Free Parametric Flower Pot Generator: 3D Print Custom Planters

Standard plant pots rarely fit a specific shelf, windowsill or workbench space perfectly. The TekOnline Flower Pot Generator lets you create a tapered planter with the exact dimensions you need, complete with a drain hole and optional drainage feet — all from your browser.

Open the Flower Pot Generator

Why a parametric flower pot?

Off-the-shelf pots come in fixed sizes. If you have a narrow shelf, a tight windowsill or a custom hydroponics tray, a parametric pot gives you a perfect fit. 3D printing also lets you choose colours, infill patterns and materials (PLA, PETG, ASA) that suit indoor or outdoor use.

Flower pot parameters

• Bottom OD: outer diameter at the base — 20 mm to 300 mm
• Top OD: outer diameter at the rim — 30 mm to 400 mm
• Wall thickness: 1 mm to 15 mm — thicker walls for outdoor pots, thinner for indoor
• Drain hole OD: 0 mm to 50 mm — set to 0 for a solid-bottom pot
• Pot height: 10 mm to 500 mm — from tiny succulent pots to large planters

New: Drainage feet

A recent update added an optional Drainage Feet checkbox. When enabled, four cylindrical feet are printed under the pot floor, lifting it 5 mm above any surface. Water drains freely through the centre hole instead of pooling against a flat surface. The feet are positioned near the pot edge so they do not block the drain hole.

Quick-start presets

Three presets are included to get you started:

• Standard 100 mm Pot: 80 mm bottom, 120 mm top, 3 mm walls, 10 mm drain hole
• Small 80 mm Pot: 60 mm bottom, 90 mm top, 2.5 mm walls
• Large 150 mm Pot: 120 mm bottom, 180 mm top, 4 mm walls

A fourth preset “100mm Pot w/ Drainage Feet” loads the standard pot with the feet checkbox enabled.

How to generate a custom flower pot STL

1. Open the Gridfinity Generator
2. Select Flower Pot from the generator dropdown
3. Set bottom OD, top OD, wall thickness and height to suit your space
4. Choose a drain hole size (or 0 for no hole)
5. Enable drainage feet if you want the pot elevated
6. Click Generate Preview to see the 3D model
7. Download the STL and open in your slicer

Printing tips for plant pots

• Use PETG or ASA for outdoor pots — PLA degrades in sunlight and moisture
• Increase wall thickness to 3-4 mm for pots that will hold damp soil long-term
• Add 2-3 extra bottom layers if you are using a drain hole, to keep the floor rigid
• Consider vase mode (spiralised outer contour) for single-wall decorative pots

Generate a custom flower pot STL now — free, no account required