4. Run & Burn

The Execute page is the control center for your laser cutter. Here you connect to your machine, position the laser, and run the G-code tasks.

warning Safety First: Always follow laser safety guidelines when operating your machine.
menu_book Read the Manual: For your safety, read and follow all instructions in your laser cutter’s user manual.
stop_circle Emergency Stop: Make sure you are trained to stop the machine safely in an emergency.
door_front Enclosure: If your machine has an enclosure, always close it before starting a job.
eyeglasses_2 Eye Protection: Wear laser‑rated safety glasses appropriate for your laser’s wavelength.
person_alertStay Present: Do not leave the machine unattended while the laser is active.
air Ventilation: Ensure proper ventilation — laser cutting can produce toxic fumes.
fire_extinguisher Fire Hazard: Have a fire extinguisher within reach.
visibility_off Eye Damage: Even brief exposure to laser light can cause permanent blindness.

Connecting to Machine

The connection process differs slightly based on whether you are using the cloud version or the Desktop App.

Connection options in the online app — only USB (COM) is supported — In the online app, connection is possible only through USB (COM).

Connection options in the Desktop App — USB (COM), Ethernet, or WiFi — In the Desktop App, connection is possible over USB (COM), Ethernet or WiFi.

Serial Connection (USB)

Select the correct Serial Port and Baud Rate (usually 115200 for GRBL).
Click Connect. The status indicator will turn green once the connection is established.

Network Connection (WiFi / Ethernet)

In the Desktop App, you can connect over the local network to machines running FluidNC or grblHAL.

Auto-Discovery – Click the Find Machine (wifi_find) button. The software will scan your network using mDNS and list available controllers.
Manual IP – If discovery fails, you can enter the machine's IP Address manually.
Protocol – Choose FluidNC (WebSocket) or TCP/Telnet (port 23) depending on your controller's firmware.

Machine Controls (Jogging)

Use the jog controls to move the laser head manually:

X and Y Arrows – Move the laser across the material.
Keyboard shortcut: Arrow keys
Z Arrows – Move the laser head up or down (for machines with motorized Z-axis).
Keyboard shortcut: Page Up / Page Down keys
Home Machine (home) – Triggers the $H homing sequence to find the machine's physical limits using limit switches.
Keyboard shortcut: Home key
Soft Reset (restart_alt) – Sends a Ctrl-X command to the controller to clear errors or stop a movement immediately without disconnecting.
Keyboard shortcut: Ctrl+X
Step – Choose how far the laser moves with each click (0.1 mm to 50 mm).
Keyboard shortcut: Ctrl + Left and Right keys
Set Zero (my_location) – Set the current position as the temporary work origin (X=0, Y=0). This is usually where the bottom-left corner of your project starts.
Keyboard shortcut: Ctrl+0.
Go to Origin (0,0) – Move the laser head to the current work origin.
Keyboard shortcut: 0.
Go to Position (drag_pan) – Enter specific X, Y, Z coordinates to move the laser head relative or absolute or set specific offset from the work origin in selected coordinates.
Coordinate System (G54 etc.) – You can select several coordinate systems (G54, G55, G56, etc.). It might be useful if you use multiple fixtures. G53 represents the machine coordinate system given by homing, so its offset or origin cannot be changed.

Dekupeo Machine Controls — Machine Controls interface.

Running G-code

Once your G-code is loaded (via the Generate page or manual upload), you can run it. Only the active G-code file will be executed. You can switch between files using the file selector at the top of the page.

3D Viewer – Use the viewer to verify the toolpaths. You can rotate (left-mouse button), zoom (scroll wheel), and pan (right-mouse button) to inspect the design.
Outline (Frame) – Click the Outline button to move the laser head along the bounding box of your job (with the laser off or at very low power). This helps you verify that the design fits on your material and is correctly positioned.
Start Job – Click the Play button (play_arrow) to begin the cutting/engraving process.
If you're connected via Wi-Fi or Ethernet and SD card support was detected, by pressing (arrow_upload_progress) you can upload the G-code to the machine's internal storage and run it directly from there, which can improve performance and reduce stuttering for complex jobs.
Pause/Stop – You can pause the job at any time or stop it completely if you notice an issue.
Overrides - Allows you to adjust feed rate laser power during gcode execution.

Dekupeo G-code Execution on USB (COM) connection — G-code execution interface for USB (COM) connection.

Dekupeo G-code Execution on Ethernet/Wi-Fi connection — G-code execution interface for Ethernet/Wi-Fi connection with Upload & Play button.

SD Card Explorer

If machine compatibility (GrblHal, FluidNC) is detected during connection, you can use the SD Card Explorer to manage files on the machine's internal storage. Possible actions include:

View stored files on the SD card.
Run G-code from stored files on the SD card.
Delete files.
Upload G-code files from your computer to the SD card (if connected via Wi-Fi or Ethernet).

Dekupeo SD Card Explorer — If machine supports SD cards, use the icon (sd_card) located close to Dekupeo logo to access the SD Card Explorer.

info

Motion stuttering? Often caused by buffer starvation due to too many small moves, e.g. in raster engraving. To fix:

Run from SD card to bypass USB/Wi-Fi latency.
Lower DPI or reduce Engraving/Travel speeds in the Generate page to simplify the G-code stream.

Advanced Features

Z-Probe (vertical_align_bottom) – If your machine has motorized Z axis and a Z‑probe, you can use it to automatically locate the top of the workpiece or the machine bed and set an accurate Z‑zero.
Console – A terminal where you can see the raw communication with the GRBL controller and send manual G-code commands.