How to Laser Engrave Rubber Stamps: LightBurn, Settings & Depth

Laser engraving rubber stamps is a precise and repeatable way to create custom logos, address stamps, business marks, packaging designs, craft patterns, and personalized artwork. A CO₂ laser removes the non-printing background from the rubber while leaving the text or design raised, then cuts the finished stamp into its required outer shape.

The final result depends on more than laser power and speed. The artwork must be mirrored correctly, the background must be prepared for engraving, the engraving and cutting paths must use separate LightBurn layers, and the finished rubber must be cleaned, mounted, and tested on paper. This guide explains the complete LightBurn rubber stamp workflow, tested rubber stamp laser settings, troubleshooting methods, and how to choose the best stamp laser engraving machine.

1. Materials and Tools for Laser-Engraved Rubber Stamps

Successful rubber stamp laser engraving begins with the correct material. Use rubber that is clearly identified by the manufacturer or supplier as suitable for CO₂ laser stamp engraving. General-purpose rubber may contain additives, coatings, backing layers, or polymers that are not suitable for laser processing.

1.1 Materials and Equipment

• Laser-safe stamp rubber
• A compatible CO₂ laser engraver
• LightBurn laser software
• A stamp base or mounting block
• A suitable mounting adhesive
• An ink pad
• Paper for testing the impression
• A toothbrush, soft brush, or cleaning cloth
• Water or a cleaning method approved by the rubber supplier
• Effective exhaust or a suitable fume extractor

1.2 Choosing Laser-Safe Stamp Rubber

Dedicated laser stamp rubber normally produces more predictable engraving depth, edge quality, cleaning, and printing performance than an unidentified rubber sheet. Before processing, record the exact brand, product name, thickness, color, hardness if available, adhesive backing, and recommended cleaning method.

Do not assume that all rubber can be engraved safely. PVC, vinyl rubber, chlorine-containing rubber, PTFE, unidentified recycled rubber, and products with unknown coatings or adhesives should not be placed in a laser machine.

The broader laser cutting and engraving rubber guide explains how to evaluate different rubber materials, review safety documentation, and distinguish cutting, deep engraving, and surface marking applications. The rubber material application page can also help users understand common rubber laser processing use cases before testing a specific sheet.

1.3 Stamp Rubber Test Information

Recording the exact stamp rubber product helps avoid copying settings across different materials.

2. How Rubber Stamp Laser Engraving Works

A laser-engraved rubber stamp contains a raised printing area and a recessed background. The raised text, logo, or illustration receives ink and transfers the design to paper, while the surrounding background is engraved deeply enough to remain below the printing surface.

2.1 Raised Printing Area and Engraved Background

The parts of the design that should appear on paper must remain raised. The surrounding negative space is removed by the laser. If the background is too shallow, it may also touch the ink pad and create unwanted marks around the intended design.

Excessive engraving can create a different problem. Very small text, isolated dots, and thin lines may become weak when too much surrounding material is removed. The correct result is a balance between sufficient background depth and stable printable details.

2.2 Rubber Stamp Artwork Must Be Mirrored

A rubber stamp reverses the image again when it is pressed onto paper. Text, numbers, directional logos, and asymmetric graphics must therefore be mirrored horizontally before engraving.

Mirror the complete stamp design rather than reversing only the text. This prevents a directional icon or logo from remaining in the wrong orientation while the words print correctly.

2.3 Preparing the Background for Engraving

For vector artwork, create a closed outer shape around the stamp design. The outer shape and the internal text or logo should be placed on the same Fill layer so LightBurn engraves the surrounding background while preserving the intended printing area.

A rectangle, circle, rounded rectangle, or custom contour may be used as the background boundary. Check all paths for gaps, duplicate lines, and overlapping objects before processing.

For a bitmap image, use an appropriate image mode and confirm the black-and-white relationship in Preview. The goal remains the same: the background must be removed while the printable graphic stays raised.

2.4 Separate Engraving and Cutting Layers

Engraving and cutting should be placed on separate LightBurn layers because they use different processing modes.

The engraving and cutting paths must use separate layers because they require different processing methods. DPI and scanning settings belong to the Fill engraving layer, not the Line cutting layer.

3. How to Make a Rubber Stamp in LightBurn

The following workflow explains how to make rubber stamps with a laser using LightBurn. Menu names and available controls may vary slightly by LightBurn version and machine controller, but the file structure and processing order remain the same.

3.1 Step 1: Create or Import the Artwork

Create the design directly in LightBurn or import an SVG, AI, DXF, PDF, or high-contrast bitmap. Text, logos, icons, and line illustrations generally work well for custom rubber stamps.

Before proceeding, check for:

• Duplicate paths
• Open vector shapes
• Overlapping objects
• Extremely thin lines
• Text that is too small for the final stamp size
• Unnecessary detail that may disappear during printing

3.2 Step 2: Convert Text to Paths When Necessary

If the file will be moved between computers, convert the final text into paths or curves to prevent missing-font problems. Keep a separate editable copy before converting the text so spelling, size, and layout can still be changed later.

After conversion, check the internal spaces of letters such as A, B, D, O, P, and R. These enclosed areas must remain correctly defined in the engraving file.

3.3 Step 3: Mirror the Entire Design Horizontally

Select the complete design and use LightBurn’s horizontal flip function. Confirm that all text, numbers, logos, and directional graphics have been mirrored together.

3.4 Step 4: Create the Engraved Background

Draw a closed outer boundary around the stamp artwork. Place this boundary and the internal design on the same Fill layer so the surrounding background is removed and the design remains raised.

Leave enough margin between the printable artwork and the final cutting line. A narrow margin can weaken the edge of the stamp or allow ink to reach unintended areas.

3.5 Step 5: Create the Outer Cutting Outline

Create or duplicate a separate closed outline for cutting the completed stamp. Assign this path to a different color layer and set the mode to Line.

The cutting outline may be:

• Rectangular
• Square
• Circular
• Oval
• Rounded
• Custom-shaped around the design

Remove duplicate cutting paths. Two identical lines in the same position may cause the laser to cut the same contour twice and apply unnecessary heat.

3.6 Step 6: Set the Fill Engraving Layer

Double-click the engraving color in the Cuts / Layers panel and select Fill. Enter the starting speed, power, DPI or line interval, scan direction, and number of passes.

A smaller line interval or higher DPI places the scan lines closer together. This may increase coverage and engraving depth, but it also adds heat and processing time. Higher DPI is therefore not automatically better.

For a new rubber product, use a small test design containing:

• Large text
• Small text
• Fine lines
• Solid areas
• Small isolated details

The test should be evaluated after cleaning and printing, not only by inspecting the engraved rubber surface.

3.7 Step 7: Set the Line Cutting Layer

Set the outer contour to Line mode and enter the cutting speed, power, number of passes, and air-assist setting. Use the lowest tested energy that cuts through the rubber cleanly.

Do not include DPI, bitmap settings, or scanning direction in the normal vector-cutting parameter row. These controls apply to raster engraving rather than the outer Line cut.

3.8 Step 8: Set the Processing Order

Arrange the layers so the Fill engraving runs first and the Line cutting runs last.

If the rubber is cut first, the small stamp piece may move, lift, or fall into the laser bed before engraving is complete. Engraving the full sheet first keeps the material stable.

3.9 Step 9: Check the Job in Preview

Open LightBurn Preview before sending the file to the machine. The preview should show the background being engraved, the printable design remaining unengraved, and the outer cutting line running after the engraving.

Check the following:

• The design is mirrored
• The intended background is engraved
• The text and logo remain raised
• The cutting outline is separate
• The engraving runs before the cut
• No objects are engraved or cut twice
• The estimated processing time is reasonable

3.10 Step 10: Position, Focus, and Frame

Place the stamp rubber flat on the laser bed and secure it if necessary. Focus the laser on the actual rubber surface, then use Frame to confirm that the complete engraving and cutting area fits inside the material.

Warped or tilted rubber can produce uneven engraving depth. For batch production, Frame the entire array rather than checking only one stamp.

3.11 Step 11: Run a Small Material Test

Before engraving the final design, test the exact rubber product using a small parameter matrix. Change one primary variable at a time and record the result.

Evaluate:

• Engraving depth
• Small-text clarity
• Fine-line stability
• Rubber deformation
• Dust and residue
• Cleaning difficulty
• Cut-edge quality
• Smoke and odor
• Final paper impression

3.12 Step 12: Engrave and Cut the Rubber Stamp

Start the job and remain beside the laser machine. Confirm that the exhaust or fume extractor is operating correctly, and stop the process if the material produces abnormal smoke, flame, severe melting, or an unexpected odor.

Allow the Fill layer to complete before the Line layer cuts the stamp from the sheet. Avoid unnecessary cutting passes because excess heat can create sticky or melted edges.

4. Tested Rubber Stamp Laser Settings

Rubber stamp laser settings depend on the exact material, thickness, design, engraving depth, lens, machine power, focus, and desired printing result. Use tested parameters as starting references rather than universal values.

4.1 Bolt 30W Rubber Stamp Settings

The following parameters were used for a Thunder Laser rubber stamp project completed with a Bolt 30W.

These settings were tested for one rubber stamp project and should be verified on the exact rubber before production.

The tested Thunder Laser rubber stamp project also includes a downloadable design file and the complete material preparation, focusing, framing, engraving, cutting, and cleaning workflow.

Different stamp rubber, sheet thickness, artwork, or desired depth may require different settings. Test the exact material before production.

4.2 How to Adjust Rubber Stamp Laser Settings

Change one major parameter at a time when adjusting rubber stamp laser settings.

4.4 Rubber Stamp Engraving Depth

Some laser stamp rubber may require approximately 0.9–1.1 mm of background removal, but the correct engraving depth depends on the material, line width, artwork, ink, and normal stamping pressure.

Do not judge depth only by measuring the rubber. The final paper impression should show no unwanted background ink while the raised letters and graphics remain clear and stable.

4.5 Lens Selection

Begin with the standard lens supplied with the laser machine. A shorter-focus lens may help reproduce smaller details, while a standard lens generally provides a more forgiving focus range and a practical balance between engraving and cutting.

Do not assume that one focal length is required for every detailed stamp. Compare lenses using the same rubber, artwork, and laser settings before choosing a production configuration.

5. How to Clean, Mount, and Test the Stamp

Cleaning and testing are essential parts of rubber stamp production. Dust remaining in the engraved background can transfer to the ink pad, reduce detail, and make a correctly engraved stamp appear defective.

5.1 Clean the Engraved Rubber

Allow the rubber to cool before cleaning. Depending on the material supplier’s instructions, suitable methods may include:

• A toothbrush
• A soft brush
• A clean cloth
• A water rinse
• Mild dishwashing liquid
• An ultrasonic cleaning machine
• A manufacturer-approved cleaner

Remove residue from the recessed background and the edges of fine details. Allow the rubber to dry completely before attaching it to the stamp base.

Do not use an unidentified solvent. A solvent that is suitable for one rubber formulation may soften, swell, discolor, or damage another.

5.2 Mount the Rubber on the Stamp Base

Use a flat stamp base and an adhesive compatible with the selected rubber. Align the engraved rubber carefully and apply even pressure during mounting.

Uneven mounting can cause one side of the design to contact the paper before the other, producing incomplete text or inconsistent ink transfer.

5.3 Test the Paper Impression

Ink the completed stamp and test it on clean paper. The printed result, not only the engraved rubber, is the most reliable way to evaluate the project.

The printed paper impression is the best way to confirm whether a rubber stamp is ready for production.

6. Troubleshooting Rubber Stamp Engraving

Most problems in rubber stamp laser engraving come from file preparation, engraving depth, focus, heat input, cleaning, or mounting. Use the printed impression to identify the likely cause.

Troubleshooting should be based on the printed impression as well as the engraved rubber surface.

7. The Best Stamp Laser Engraving Machine

The best stamp laser engraving machine depends on the required engraving depth, stamp size, production quantity, cutting workflow, and available budget. Both diode and CO₂ lasers can process selected laser-safe stamp rubber, but they differ substantially in speed, cutting capability, working area, and suitability for batch production.

Before comparing individual machine models, it is useful to understand which laser source is better suited to the intended rubber stamp workflow.

7.1 CO₂ vs. Diode Laser for Rubber Stamp Engraving

Both CO₂ and diode lasers can engrave selected laser-safe stamp rubber, but they are generally suited to different users and production requirements. A diode laser can be an accessible option for hobbyists making occasional small stamps, while a CO₂ laser is usually better suited to deeper background removal, contour cutting, larger layouts, and repeated production.

A diode laser may be sufficient when the goal is to experiment with laser-safe rubber or make a small number of simple stamps at a lower initial cost. However, processing speed, engraving depth, cutting ability, and results can vary significantly between diode machines and rubber formulations.

A CO₂ laser is the more practical choice when the workflow requires deeper background engraving, clean outer cutting, larger stamp layouts, or repeated batch production. It also allows the Fill engraving and Line cutting processes described in this guide to be completed without moving the rubber between separate machines.

7.2 Bolt Series for Detailed Rubber Stamp Engraving

The Bolt Series is suitable for personalized rubber stamps, business logos, address stamps, craft designs, packaging stamps, and short production runs.

The Thunder Laser Bolt Series is suitable for personalized rubber stamps, business logos, address stamps, craft designs, packaging stamps, and short production runs.

Its RF CO₂ laser source supports detailed raster engraving and vector cutting in the same workflow. This makes the Bolt Series a practical stamp laser engraver for users who frequently change designs or produce small and medium batches.

The Bolt 30W settings shown earlier provide a tested starting reference for rubber stamp engraving, although the exact material must still be verified and tested.

7.3 Nova Plus Series for Larger Stamp Batches

The Nova Plus Series provides more working area for larger rubber sheets, multi-stamp layouts, fixtures, and commercial batch production.

The Nova Plus Series is more suitable when the business needs to process larger rubber sheets, arrange more stamps in one job, use larger fixtures, or increase production capacity.

A larger work area allows multiple custom rubber stamps to be engraved together before the complete sheet is cut. This reduces repeated setup and loading time when the same material and settings are used.

8. Conclusion

Successful laser engraving of rubber stamps depends on correct file preparation and a controlled production workflow. Mirror the complete design, engrave the background on a Fill layer, keep the cutting outline on a separate Line layer, confirm the job in Preview, and always engrave before cutting.

Use verified laser-safe stamp rubber, test the exact material, clean the engraved surface thoroughly, and evaluate the final impression on paper. Once the material, settings, cleaning method, and print quality have been recorded, the same process can be repeated for personalized stamps or larger batch production.