LDS App Operation Guide

(1) Connect Your Machine: Tap to open the Bluetooth/Wi-Fi connection interface and connect your machine.

(2) Add Device: Scan and pair a new laser device.

(3) Album: Select an image from your phone’s album and import it for engraving.

(4) Camera: Open the camera to take a photo and import it for engraving.

(5) Create: Enter the creation workspace.

(6) Material: Open the built-in material library to browse and use preset patterns.

(7) Home: Return to the main interface.

(8) Community: Open the user community to view others’ works and share your creations.

(9) User: Access your personal account page, including post history, project list, engraving history, and settings.

(1) Tap Create, Album, or Camera on the home page. The app will take you to the login/registration page.

(2) Read and agree to the User Agreement and Privacy Policy, then tap Create an Account and follow the instructions to set up your account. (If you already have an account, you can skip this step.)

(3) After creating your account, log in to continue to the next step.

(1) To connect a device for the first time, tap the "+" icon in the top-right corner, select LP4 as your machine, then search for your LP4 via Bluetooth and connect. 

If the system requests location access, allow it. This is required for Bluetooth functionality. 

(1) Back: Return to the main interface.

(2) Save Project: Tap to save the current project.

(3) Preview: Tap to open the preview interface.

(4) Mode Settings: Tap the gear icon to open the Mode Settings panel.

(5) Canvas: The canvas is the working area for placing your engraving design, with rulers along its edges. The LP4’s engraving area is an oval measuring 160 × 120 mm. For best results, place your design inside the blue frame, while the red frame indicates the maximum engraving area. Avoid placing designs near the corners of the red frame, as this may result in incomplete engraving or faded colors. The available engraving area may vary depending on the machine model.

(6) Toolbar: Provides tools for importing images, creating text, adding basic shapes, and drawing graffiti, allowing you to quickly create engraving designs.

(1) Tap the Image button to open and import photos or image files from your phone.

(2) Click on the image on the creation page to raise the edit panel.

1️⃣Black & White

(1) Select B&W mode and adjust the Threshold to change the image display effect.

(2) Tap the Invert Colors button to invert the colors of the image.

2️⃣Dithering

(1) Select Dithering mode. The two sliders control Contrast and Brightness, allowing you to adjust the image display effect.

(2) Tap the Invert Colors button to invert the colors of the image.

3️⃣GCode

(1) Select GCode mode. Adjust the Line Spacing and Angle to change the image display effect.

(2) Tap the Confirm button. The app will outline the image, converting the engraving type from image engraving to line engraving/cutting. For best results, it is recommended to use images with few colors and clear layers.

4️⃣Pencil & Stamp

(1) Select Pencil mode and adjust the Threshold to change the image display effect.

(2) 2. Select Stamp mode and adjust the Threshold to change the image display effect (Stamp mode horizontally mirrors and inverts the image).

5️⃣2D Embossing

(1) Select 2D embossing mode and adjust the Intensity to change the image display effect. The engraved result will have a 3D-like appearance.

(2) Tap the Invert Colors button to invert the colors of the image.

6️⃣Magic Eraser

(1) Swipe left on the edit panel and tap the Magic Eraser button to enter the image erasing page.

(2) Adjust Chromatic Aberration to control the range of color recognition. A lower aberration erases only pixels with colors very close to the tapped point; a higher aberration erases a wider range of colors.

(3) Tap the area you want to erase for smart removal. Undo and Redo help you recover from incorrect erasing operations.

7️⃣Outline Extraction

(1) Swipe left on the edit panel and tap the Outline button. The purple solid line on the canvas represents the outline generated.

(2) A positive Offset Distance adds an outer outline; a negative offset adds an inner outline.

(3) If the bitmap background is transparent, you can check "Preserve the internal outline of the bitmap" to add internal outlines to the bitmap.

8️⃣Trace Image

Swipe left on the edit panel and tap the Trace Image button. A purple solid line will appear on the canvas, indicating the vector graphic to be generated (only image formats such as JPG, JPEG, and PNG support the Trace Image function).

9️⃣Crop

(1) Swipe left on the edit panel and tap the Crop button to enter the image cropping page.

(2) Tap Auto‑Cut to remove excess blank space around the image edges.

(3) Tap Rotate to rotate the image by 90°.

(4) Tap Flip Horizontal to mirror the image left‑to‑right.

(5) Tap Flip Vertical to mirror the image top‑to‑bottom.

(6) Drag any corner of the image to scale the crop box.

(7) Tap "Free", then scale the crop box freely.

(8) After reducing the crop box, drag the center area to adjust the area to keep. The area outside the crop box will be removed after tapping Confirm.

1️⃣Text

(1) Tap the Text button at the bottom left to open the text input interface.

(2) Enter the content and tap Confirm. The text will appear on the canvas.

2️⃣QR Code & Barcode

(1) Tap the Text button at the bottom left to open the text input interface.

(2) Select QR Code or Barcode, enter the content, and tap Confirm. The QR Code or Barcode will appear on the canvas. 

Please note that Barcode do not support text input.

1️⃣Font

Tap Font, select the desired font, and the text font will be updated.

2️⃣Style & Alignment

(1) Tap Style, select the desired style, and the text style will be updated. Supported styles include outline, bold, italic, underline, and strikethrough.

2. Tap Align, select the desired alignment (left, center, or right), and the text alignment will be updated.

3️⃣Font Size & Spacing

Adjust the text size, word spacing, and line spacing by entering values in the respective input boxes.

4️⃣Curve

Tap the Curve button to adjust the curvature of the text. Negative values curve upward; positive values curve downward.

5️⃣Arrangement

(1) Tap Horizontal to arrange the text horizontally from left to right.

(2) Tap Vertical to arrange the text vertically from top to bottom.

(1) Tap the Variable templates button at the bottom, then select Variable Text / QR Code / Barcode to open the text input interface.

(2) Variable text supports serial number variables, date variables, and time variables. Users can also import custom variable data from CSV or TXT files.

(1) Tap the Shape button at the bottom to open the shape selection panel.

(2) Select the desired shape. Supported shapes include line, ellipse, rectangle, polygon, star, and heart shape.

1️⃣Fill

(1) Tap the Fill button to convert the shape into a filled effect. Vector formats such as SVG and GCode support fill effects.

(2) Tap the Path Fill button, adjust the line spacing and angle, to turn the fill effect into a striped pattern.

2️⃣Adjustments

(1) For rectangles, you can adjust the corner radius.

(2) For polygons, you can change the number of sides.

(3) For stars, you can change the number of corner and the inner corner depth.

(1) Tap the Graffiti button at the bottom to open the Graffiti interface.

(2) Tap the brush tool to start drawing. Adjust the size to change the thickness of the line.

(3) Tap the Eraser tool to erase parts of the drawing. Adjust the size to change the eraser area.

(4) Tap the ✅ button at the top-right corner to add the drawing to the canvas.

(1) When there are multiple objects on the canvas, tap the Arrange button to adjust their layer order.

(2) Objects on higher layers will overlap those on lower layers.

(3) Arrangement options include: Bring to Front, Bring Forward, Send Backward, and Send to Back.

(1) Tap the width or height input box and enter the desired value. The image will scale proportionally.

(2) Unlock the aspect ratio, then tap the width or height input box and enter the desired value. The image will adjust only the selected dimension.

(1) Tap the X or Y‑axis input box and enter the desired coordinate. The image will move to that position.

(2) Tap the Fine‑Tune button and select the step size (1, 2, or 5). Tap the arrow buttons to move the image by the selected step.

(3) Tap the bottom‑left or bottom‑right button to rotate the image clockwise or counterclockwise.

(1) Undo: Reverts the last action in case of an unintended operation or deletion.

(2) Redo: Restores an action that was previously step of undo.

(1) Tap the Layers button in the bottom‑right corner to open the layers panel on the right side of the screen.

(2) Each created or imported object has its own layer. Tap a layer to locate the corresponding object on the canvas.

(3) Tap the Eye icon to hide or unhide an object.

(4) Tap the Lock icon to lock a object. Locked objects cannot be edited.

(5) Touch and hold the icon on the right side of a layer until a solid line appears around the layer edge, then drag to reorder layers.

(6) Touch and hold a layer briefly can rename it.

(1) Cloud Storage: Save projects to the cloud. When logged into your account on another phone, you can download project files from the cloud to your local device.

(2) Inch: Change the unit of measurement displayed to Inch on the canvas.

(3) Grid: Show or hide the grid on the canvas.

(4) Smart Guides: Enable or disable operation guides in the app.

(1) Tap Exit icon to end preview and return to the canvas.

(2) Tap the button on the right to minimize the preview settings panel. Tap the "Preview" button again to reopen the panel.

(3) Drag the slider to adjust the preview laser brightness.

(4) Measurement Focus: Use a ruler to measure the distance from the bottom of the field lens to the material surface, enter the value in the input box, and tap Confirm. The laser head will adjust its height accordingly to achieve focus.

(5) Tap the Up and Down buttons to adjust the laser head height.

• Short press: Raise or lower by 0.5 mm.
• Long press: Continuously raise or lower; release the button to stop.

(6) Tap the Rect button to display a rectangular preview box on the machine. Tap the Center Point button to display the center point of the engraving pattern.

(7) Tap Next to proceed to the file transition and resolution selection interface.

LDS offers two workflow modes:

(1) New Engraving Settings: Designed for advanced users, supports features such as 3D embossing for more creative possibilities.

(2) General Engraving Settings: Designed for general users.

(1) Tap the Back button to return to the preview page.

(2) Tap the file name input box to modify the file name.

(3) Select the desired resolution. Resolution refers to the number of dots per unit area. Higher resolution means denser dots and smaller spacing, producing finer engraving results and displaying more image detail – but also increasing processing time. Lower resolution helps save processing time. Resolution options vary by machine model. The LP4 supports 1K, 2K, 4K, and 8K resolutions.

(4) Tap Send file to proceed to engraving parameter settings.

Note: Resolution is only available for fill engraving and image engraving types.

1️⃣Line Engraving

Line Engraving mode follows the outline of the design to create line-based marks on the material surface. This mode produces a thin engraving line and is suitable for creating fine patterns, text, or symbolic markings.

Tip: In Line Engraving mode, using a higher power setting combined with a slower speed can achieve a cutting-like effect on certain materials.

2️⃣Fill Engraving

In Fill Engraving mode, the laser performs a line-by-line scanning engraving over the colored areas of the design. This mode is typically used to create uniform, flat textures or large-area filled effects on the material surface.

3️⃣Cuting

Cutting aims to completely penetrate the material, separating the designed shape from the base material. To achieve effective cutting, it is generally necessary to set a higher power and a slower speed.

4️⃣Image Engraving

Image Engraving typically involves converting an image to grayscale and then use the Dithering techniques to simulate grayscale transitions through the arrangement and density variation of the dots, thus achieving a visual color transition effect. This finally forms a pattern with light/dark contrasts and rich details on the material surface. 

(1) Tap the Back button to return to the preview page.

(2) The engraving layer displays the engraving type (Image, Fill, Line, Cut).

(3) Tap Custom to select recommended parameters based on the engraving material.

(4) If the material is not available in the material library, you can set custom processing parameters by entering values. Tap the icon on the right to save the custom parameters.

(5) Laser Type displays the laser source information. The 450 nm blue diode laser is suitable for engraving coated metals, anodized metals, 304 stainless steel, bamboo, wood, leather, food, paper, fabric, photosensitive stamps, plastic, acrylic, opaque glass, glazed ceramics, etc. The 1064 nm laser is suitable for engraving metals, plastic, and synthetic leather.

(6) From left to right are Power, Depth, and Passes settings:

• Power (%): The output power of the laser during processing. Higher power results in deeper engraving or cutting. Value Range: [1, 100].
• Depth：The movement speed of the laser beam. A slower speed means the laser stays longer on the material surface, allowing the material to absorb more energy, resulting in deeper marks. Value Range: [1, 100].
• Passes: The number of times the laser beam follows the processing path over the material. More passes result in deeper marks. Value Range: [1, 255].

(7) Tap the Start button to begin; the machine starts engraving and enters the engraving interface.

(1) After engraving, a prompt appears warning you to be careful of the heat and residual smoke. Tap OK. 

(2) Tap the Creation button to return to the canvas.

(3) Tap Repeat to go back to the engraving parameter settings page.

On the canvas, tap the gear icon in the top‑right corner to open the mode settings window. The settings interface may vary by machine model; the following describes the general functions using the LP4 as an example:

(1) Beeping Sound: When enabled, a beeping sound plays at the start and end of a job.

(2) Outline Preview: When enabled, users can select the Outline Preview option in the preview interface. The laser will then move along the vector path instead of outlining a rectangular box.

(3) Batch Engraving Button: Enable this function after connecting the batch engraving button accessory. The button can then be used to preview and engrave the previous last transferred file.

(4) Red Light Stay: Keeps the dual red dots (used for focusing) constantly lit.

(5) Laser delay: When enabled, it results in a more even engraving effect.

(6) Path optimization: When enabled, engraving paths for vector data are optimized for higher efficiency.

(7) Automatic Device connection: When enabled, the app automatically connects to the machine when it is powered on and not yet connected.

(8) Experimental Features: Enable to set individual engraving parameters for each element, transmit and engrave them separately, and use the material test array function.

(9) Upload Log: Upload software logs to help developers troubleshoot issues.

(10) Firmware Version: Displays the current firmware version of the machine.

1️⃣Close Free Mode

(1) If the protective cover is not connected, Free Mode must be enabled to preview and engrave.

(2) If the protective cover is opened during engraving, the device will pause. To resume, close the cover and tap the Continue button.

(3) When the protective cover is connected, ensure it is properly closed before previewing or engraving.

2️⃣Enable Free Mode

The device no longer detects whether the protective cover is correctly installed and closed.

Note: Although this mode allows the device to operate without a protective cover (Class 4 conditions), it is not recommended for safety reasons. When operating in this mode, you must wear laser safety goggles that meet certified standards, especially when there is a risk of laser beam exposure.

1️⃣ Slab Mode: When enabled, the canvas length extends to 2000 mm, supporting longer flat materials.

2️⃣ Cylinder Mode: Supports engraving cylindrical objects such as wooden rods, water bottles, and cans.

3️⃣ Trolley Mode: An engraving mode exclusive to the LP2, allowing engraving on flat materials with extended length.

1️⃣ Slide Extension Mode

Connect the Slide Extension for engraving. Place the object on the Slide Extension, which replaces the Y-axis movement of the Laser Unit, suitable for engraving larger materials.

2️⃣ Slide Extension Multi-File Mode

The Slide Extension acts as a carrier, moving flat materials to the designated engraving position for multi-file processing.

(1) Switch to the User interface on the main interface.

(2) In My Creations, locate the project saved locally.

(3) Tap the ... icon at the bottom right of the project file and select Sync to Cloudspace.

(1) Switch to the User interface on the main interface.

(2) Open My Creations and tap the My CouldSpace tab at the top.

(3) Tap the desired project file to Download to local, then you can open it in the creation interface (an internet connection is required).

(1) You can download .lp2 project files from Craftzone (https://craftzone.laserpecker.net/) and save them to your phone.

(2) After downloading a .lp2 file, locate it in your phone's file manager, tap the file, and select Open with LaserPecker Design Space.