# MoldSim MCP Server MCP Server

Injection molding simulation expertise — materials, process validation, and DFM checks

**Publisher claimed.** No tool list reported, and Pod has not connected to this server.

## Status

Pod has not dialled MoldSim MCP Server yet, so everything on this page is what its publisher reported rather than what we observed. Registries describe servers; they do not connect to them. Until a check runs, treat the tool list below as a claim.

## Connect

Published as `moldsim-mcp` on npm. Runs locally.

## Known issues

**27 problems reported by people outside the maintainer team.** Issues filed by the project's own owners, members and collaborators are excluded — those are release checklists and internal refactors, not things that will go wrong for you. Showing 12.

### Most discussed

### bug: findMaterial() returns wrong results — no exact ID match priority

## Bug

`findMaterial()` ranked results by array insertion order rather than match quality, causing wrong materials to be returned first.

### Examples

| Query | Expected first result | Actual (0.4.2) |
|-------|-----------------------|----------------|
| `pc` | `pc` (Polycarbonate) | `pp-copo` (PP Copolymer) |
| `pa66-gf30` | `pa66-gf30` (PA66-GF30) | `pa6` (PA6 Nylon 6) |

### Root cause

The filter `q.includes(t)` matched substring `"pc"` inside `"ppcopo"` (positions 1–2), and `"pa6"` inside

[Read the thread](https://github.com/moldsim/moldsim-mcp/issues/42) · 2026-03-03 · closed · 1 comment

### [feature] Dynamic cloud pricing on landing page

Implement a Cloudflare Worker (`moldsim-pricing`) that fetches current cloud compute prices from AWS, GCP, and Azure APIs on a daily cron schedule. Store prices in Cloudflare KV with history. Update the landing page to dynamically fetch and display prices instead of static values.

**Endpoints:**
- `GET /prices` → current prices (1h cache)
- `GET /prices/history` → last 30 days
- `GET /prices/history/:date` → specific date

**Instances to track:**
- AWS: c6i.4xlarge, c6i.8xlarge, c7i.8xlarge, hp

[Read the thread](https://github.com/moldsim/moldsim-mcp/issues/12) · 2026-03-01 · closed · 1 comment

### [feature] Carbon footprint estimator — CO2 per part

Estimate carbon footprint per molded part based on:
- Material production CO2 (cradle-to-gate LCA data)
- Processing energy (machine power × cycle time)
- Cooling energy
- Scrap/regrind percentage
- Transportation (optional)

Output: kg CO2 per part with breakdown by source.

Data sources: PlasticsEurope Eco-profiles, published LCA studies.

[Read the thread](https://github.com/moldsim/moldsim-mcp/issues/41) · 2026-03-01 · open · 0 comments

### [feature] Fiber orientation tensor predictor — Folgar-Tucker model

Predict fiber orientation distribution using the Folgar-Tucker model.

Input: fiber parameters (length, diameter, volume fraction), flow conditions
Output:
- Orientation tensor (a11, a22, a12) at different through-thickness positions
- Expected mechanical property variation
- Shell-core-shell structure prediction

This is critical for predicting anisotropic shrinkage and mechanical properties in glass-fiber reinforced parts.

[Read the thread](https://github.com/moldsim/moldsim-mcp/issues/40) · 2026-03-01 · open · 0 comments

### [feature] Interactive troubleshooting wizard

Step-by-step guided troubleshooting for common molding defects.

Unlike the current `query_simulation_knowledge` (single query), this would be a multi-turn conversation:

1. User reports defect (e.g., 'sink marks')
2. Tool asks: Where on the part? Near gate or far?
3. User: Far from gate
4. Tool asks: What's the wall thickness? Any ribs?
5. ... narrows down root cause
6. Provides prioritized corrective actions

Implement as a state machine or decision tree.

[Read the thread](https://github.com/moldsim/moldsim-mcp/issues/38) · 2026-03-01 · open · 0 comments

### Most recent

### [feature] Simulation-to-reality feedback loop

Allow users to input actual production data (measured dimensions, weights, defects) and compare with simulation predictions.

This enables:
- Model calibration (adjust material properties)
- Confidence scoring (how well does simulation predict reality)
- Continuous improvement

Store feedback data for future ML training.

[Read the thread](https://github.com/moldsim/moldsim-mcp/issues/34) · 2026-03-01 · open · 0 comments

### [feature] CAD geometry analyzer via STEP parser

Parse STEP/IGES files to automatically analyze part geometry:
- Wall thickness distribution
- Undercuts detection
- Draft angle analysis
- Surface area and volume calculation
- Projected area (for clamp force)
- Flow length estimation

Could use opencascade.js (WebAssembly port of OpenCASCADE) or similar STEP parsing library.

This would enable fully automated DFM analysis.

[Read the thread](https://github.com/moldsim/moldsim-mcp/issues/32) · 2026-03-01 · open · 0 comments

### [enhancement] Material property unit converter (SI ↔ Imperial)

Add a utility tool `convert_units` or option to display material properties in Imperial units.

Common conversions needed:
- °C ↔ °F (temperatures)
- MPa ↔ psi (pressures, modulus)
- W/mK ↔ BTU/hr·ft·°F (thermal conductivity)
- kg/m³ ↔ lb/in³ (density)
- mm ↔ inches (dimensions)

Many US-based molders work in Imperial units.

[Read the thread](https://github.com/moldsim/moldsim-mcp/issues/31) · 2026-03-01 · open · 0 comments

### [enhancement] Export simulation spec to Moldflow XML format

Export the simulation specification generated by `generate_simulation_spec` in Moldflow Study (*.sdy) or XML format.

This would allow users to directly import the spec into Autodesk Moldflow Insight, saving setup time.

Alternatively, support Moldex3D project format as well.

[Read the thread](https://github.com/moldsim/moldsim-mcp/issues/30) · 2026-03-01 · open · 0 comments

### [enhancement] Add bio-based materials (PLA, PHA, PBS)

Add sustainable/bio-based materials to the database:
- PLA (Polylactic acid) — most common bioplastic
- PHA (Polyhydroxyalkanoate) — marine biodegradable
- PBS (Polybutylene succinate) — compostable

Include processing differences from conventional materials (lower temps, moisture sensitivity, crystallization behavior).

[Read the thread](https://github.com/moldsim/moldsim-mcp/issues/29) · 2026-03-01 · open · 0 comments

### [enhancement] Add thermoset materials (epoxy, BMC, SMC)

Extend the material database to include thermoset materials:
- Epoxy (generic)
- BMC (Bulk Molding Compound)
- SMC (Sheet Molding Compound)

Thermoset processing is fundamentally different — cure kinetics instead of cooling, exothermic reaction, different process parameters.

Requires extending the Material interface for cure model (Kamal model or similar).

[Read the thread](https://github.com/moldsim/moldsim-mcp/issues/28) · 2026-03-01 · open · 0 comments

### [feature] Weld line strength estimator

Estimate weld line strength based on material type and meeting angle.

Factors:
- Material type (amorphous retain ~90%, semi-crystalline ~70-80%, filled ~50-60%)
- Melt front temperature at weld
- Meeting angle (>135° is strong, <90° is weak)
- Packing pressure at weld location

Output: estimated strength retention percentage and recommendations.

[Read the thread](https://github.com/moldsim/moldsim-mcp/issues/27) · 2026-03-01 · open · 0 comments

[See all 17 reports Pod holds for MoldSim MCP Server](/mcp/moldsim-mcp-server/issues) — of 27 qualified upstream.

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