WordPress Product Tool

Woo3D

A solo-built WooCommerce plugin that prototypes a guided 3D-print ordering flow. Customers can upload STL files, inspect a Three.js preview, configure material and infill, receive an estimate, and pass order data into WooCommerce.

Authored by Mateusz Juszczyk

Project facts

Role
I translated the commercial quoting process into the product, then built the plugin, calculator, 3D viewer, licensing, and WooCommerce integration.
Timeline
December 2025–January 2026 · Independent plugin build
Team
Solo project · 1 developer
Woo3D calculator implemented in the Cadevent storefront for custom 3D-print orders

The Challenge

3D printing service pricing is complex. Each model has a unique volume, different materials cost differently, print time varies with infill and geometry, and machine wear must be factored in. Manual quoting is slow and error-prone, making it hard to offer a seamless online purchase experience.

Key decision

Measure STL volume in the browser with the Three.js viewer so pricing can stay immediate without server-side geometry processing.

Approach

Built a WordPress plugin with a Three.js STL viewer for model preview and browser-side volume extraction. A JavaScript calculator estimates material and machine costs from measured volume, infill, quantity, and configurable printer parameters; it is an estimate rather than a slicer or G-code simulation. WooCommerce hooks create hidden products and carry order metadata through the cart. A Firebase-backed Vercel endpoint verifies optional PRO licences.

Key Highlights

  • Three.js STL viewer with volume extraction and print time estimation
  • Multi-material pricing engine with volume-based discount tiers
  • WooCommerce session-based order flow from upload to checkout
  • Admin panel for filament management, printer parameters, and appearance
  • Firebase-verified license system for PRO feature gating
  • i18n translation system for multilingual frontend labels

Architecture

  • WordPress plugin (PHP) with full WooCommerce hook integration
  • Three.js with STLLoader for browser-based 3D model rendering
  • JavaScript calculator for material cost, machine cost, and discount computation
  • Vercel-hosted Firebase license verification API
  • Admin settings dashboard with filament, printer, appearance, and license tabs
  • WordPress cron task for automated draft product cleanup

Verification

  • Source inspection confirms Three.js scene setup, STLLoader parsing, model bounds, and thumbnail generation
  • Calculator code derives material and machine estimates from volume, quantity, infill, rates, and printer settings
  • PHP hooks persist 3D-print metadata, create WooCommerce products, manage session orders, and schedule draft cleanup

Current limitations

  • The repository has no automated tests and is not packaged for the WordPress.org plugin directory
  • Print-time output is a simplified estimate, not a slicer or G-code path simulation
  • PRO operation depends on an external Firebase and Vercel licence service
  • The examined source snapshot contains a duplicate PHP method declaration that must be removed before treating it as release-ready

Outcome

A substantial source prototype covering browser-side STL analysis, pricing, WordPress administration, and WooCommerce order metadata. The repository still needs the duplicate declaration fixed and automated tests before it can be described as release-ready.

Detailed crop of the Woo3D pricing calculator form and model preview
Secondary crop of the Woo3D calculator interface
WordPressWooCommercePHPJavaScript3D Printing
Code