3D Printing Tip: Easily Turn Models into Keychains

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A hand holding a 3D printed keychain of a penguin wearing a chef's hat and sunglasses, holding a golden spoon

Ever found a model you love and wanted to turn it into a keychain or backpack charm, but struggled with the lack of a hanging hole? With just a few clicks in QIDI Studio, you can create a perfect circular hole for any model. Master the following steps, and all your favorite 3D printed trinkets can be effortlessly turned into hangable accessories.

Schematic Diagram

Original Model:

A hand holding a 3D printed keychain of a penguin wearing a chef's hat and sunglasses, holding a golden spoon

Modified Charm Version:

A hand holding a 3D printed keychain of a penguin wearing a chef's hat and sunglasses, holding a golden spoon

Operation Guide

There are two simple methods to add a hanging hole to a model: using parts and using negative parts.

1. Using Parts

After importing the model file, right-click on the model and select Add Torus Part.

A screenshot of 3D printing slicer software, showing how to add a torus shape to the penguin model project
A screenshot of a 3D printing software interface, showing a small torus shape added to the print bed next to a penguin model

Use the corresponding tools to adjust the part’s position, angle, and size to create a suitable hanging hole. You can also modify its color.

A screenshot of a 3D printing software interface, demonstrating the movement of the torus shape to the top of the penguin's head

2. Using Negative Parts

Right-click on the model and select Add Negative Part, then choose a cylinder or torus as needed. (A negative part refers to a section that will be subtracted from the original model.)

A screenshot of a 3D printing software interface, with the user selecting to add a cylinder as a negative part to the project

Adjust the size and position of the negative part.

A screenshot of 3D printing software, showing the scaling of a cylinder on the penguin's head to create a hole for a keychain

Click Slice, and you’ll notice that a through-hole will be formed at the location of the negative part.

A close-up screenshot of the sliced 3D model, revealing the final keychain hole on the side of the penguin's chef hat

Once confirmed, send the file to the printer and start printing.

Conclusion

One of the charms of 3D printing is its customizability. Whether it’s a free downloaded model or a purchased design, you can use this simple slicing trick to make it better suit your needs!

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