This is a cover image about a keychain.

How to Cut and Engrave a Custom Keychain Using a Laser Engraver

Written by Mercy Lilian

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Published on

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Reading time for 6 min

Keychains have been practical accessories that we all use on a daily basis, making them a good choice to personalize. Thanks to technology, you can now cut and engrave designs on different materials and turn them into beautiful, unique keychains for brand marketing, gifting, or personal use.

If you are unsure of the right materials to use, how to configure the laser engraver to cut and engrave acrylic, and the finishing touches, I will lay it out for you in this article.

The Materials and Tools You Need

Acrylic 3 mm thick

Keychain rings

Painters tape

Cutting design

Engraving design

Design software

Laser engraving machine

Optional items that will be useful in this project 

220 grit sandpaper

Isopropyl alcohol and microfibre cloth

Paint or paint pens

Clear acrylic sealant or finish

Cutting the Keychain Using a Laser Engraver

Step 1: Prepare the Materials

If you have a big acrylic sheet, reduce it to a manageable size using a saw so that it fits on the laser bed. It is best to have a regular shape before cutting.

Clean the surface either by washing it with water and soap, or by using rubbing alcohol and a clean cloth. After drying, apply painters’ tape on the top side of the acrylic. This prevents smoke stains and burn marks from forming on the surface after cutting with the laser beam.

Step 2: Design a Shape for your Acrylic Keychain Using Design Software

Create a shape to cut using design software like Adobe Illustrator, CorelDRAW, or Canva. You can also import and download shapes from premade files in SVG or DXF format for editing. The laser beam works best with vector formats since they are the easiest to trace. Saving the design in vector also helps editing it in future more easily and more accurately.

The image is a diagram of the software used to design the keychain.

Step 3: Power Up the Laser Engraver and Set It Up

Start by cleaning the laser bed and lens to remove any debris that might interfere with the cutting precision. Then, plug the engraver into a power source and flip the main power switch. 

The picture shows Step 1 of the procedure for starting the laser engraver and setting it up.

Release the emergency button to allow power into the machine and start its functions.

The picture shows Step 2 of the procedure for starting the laser engraver and setting it up.

Once the engraver has powered on, the laser head will automatically slide to its “home” position.

Step 4: Connect the Engraver to the Software

This connection allows you to send your design to the engraver for cutting, make adjustments to the laser settings and be in control of the process. You can connect using USB cable, WiFi, Bluetooth, or Cloud apps depending on the engraver type.

The picture shows Step 1 of the procedure for connecting the laser engraver .

The “Add a device” button should detect the engraving machine then enable and save a connection. If the software is unable to detect the engraver, check the cable connection or restart both the computer and the engraver.

After connecting the main control panel pops up, showing it is ready to send the file to the engraver machine for cutting.

Step 5: Run a Frame Test

Place the acrylic on the laser bed and use the laser’s focus tool to adjust the laser head height depending on the material thickness.

The picture shows Step 2 of the procedure for connecting the laser engraver .

Press the “Frame” button to conduct a frame test. This prompts the laser head to move around the boundaries of your outline without firing laser beams.

The picture shows Step 3 of the procedure for connecting the laser engraver .

Step 6: Tune the Cutting Settings On The Engraver

Adjust the main cutting parameters in the laser software: power, speed and number of passes. Here are the recommended settings for different acrylic types.

Material

Power

Speed (mm/s)

Passes

Clear Acrylic

90-100

8–12

2

Mirror Acrylic

85–95

10–15

2-3

Fluorescent Acrylic

90-100

10-15

2

Glitter Acrylic

95–100

8–12

4

Set the laser’s focal point on the surface or slightly below the acrylic and enable air assist before sending the design for cutting.

Step 7: Start Cutting the Acrylic Keychain with the Laser Engraver

If you are working with both engraving and cutting designs on the same canvas, select the cutting layer and then the “start” button. As it cuts, check for excessive smoke, fires, or movement of the acrylic as it cuts. If any of that happens, flip the emergency switch to stop the process.

The picture shows Step 5 of the procedure for connecting the laser engraver .

After the machine is done with the process, allow some cooling time before removing the cut pieces. If the cuts are accurate and clean, you can move on to the engraving process. If not, start another pass using the same cutting settings.

The Process for Engraving on the Keychain

Step 8: Prepare a Design for the Keychain

Using the same design software, prepare a design using simple, high contrast graphics, or clear readable fonts. A good tip to remember when engraving photos is that they work best when they are in white and black. 

The image shows step-by-step picture 1 of how to make a keychain using a laser engraving machine.

Start working with a blank canvas, import the design, then size it to match the keychain and save it in vector format.

Step 9: Set up the Laser Engraver

Here are some recommended engraving settings for power, speed and passes on different acrylic types. 

Material

Power (%)

Speed (mm/s)

DPI (Resolution)

Passes

Acrylic (clear)

20–35

250–350

600

2

Mirror Acrylic

30–45

250–350

600

1

Fluorescent Acrylic

20–35

250–350

500

2

Glitter Acrylic

30–50

200–300

400

3

Select the fill method for logos, letters and numbers, and the image method for photos.

Step 10: Run a Frame Test on the Keychain

Place the keychain on the laser bed, and focus the laser head until you have sharp beam focus, and then engage the frame test again.

The image shows step-by-step picture 2 of how to make a keychain using a laser engraving machine.

Watch the laser head move and ensure that the laser path doesn’t go beyond the acrylic’s boundaries. Any magnets used to secure the keychain should be outside the test frame’s path.

Step 11: Engrave the Design

Once everything is in place, press the “start” button to start the engraving process. If you are using the cutting design together with the engraving one, double check to ensure you have selected the engraving layer.

The image shows step-by-step picture 3 of how to make a keychain using a laser engraving machine.

Again, check any of the danger signs throughout the engraving process. If you spot a fire or the acrylic repositions, engage the emergency button to stop the process. Remember, acrylic can be flammable, so have a fire extinguisher nearby.

Step 12: Assemble the Keychain

After engraving is done, peel off the painter’s tape and brush any burnt residue away using a soft brush. Attach the jump rings to the keychain’s opening using a pair of pliers. If not using a jump ring, insert the keychain piece directly in the split ring like you would a key.

The image shows step-by-step picture 4 of how to make a keychain using a laser engraving machine.

Step 13: Finishing Touches (Optional)

To improve the aesthetics and increase durability of the keychain, you can add color to the design, or seal the surface. Use acrylic or paint pens to apply color on the engraved areas. After drying the paint, use clear acrylic spray to seal the surface. Sealing prevents fading, moisture damage, and scratches, which is especially important as keychains are handled so often.

The image shows step-by-step picture 5 of how to make a keychain using a laser engraving machine.

If you don’t have a laser engraver or prefer a more colorful and detailed design on your keychain, you can use a heat press machine to print designs on heat transfer vinyl or adhesive vinyl and stick it on the keychain.

FAQs on Laser Cutting and Engraving on a Keychain

1. What are the recommended materials to use to make laser-cut keychains?

Most crafters use wood (birch, maple, walnut), acrylic, leather, anodized aluminum or plastic. Avoid PVC in this project as it releases toxic fumes when cutting.

2. How do I add a hole in the material for the keychain?

The best way to do it is to include a small circle in your vector design before cutting, and mark it as a cut layer. You can also use third-party hardware like screw-in eyelets or rivets to drill a hole in the material if you skipped it in the design and cutting phase.

3. Why is my engraving not dark enough?

This is mainly caused by insufficient energy and too high a speed when engraving. It also happens if the laser beam is not focused and when the material being engraved has a coating. To fix it, ensure you are using the right engraving settings, sharply focus the laser beam, and remove any coatings before engraving.