Grain Studios: RailMind
A no-AI, touch-driven Kato Unitrack layout editor for iPad — N and HO scale. Lay track with your fingers, snap pieces together exactly the way the real Unijoiners do, price out what you'll need from Kato's published MSRP, and save your plan. Fully offline: no account, no network, no AI.
- Role
- Designer & Developer
- Platform
- iPadOS
- Industry
- Hobby & Tools
- Focus
- Track Planning
Project Overview
RailMind is a track planner for people who actually build the layout. It lays real Kato Unitrack — N and HO — on a snap-together canvas where every piece connects only where real track physically can, so what you draw, you can build. You start from an example layout or from scratch, pull straights and curves from a palette keyed to Kato part numbers, and the plan keeps a running parts list priced from Kato's published catalog. It is deliberately not an AI tool: no account, no network, no suggestions. The one piece of automation is a geometric solver that closes a gap in track when you ask it to.
Key Features
- →Track-piece palette of real Kato Unitrack in N and HO — straights (S248–S29) and curves (R117-45 and up), each labeled with its exact Kato part number
- →Snap-together canvas where pieces connect only where real track physically can — plan it here, build it on the table
- →Twelve example layouts to start from — nine N, three HO — each opened as your own editable copy
- →Parts list priced from Kato's published MSRP (catalog #25-110) divided by real pack size — presented as a planning estimate, because Kato sells track in packs and street prices vary
- →An auto-router that closes a gap in track using an A* search over real piece geometry — a deterministic solver, offline, no model involved
- →Fully offline by design — no account, no network calls, no AI, no ads