Short Description

A fully customizable modular cart system that uses printed corner brackets, standard rods or broom handles, screws, and caster wheels to create a strong rolling base for cages, boxes, storage units, workshop projects, and more.

Description

This is a universal modular cart system designed to let you build a custom rolling base using simple rods or tubes.
In my build, I used wooden broom handles to create a rolling base for a sugar glider cage, but the design can be adapted for many other uses.

The model is built from printed corner connectors that hold the rods in place and provide mounting points for screws and caster wheels.
The size of the cart is not fixed: you can adjust the dimensions by changing the rod length, rod diameter, screw size, screw hole spacing, and other parameters.

This makes the design useful for many projects where you need a custom-sized rolling frame without designing a new cart from scratch.

Key Features

• Fully customizable dimensions
• Works with rods, tubes, or broom handles
• Adjustable rod diameter
• Adjustable screw hole diameter
• Adjustable screw spacing
• Adjustable connector size
• Designed for caster wheels
• Easy to scale for different cages, boxes, or furniture
• Simple assembly with common hardware
• No need for a fixed-size frame

Use Cases

• Pet cage rolling base
• Storage box cart
• Workshop utility cart
• Small furniture base
• Plant stand base
• Custom rolling platform
• DIY modular frame projects

Customization Options

The model can be customized to fit your own hardware and dimensions.

Recommended parameters to adjust:

• Rod diameter
• Rod length
• Screw diameter
• Screw hole spacing
• Corner bracket size
• Wall thickness
• Wheel mounting hole size
• Clearance between the rod and printed part

Measure your rods, screws, and wheels before printing the final version.

Hardware Required

For one complete cart you will need:

• 4 printed corner brackets
• 4 rods, tubes, or broom handles
• 4 caster wheels
• Screws for mounting the wheels
• Optional: screws to lock the rods in place
• Optional: washers or nuts, depending on your wheel type

Assembly Instructions

1. Print 4 corner brackets.
2. Cut 4 rods or broom handles to the required length.
3. Insert the rods into the printed corner brackets.
4. Attach caster wheels to the bottom of each corner bracket.
5. Tighten the screws carefully.
6. Place your cage, box, or object on the frame.
7. Test the cart slowly before using it with heavy weight.

Safety Notes

This model is intended for light to medium DIY use.
Make sure the frame is stable before placing any heavy object on it.
For pet cages, test the cart without animals first and make sure the cage cannot slide, tilt, or fall.
Do not exceed the strength of your printed material, rods, screws, or caster wheels.

Print Profile Name

Universal Rod Cart Connectors, PETG, Strong Profile

Print Profile Description

Strong print profile for the universal modular rod cart connectors.
Designed for PETG with increased walls and infill for better strength.
Use this profile for functional rolling bases, cage carts, storage carts, and utility frames.

Suggested Category

Household / Storage & Organization
Alternative: Tools / Workshop Utility
Alternative: Pets, if available in your upload category list.