Project Workflow

Project Mode is Splice's workflow for designing electrical systems at the architecture level. Define your system — components, connections, signals — then generate manufacturing-ready assembly schematics from your plan.

Multi-Endpoint Schematic Multi-Endpoint Layout Power Dist. Schematic Power Dist. Layout

Not sure which workflow to use? See the Project vs Assembly Workflow comparison.

Why Project Mode?

Design top-down. Start with the big picture — devices, connections, signal flow. Generate assembly schematics when your design is ready.

Stay generic until you’re ready. Add components without parts. Assign them later when the design stabilizes.

Model devices. Device Groups represent multi-connector devices (PCBs, DIN rail assemblies). Mates document physical connector pairings. Signals classify conductor function.

Handle complex routing. Branch Points model junctions and bus topologies. Distinguish pass-through conductors from physical splices. Build power buses, fan-outs, and tree topologies.

Multi-page organization. Break large systems across pages while keeping a single connected plan. Organize by subsystem — power, comms, sensors.

Core Concepts

See Terminology for detailed definitions.

Workflow

1. Create a Project — Open the projects panel and create a new project.

2. Add Components — Place components for each connector, device, or termination point. Set pin counts and categories.

3. Draw Bundles — Connect components and branch points with bundles.

4. Add Conductors — Use Bulk Connect for batch pin mapping, or click pins in Schematic view.

5. Define Signals — Create signals (VDC, GND, CAN_H, etc.) and assign them to nets for color coding and classification.

6. Assign Parts — Assign parts from the library to components. Parts can be assigned at any point.

7. Organize with Pages — Create pages to separate subsystems (power, comms, sensors).

8. Generate Assemblies — Select components, bundles, and branch points, then generate an assembly. It opens in Harness Builder as a full schematic.

9. Sync Changes — Sync assemblies to push plan changes without regenerating.

Saving & Reverting

Your work is auto-saved as a draft. Close the browser or switch devices — your changes are waiting when you reopen.

• Save (toolbar icon or Ctrl+S) — commits changes and clears the draft.
• Unsaved indicator — a red dot on the project badge and a pulsing save button indicate uncommitted changes. The tab title shows a ● prefix.
• Revert (toolbar history icon, or click the “Unsaved changes” chip) — discards your draft and reloads the last saved version.
• Undo revert — after reverting, an undo button appears briefly to restore changes. Any new edit clears the undo option.

Guides

Examples