# Fort to Scale

> Plan a grown-up blanket fort from the things in the room and get it drawn as a three-view engineering drawing. Free in the browser; one metered run writes the build notes printed on the drawing.

Live at https://fort-to-scale.skillsafe.ai/ - API guide at https://fort-to-scale.skillsafe.ai/api.html

## What it does

- You list what is in the room, one thing a line: chairs, a sofa, a table, sheets, blankets, throws, clips or pegs, books, cushions and lights, with sizes in cm (or inches) where you know them. You also say how many people (1 to 4) and whether they will sit up, lounge on cushions or lie down.
- The page tries each frame the list allows - a sofa with a row of chairs facing away from it, two rows of chairs facing away from each other, or a table - and keeps the one that fits everyone.
- It sizes the span to give everyone a place, works out how far the roof sheet dips and the headroom left at the middle, picks the roof sheet, closes the walls with the other sheets (less a 60 cm door), and counts the clips and weights needed.
- Verdict, checked in this order: rethink the frame (not enough room or headroom), more fabric (roof sheet too small or walls left open), more clips (fewer holders than needed), build it.
- It draws the fort on an A3 sheet in third-angle projection - top, front and right views at a standard scale (1:10, 1:20, 1:25 or 1:50), an isometric, dimensions, a parts list and a title block. Downloads: SVG, PNG, print at A3, parts CSV.
- One metered run (task `notes`, model gpt-terra) writes the build notes: a headline, five notes for the drawing (frame, roof, walls, holders, inside), a fix and a safety line. The page checks every note against its own plan.

## Estimates and safety

Places, headroom needs, the sheet's dip, tuck and clip spacing are rough rules of thumb, shown as estimates. Nothing hot under the fabric: no candles, heaters or hot bulbs - battery or LED lights only. Keep the door end clear, never hang fabric from shelves or lamps that could tip, and never climb on the frame. A planning aid, not professional advice.

## Source

Built on the SkillSafe skill @earthtojake/engineering-drawing (https://skillsafe.ai/skill/@earthtojake/engineering-drawing) - engineering drawings projected from a part's geometry: orthographic views, real dimensions, notes and a title block - from earthtojake/text-to-cad (MIT).