Grid for floor sink

Drain Grid (Grelha para Ralo) A customizable drain grid designed for 3D printing using OpenSCAD. Overview This project provides a parametric OpenSCAD design for a drain grid with a central hub, an outer ring, and multiple connecting spokes. The design is fully customizable, allowing you to easily adjust dimensions and structure to fit your specific needs. Features Customizable Dimensions : Easily adjust external diameter, internal diameter, central hub diameter, and height Parametric Design : Modify the number of spokes, spoke thickness, and border thickness 3D Print Ready : Optimized for FDM 3D printing on common printers like the Ender 3 High-Quality Rendering : Configurable quality settings for preview and rendering Creative Commons Licensed : Free to use, modify, and distribute Customization Parameters All dimensions are defined at the top of Grelha.scad : Parameter Default Description DiametroExterno 96.5 mm External diameter of the grid DiametroInterno 92 mm Internal diameter of the grid DiametroCentral 40 mm Central hub diameter Altura 8 mm Height of the grid EspessuraDaBorda 3.5 mm Border thickness EspessuraDoAnel 3.5 mm Ring thickness EspessuraDoRaio 2 mm Spoke thickness NumeroDeRaios 32 Number of spokes How to Use Install OpenSCAD : Download and install from OpenSCAD.org Open the File : Open Grelha.scad in OpenSCAD Customize : Modify the parameters at the top of the file to suit your needs Preview : Press F5 to preview the model Render : Press F6 for final render (higher quality) Export : Export as STL for 3D printing: File → Export as STL 3D Printing Notes Printer : Tested on Ender 3 and compatible FDM printers Material : I tested this model with PET filament and the part became strong enough to support my whole weith on its center. Support : Do not requere supports if correctly oriented Print Time : Varies based on size and printer speed Post-Processing : Just use it. No post-processing required. License This project is licensed under the Creative Commons CC0 1.0 Universal (CC0 1.0) license, which means you are free to: Use this design for any purpose Modify and adapt the design Distribute copies freely Use the design for commercial purposes No permission or attribution is required, though it is appreciated! For more details, visit: Creative Commons CC0 1.0 Author Carlos Eduardo Foltran GitHub: Nartlof Project: DrainGrid Thingiverse: Grid for floor sink Sharing Your Prints If you print this design, feel free to share your creations! You can upload them to: Thingiverse Printables Your favorite 3D printing community Contributing Improvements, suggestions, and modifications are welcome! Feel free to fork the project and submit your enhancements. Support For issues, questions, or suggestions, please open an issue on the GitHub repository. Date Created : April 12, 2026 Last Updated : April 12, 2026