--- title: How to Use the Resize Slots Tool in LightBurn description: Learn how to use the Resize Slots tool in LightBurn to adjust slots, tabs, and fingers for different material thicknesses or rescaled designs. --- [Skip to content](https://support.salasers.com/resize-slots-tool-lightburn#main-content) English Show submenu for translations [Submit a Ticket](https://support.salasers.com/kb-tickets/new?hsLang=en) ![MicrosoftTeams-image.png\]](https://support.salasers.com/hs-fs/hubfs/Logos/MicrosoftTeams-image.png?height=50&name=MicrosoftTeams-image.png) Open main navigation Close main navigation - English Show submenu for translations - [Submit a Ticket](https://support.salasers.com/kb-tickets/new) - Go to salasers.com Go to salasers.com Hello. How can we help you? - There are no suggestions because the search field is empty. 1. [SA Laser Knowledge Base](https://support.salasers.com/?hsLang=en) 2. [Tools & Features](https://support.salasers.com/tools-features?hsLang=en) 3. [Layout and Design](https://support.salasers.com/tools-features?hsLang=en#layout-and-design) # How to Use the Resize Slots Tool in LightBurn ## Adjust Slot and Tab Dimensions for Precise Assembly ### What Is the Resize Slots Tool? The Resize Slots tool adjusts the dimensions of slots, fingers, or tabs in selected objects. This tool is ideal for adapting designs to different material thicknesses or correcting dimensions after resizing an entire design. --- ### Location **Menu Path:** Tools → Resize Slots in Selection --- ### Applications - Adjust jointed designs for materials of varying thicknesses. - Correct slot and tab dimensions in rescaled designs. - Refine 3D puzzle pieces, trays, boxes, or other jointed projects. --- ### Types of Geometry Supported 1. **Slots:** Found in 3D puzzles or trays, resembling halved joints or dados. 2. **Tabs:** Commonly seen in tenons or box joints, used for boxes and drawers. ![QuickRef-ResizeSlots](https://support.salasers.com/hs-fs/hubfs/QuickRef-ResizeSlots.gif?width=688&height=516&name=QuickRef-ResizeSlots.gif) --- ### How to Use the Tool 1. **Measure Existing Slots or Tabs:** - Use the **Measure Tool** to determine the current length of a slot or tab. ![Ref-ResizeSlots-MeasureTab](https://support.salasers.com/hs-fs/hubfs/Ref-ResizeSlots-MeasureTab.gif?width=688&height=387&name=Ref-ResizeSlots-MeasureTab.gif) 2. **Open Resize Slots:** - Select all objects containing slots or tabs to resize. - Navigate to **Tools → Resize Slots in Selection** to open the Resize Slots dialog. ![Ref-ResizeSlots-Settings](https://support.salasers.com/hs-fs/hubfs/Ref-ResizeSlots-Settings.png?width=365&height=242&name=Ref-ResizeSlots-Settings.png) 3. **Configure Settings:** - **Old Material Thickness:** Enter the current length of the slots or tabs. - **New Material Thickness:** Specify the desired length. - **Tolerance:** Add padding to accommodate minor variations or kerf offsets in the original design. 4. **Adjustments Options:** - **Adjust Slot Depth:** Modifies the innermost line of slots while maintaining the outer dimensions of the piece. - **Adjust Slot Width:** Changes the sides of slots, ideal for intersecting interior slots. - **Adjust Tab Height:** Modifies the top line of tabs to preserve the interior size while altering the exterior dimensions. 5. **Apply Changes:** - Click **Apply** to implement changes without exiting the dialog. - Click **OK** to confirm changes and exit. - Click **Cancel** to discard any unsaved changes. 6. **Revert Changes:** - Use **Ctrl/Cmd+Z** to undo changes after exiting the Resize Slots dialog. ![Ref-ResizeSlots-Demo](https://support.salasers.com/hs-fs/hubfs/Ref-ResizeSlots-Demo.gif?width=688&height=387&name=Ref-ResizeSlots-Demo.gif) --- ### Troubleshooting 1. **Internal Slots Not Resized:** The tool doesn’t support resizing internal slots, as determining the direction of adjustment can be ambiguous. 2. **Grouped Objects:** - The tool only works on ungrouped objects. - Exit the dialog and **Ungroup** objects if you see a warning. ![Ref-ResizeSlots-GroupedWarning](https://support.salasers.com/hs-fs/hubfs/Ref-ResizeSlots-GroupedWarning.png?width=688&height=144&name=Ref-ResizeSlots-GroupedWarning.png) 3. **Filleted or Rounded Corners:** - The tool requires sharp corners. - Use the **Radius Tool** to remove external fillets and the **Offset Tool** (set to 0) to remove internal loops. 4. **Improperly Formed Shapes:** - Extra nodes or curves in shapes can interfere with detection. - Use **Optimize Selected Shapes** to repair problematic shapes. ![Ref-ResizeSlots-BadSlots](https://support.salasers.com/hs-fs/hubfs/Ref-ResizeSlots-BadSlots.png?width=688&height=414&name=Ref-ResizeSlots-BadSlots.png) --- ### Practical Tips - **Precision:** Measure slot dimensions accurately before applying changes. - **Experiment with Tolerance:** Adjust tolerance settings for better results when slots or tabs vary slightly. - **Refine Shapes First:** Clean up designs using tools like Optimize Selected Shapes to ensure smooth adjustments. The Resize Slots tool simplifies adapting designs for various materials or correcting scaled objects, ensuring precise assembly and professional results in laser-cut projects. - [Lightburn](https://support.salasers.com/lightburn?hsLang=en#main-content) - [Lightburn For Galvo (Fiber)](https://support.salasers.com/lightburn?hsLang=en#lightburn-for-galvo-fiber) - [Lightburn For Gantry (Co2,RF)](https://support.salasers.com/lightburn?hsLang=en#lightburn-for-gantry-co2rf) - [Fiber (Galvo) Lasers](https://support.salasers.com/fiber-galvo-lasers?hsLang=en#main-content) - [Troubleshooting](https://support.salasers.com/fiber-galvo-lasers?hsLang=en#troubleshooting) - [Co2 Lasers](https://support.salasers.com/co2-lasers?hsLang=en#main-content) - [Razor Series](https://support.salasers.com/co2-lasers?hsLang=en#razor-series) - [Troubleshooting](https://support.salasers.com/troubleshooting?hsLang=en) - [EzCad 2](https://support.salasers.com/ezcad-2?hsLang=en) - [How-To Guides](https://support.salasers.com/how-to-guides?hsLang=en) - [Explainers](https://support.salasers.com/explainers?hsLang=en) - [Tools & Features](https://support.salasers.com/tools-features?hsLang=en#main-content) - [User Interface](https://support.salasers.com/tools-features?hsLang=en#user-interface) - [Essential Functions](https://support.salasers.com/tools-features?hsLang=en#essential-functions) - [Layout and Design](https://support.salasers.com/tools-features?hsLang=en#layout-and-design) # San Antonio Laser SALasers.com Help Center Copyright © 2026, San Antonio Laser