via Tendrils Cables
"The Tendrils Patch Planner is a browser-based interactive tool created by Tendrils Cables that lets Eurorack modular synthesizer users virtually map out cable patches, calculate required cable lengths, and generate cable lists or a shopping cart directly from mock-ups of their racks, cases or other instruments.
Key Features
ModularGrid Integration: Upload a screenshot of your rack/s from ModularGrid or paste a direct rack link and the planner will fetch the image.
Scale Calibration: Set accurate dimensions by clicking two points across a module and inputting the size in centimeters so cable length estimations remain precise.
Smart Cable Drawing: Use a click-and-drag crosshair tool to sketch a route. The tool automatically curves and smooths out the line.
Multiple Cable Types: The standard right angled Tendrils, Stakkas stacking cables, Mutants (3.5mm to 1/4") and straight barrel cables are all available and can be switched out by pressing "c" (Colour Picker) and "t" (Type Picker) in edit mode.
Bezier Curve Editing: Click a cable head to select it, then adjust connector locations, re-shape the cable path or add additional handle points to bend wires neatly around crucial knobs, controls and displays.
Load Multiple racks: Load additonal racks into the workspace and patch between them to plan out full live performance setups! Images of any device (Drum Machines, Outboard Synths, Mixers, etc) can be added if you match the scale of the MG images.
Shopping Cart Sync: Once your virtual patch is finished, you can click a button to seamlessly add the exact lengths and styles of cables used directly into the web store cart, or export the cable list to text file for future reference or ordering from other retailers."
