1.3 KiB
1.3 KiB
PRD - Gridfinity Calculator
1. Overview
The Gridfinity Calculator is a web tool designed to help makers plan their Gridfinity layouts. It calculates the number of baseplates that fit in a specific container and the maximum bin height allowed.
2. Target Audience
- 3D printing enthusiasts using the Gridfinity system.
- Workshop organizers and hobbyists.
3. Key Features
- Dimension Input: Width, Length (Depth), and Height of the target drawer/container.
- Unit Toggle: Support for Inches (decimal/fractional) and Millimeters.
- Spec Overrides: Modify standard 42mm grid and 7mm height unit.
- Dynamic Results:
- Total full grid squares (e.g., "5x4 grids").
- Fit percentage/fractional grids (e.g., "5.2 x 4.1 grids").
- Vertical Unit Height (U) for bins (e.g., "6U").
- Remaining space (gap) in mm/inches.
4. Technical Constraints
- Must be fast and lightweight.
- Must work offline once loaded (single-page build).
- Mobile-responsive design.
5. Calculation Logic
Grid Count = Floor(Drawer Dimension / Grid Spec)Exact Fit = Drawer Dimension / Grid SpecBin Unit Height (U) = Floor((Drawer Height - Base Thickness) / Height Unit)- Default Base Thickness: 4.8mm
- Default Grid Spec: 42mm
- Default Height Unit: 7mm