Tobias Diehl
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Private project

WinkelMeister

Published iOS app for precise construction-site calculations

WinkelMeister is an offline Flutter iOS app for carpentry and timber construction. It calculates triangles, spacing layouts, cutting plans and level measurements quickly, clearly and without a network dependency.

WinkelMeister spacing workflow with purlin length and calculated rafter values
WinkelMeister triangle calculation with filled values

Overview

The project combines a modern Flutter interface with separated controllers and isolated calculation cores. Triangle calculations, spacing layouts, cutting optimization and level measurements remain distinct workflows while the main calculation paths stay testable independently from the UI.

Engineering highlights

Flutter UI with clearly separated controllers and pure calculation cores

Triangle, spacing, cutting and level workflows as focused app modules

Offline workflow for fast use on construction sites

Domain rules protected with widget, controller and domain tests

Screenshots and demos

WinkelMeister triangle calculation with filled values
Triangle workflow with entered legs and automatically calculated hypotenuse and angles.
WinkelMeister spacing workflow with purlin length and calculated rafter values
Spacing workflow with purlin length, clear span, rafter width and visual check view.
WinkelMeister cutting workflow with entered timber before optimization
Cutting input with stock timber and required pieces before optimization.
WinkelMeister cutting plan with calculated beam visualization
Calculated cutting plan with beams, leftovers, waste and utilization.

Architecture

Architecture: WinkelMeister
Architecture: UI, controllers, sensor integration and calculation cores are separated so domain rules remain independently testable.Open large diagram

Project links

WinkelMeister