Ultimate Tube End Cap & Furniture Foot Generator

Create the perfect tube cap, plug or furniture foot in seconds.

The Ultimate Tube Cap & Furniture Foot Generator is a simple parametric tool designed for anyone who needs custom end caps for round, square or rectangular tubing.

Just enter the basic dimensions of your tube and choose what you want to make. The generator automatically calculates the internal dimensions, clearances, insertion depth, grip ribs and proportions for you.

No CAD experience required.

You can generate:

Internal Plugs Designed to slide inside the tube with automatic retention ribs and an easy-entry taper.

External Caps Designed to fit over the outside of the tube.

Furniture Feet A wider base designed for chair legs, tables, frames, shelving, metal tubing and DIY furniture.

Supported tube shapes:

Round • Square • Rectangular

You can also choose between:

Solid – stronger, fully filled insert Hollow – lighter, saves filament and provides slightly more flexibility during installation

The generator automatically adjusts the fit according to the tube dimensions, so you don't need to calculate tolerances manually.

How to use

Measure your tube and enter:

1. Part Type Choose Plug, Cap or Furniture Foot.

2. Tube Shape Round, Square or Rectangular.

3. Outside Width / Diameter

4. Outside Depth Only required for rectangular tubes.

5. Wall Thickness

6. Solid or Hollow

Then simply press Generate .

Features

Automatic sizing and fit Automatic grip ribs Automatic insertion depth Easy-entry tapered end Round, square and rectangular tubing Internal plugs External caps Furniture feet Solid and hollow versions Optimized proportions for different tube sizes No CAD knowledge required Fully customizable directly in MakerWorld

Perfect for:

Furniture repair, chair legs, tables, metal tubing, aluminum profiles, workshop projects, DIY builds, frames, shelving and replacement parts.

ONE GENERATOR. ANY TUBE.

Measure your tube, enter the dimensions and let the generator do the rest.

Boost Me Boost this model if you want more practical parametric generators! 🚀 More tools are coming.