Seed Starter modular system STL | Air Pruning Design(Digital Download)

This modular seed starter tray system is designed to help you grow stronger, healthier seedlings using a proven air pruning root method. Unlike traditional seed trays where roots circle and weaken, this system encourages roots to grow wider and stronger, creating more resilient plants ready for transplanting. 🌬️ HOW AIR PRUNING WORKS (KEY BENEFIT) As roots grow downward, they reach the open grid base and come into contact with air. ✔ Root tips naturally stop growing ✔ Growth energy is redirected sideways ✔ New side roots form and spread ✔ Seedlings develop a dense, strong root structure This process, known as air pruning, is widely used in professional seed propagation systems to produce healthier plants. 📐 DIMENSIONS Base Pallet: 220 × 145 mm Outer Growing Tray: 140 × 55 mm Height: 55 mm The modular layout allows flexible arrangements on desks, tables, or greenhouse shelves. 🧩 DESIGN FEATURES Closed side walls to prevent soil loss Open grid base for air pruning and drainage Raised base pallet for airflow underneath Modular design for expandable setups Clean, functional, and easy-to-print geometry 🖨️ 3D PRINTING DETAILS File format: STL Designed for FDM 3D printers No supports required Easy and reliable to print Recommended settings: PLA or PETG 0.2 mm layer height 10–20% infill For best results, use seed starting soil or coco peat mix. 📦 WHAT’S INCLUDED Outer growing tray Removable air pruning grid insert Base pallet Label slot insert All STL files are clearly named by part for easy printing and assembly. 🏷️ PLANT LABELS (IMPORTANT) Standard plant labels are included. 👉 If you need more labels or different label sizes, please visit my Etsy shop to find the Plant Label STL pack. 👉 If you would like custom or personalized plant labels (with your own text, plant names, or sizes), feel free to contact me via Etsy — I’m happy to help. 📜 LICENSE INFORMATION PERSONAL USE ONLY ✔ You may print for personal use ✔ You may print multiple times for yourself ❌ Commercial use is NOT allowed ❌ Selling printed parts is NOT allowed ❌ Sharing or redistributing files is NOT allowed Commercial licenses are available separately. Please contact me via Etsy for details. ⭐ FEEDBACK If you are happy with your print, I would really appreciate it if you leave a review on Etsy. Your feedback helps support small creators and future updates. Happy growing 🌱 Happy printing 🖨️