs
Royal Foam Solution
- Digital precision reconstruction
- Fast prototype approval
- Mold-based repeat production
- Consistent final results
