Reported issues for MoldSim MCP Server

Pod holds 17 of 27 problems reported by people outside the maintainer team. Issues filed by the project's own owners, members and collaborators are excluded entirely — a maintainer's release checklist is not a warning to a prospective user.

Back to MoldSim MCP Server.

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

Root cause

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

Read the thread · 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 · 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 · 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 · 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 · 2026-03-01 · open · 0 comments

[feature] Material supplier API integration

Connect to material supplier APIs for real-time data:

• BASF Ultramid/Ultrason databases
• Covestro Makrolon/Bayblend databases
• SABIC LEXAN/NORYL databases
• DuPont Zytel/Delrin databases
• Campusplastics.com — universal material database

Replace generic material data with grade-specific properties when available.

Read the thread · 2026-03-01 · open · 0 comments

[feature] Cloud simulation job submitter

Submit Moldflow/Moldex3D simulation jobs to cloud compute directly from MCP.

Workflow:

1. Generate simulation spec
2. Select cloud instance (with pricing from worker)
3. Upload model + settings
4. Launch simulation
5. Monitor progress
6. Download results

Requires integration with cloud HPC services or custom orchestration.

Read the thread · 2026-03-01 · open · 0 comments

[feature] Multi-cavity balance checker

Analyze runner system balance for multi-cavity molds.

Input: number of cavities, runner layout (H-pattern, fishbone, etc.), runner dimensions Output:

• Fill balance analysis
• Pressure drop per cavity
• Recommended runner modifications
• Naturally balanced vs geometrically balanced assessment

Read the thread · 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 · 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 · 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 · 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 · 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 · 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 · 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 · 2026-03-01 · open · 0 comments

[feature] Mold temperature map advisor

Recommend cooling zone temperatures for different part regions.

For complex parts, different areas may need different mold temperatures:

• Near gate: slightly higher (reduce freeze-off)
• Thick sections: lower (faster cooling)
• Cosmetic surfaces: higher (better surface finish)
• Crystalline materials: controlled cooling for uniform crystallinity

Output a zone map with recommended temperatures.

Read the thread · 2026-03-01 · open · 0 comments

[feature] Cycle time estimator

Estimate total cycle time by summing:

• Mold close time (machine-dependent)
• Injection time (from flow analysis)
• Packing time (from gate freeze)
• Cooling time (from thermal analysis)
• Mold open time (machine-dependent)
• Ejection time
• Robot/handling time

Provide breakdown and identify bottleneck phase.

Read the thread · 2026-03-01 · open · 0 comments

The remaining reports are on the project's issue tracker.