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    • 3D AI Modeling (Premium)Useful utility for 3D printing
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    • Acceleration CalculatorUseful utility for 3D printing
    • Filament ConverterUseful utility for 3D printing
    • Filament DryingUseful utility for 3D printing
    • Shrinkage CalculatorUseful utility for 3D printing
    • Spool CalculatorUseful utility for 3D printing
    • Print Cost CalculatorUseful utility for 3D printing
    • Resin Cost CalculatorUseful utility for 3D printing
    • E-Steps CalculatorUseful utility for 3D printing
    • Flow Rate CalculatorUseful utility for 3D printing
    • Volumetric Flow CalculatorUseful utility for 3D printing
    • Layer Height CalculatorUseful utility for 3D printing
    • All ToolsUseful utility for 3D printing
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Grandpa Cad LogoGrandpaCAD
  • Language
    • 🇫🇷 Français
    • 🇸🇮 Slovenian
    • 🇬🇧 English
  • Tools
    • 3D AI Modeling (Premium)
    • Stepper Motor VrefUtility
    • Acceleration CalculatorUtility
    • Filament ConverterUtility
    • Filament DryingUtility
    • Shrinkage CalculatorUtility
    • Spool CalculatorUtility
    • Print Cost CalculatorUtility
    • Resin Cost CalculatorUtility
    • E-Steps CalculatorUtility
    • Flow Rate CalculatorUtility
    • Volumetric Flow CalculatorUtility
    • Layer Height CalculatorUtility
    • All Tools
  • Pricing
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Blog posts

Things and lessons I encountered while building GrandpaCAD, the AI powered CAD software.

Featured

  • FeaturedFeb 21, 2026
    3min read

    Introducing Organic Mode

  • FeaturedAug 16, 2025
    Living doc

    Changelog

  • FeaturedNov 25, 2025
    3 min read

    Multi Color 3D Printing with AI

All posts

  • Feb 20, 2026
    3 min read

    Why we're not upgrading to Gemini 3.1

  • UpdateFeb 17, 2026
    3 min read

    Free 3D printing tools and calculators

  • UpdateFeb 13, 2026
    4 min read

    Blender vs OpenSCAD vs JSCad vs JSON: Choosing the best LLM-to-CAD engine

  • UpdateJan 29, 2026
    2 min read

    Streamlined 3D Printing with BambuLab

  • UpdateDec 12, 2025
    2 min read

    Image to 3D Model: Sketch It, Scan It, Print It

  • Nov 24, 2025
    3 min read

    How It Works

  • Nov 22, 2025
    5 min read

    Comparing State of the Art LLMs for 3D Generation

  • Nov 5, 2025
    8 min read

    How we test the 3D modelling agent

  • Jun 14, 2025
    4 min read

    Grandpa's Story

  • Sep 23, 2025
    4 min read

    Beta

  • TutorialNov 23, 2025
    2 min read

    Prompting Cheat Sheet

  • TutorialNov 21, 2025
    2 min read

    How to Make Your Models Adjustable

  • UpdateOct 19, 2025
    4 min read

    Migrating to Blender

  • Jun 30, 2025
    4 min read

    State of GrandpaCAD

  • Jul 30, 2025
    5 min read

    Paddle vs Polar for payments

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Simple 3D modeling for everyone

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Vref CalculatorAcceleration CalcFilament ConverterDrying CalcShrinkage CalcSpool Calculator
Print Cost CalcResin Cost CalcE-Steps CalcFlow Rate CalcVolumetric Flow CalcLayer Height Calc
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