Show HN: Splice CAD – Wiring and cable assembly CAD with an agentic assist
A CAD tool for wiring and cable assemblies that simplifies complex design, automates data extraction from PDFs/BOMs using LLMs (Claude), and aims to connect engineers with fabrication shops.
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Product Positioning & Context
AI Executive Synthesis
A CAD tool for wiring and cable assemblies that simplifies complex design, automates data extraction from PDFs/BOMs using LLMs (Claude), and aims to connect engineers with fabrication shops.
Splice CAD targets a critical niche in industrial design and manufacturing: wiring and cable assembly. Its integration of 'agentic workflows' with LLMs like Claude for automating data extraction from PDFs and GitHub BOMs directly addresses a significant pain point in engineering documentation and design input. This automation reduces manual effort and potential errors, accelerating the design process. The platform's long-term vision to connect engineers with fabrication shops positions it as a potential marketplace, creating a full-lifecycle solution from design to manufacturing. This product exemplifies the strategic application of AI to streamline complex, data-intensive engineering tasks within a specialized B2B vertical.
Still working on Splice CAD. The two most significant updates focus on handling design complexity and automating using agentic workflows. Previous Show HN here:https://news.ycombinator.com/item?id=449781401. Projects:This workflow is more amenable to system-level modeling. It overlaps somewhat with the original workflow but includes improvements including:Complex Routing: Model topologies with branchpoints.Mating Relationships: Represent physical mating (e.g., a receptacle into a PCB header or a ferrule into a terminal block) for completeness.Decoupled BOMs: Part assignment is now separate from component addition; you can generate a BOM and then assign specific MPNs to components as the design evolves.Net Visualization: Nets are identified and visualized across conductors, terminations, and mating relationships.QOL and Visualization Improvements: Assign components to one or more pages to separate designs by function. Ability to create Device Groups (eg. model a PCB with multiple headers and then break out your wiring) and Subassemblies for design reuse. Copy and paste from TSV for easier interaction with spreadsheets. Copy and paste between browser tabs.2. MCP Server & Agentic Workflows:Also new is the Splice CAD MCP server, which allows the tool to interact directly with LLMs like Claude. Manually entering data and extracting it from PDFs has always been a pain when documenting wiring and cable assemblies. I initially tried to handle PDF vision and extraction internally and took several wrong turns; the agentic approach is a much better fit. You can point Claude at a PDF schematic or a GitHub BOM and have it generate a multi-page design.Try it out (No signup): https://splice-cad.com/#/harness + Create icon from top toolbar, New ProjectDocumentation: https://splice-cad.com/docs/plan and some examples https://splice-cad.com/docs/plan/multi-endpoint-harnessMCP Server Details: https://splice-cad.com/blog/mcp-server-agentic-workflows-mar... and https://github.com/splice-cad/splice-cad-mcpDiscord: https://discord.gg/5CTH7mnrk8My intention is to keep Splice CAD free for design use and leverage it as a platform to connect cable assembly and wiring shops with engineers who need their designs fabricated. I’m seeking a co-founder with a strong background in manufacturing sales and business development to complement my technical focus. If you're interested, please email me using the address listed in my About section.
Wiring and cable assembly CAD
agentic workflows
system-level modeling
Complex Routing
Mating Relationships
Decoupled BOMs
MPNs
Net Visualization
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What is Splice CAD – Wiring and cable assembly CAD with an agentic assist?
Splice CAD – Wiring and cable assembly CAD with an agentic assist is analyzed by our AI as: A CAD tool for wiring and cable assemblies that simplifies complex design, automates data extraction from PDFs/BOMs using LLMs (Claude), and aims to connect engineers with fabrication shops.. It focuses on Splice CAD targets a critical niche in industrial design and manufacturing: wiring and cable assembly. Its integration of 'agentic workflows' with ...
Where did Splice CAD – Wiring and cable assembly CAD with an agentic assist originate?
Data for Splice CAD – Wiring and cable assembly CAD with an agentic assist was aggregated directly from the Hacker News community ecosystem, representing raw developer and early-adopter sentiment.
When was Splice CAD – Wiring and cable assembly CAD with an agentic assist publicly launched?
The initial public indexing or launch date for Splice CAD – Wiring and cable assembly CAD with an agentic assist within our tracked developer communities was recorded on April 7, 2026.
How popular is Splice CAD – Wiring and cable assembly CAD with an agentic assist?
Splice CAD – Wiring and cable assembly CAD with an agentic assist has achieved measurable traction, logging over 3 traction score and facilitating 0 recorded discussions or engagements.
Which technical categories define Splice CAD – Wiring and cable assembly CAD with an agentic assist?
Based on metadata extraction, Splice CAD – Wiring and cable assembly CAD with an agentic assist is categorized under topics such as: Wiring and cable assembly CAD, agentic workflows, system-level modeling, Complex Routing.
What are some commercial alternatives to Splice CAD – Wiring and cable assembly CAD with an agentic assist?
Our semantic intelligence engine identifies potential commercial alternatives in the SaaS space, such as Seller by Facebook, which offers overlapping value propositions.
How does the creator describe Splice CAD – Wiring and cable assembly CAD with an agentic assist?
The original author or development team describes the product as follows: "Still working on Splice CAD. The two most significant updates focus on handling design complexity and automating using agentic workflows. Previous Show HN here:https://news.ycombinator.com/item?id..."
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