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Device Settings

Afterwards initial setup, you can access device settings under the Edit > Device Settings menu.

Device Settings Window

Working Size

This is the working size of your laser bed. Set this to the maximum X and Y travel for your light amplification by stimulated emission of radiation. Note that this setting does not affect the light amplification by stimulated emission of radiation itself, information technology's just to tell LightBurn how large the work area of the laser is.

Origin

This is the origin corner or 0,0 location for your laser. If you have a GCode based system, this is almost ever at the front left, regardless of the location of your limit switches.

If yous have a DSP laser, like Ruida or Trocen, the origin is normally where the limit switches are placed, and volition volition exist the corner the laser seeks when powered up.

If your light amplification by stimulated emission of radiation output is mirrored horizontally or vertically, move the dot to the reverse corner, horizontally or vertically, depending on the direction that the output is mirrored, and that will correct information technology.

Laser First

If your laser has a red-dot pointer that is not aligned with your axle, you tin can enable the Laser Outset value to compensate for this when framing and positioning.

Scanning Offset Adjust

Scanning showtime is useful when doing raster or vector scanning at high plenty speeds that delays in your power supply cause the firing betoken to be a piddling backside where it should be. Meet the help for Scanning Offset Aligning here.

Other Options

Notation that this section will appear differently depending on the type of controller you have, and not all settings will appear for all controllers.

Fast Whitespace Scan

When engraving an image, LightBurn unremarkably moves at the same speed across the entire epitome. If you are engraving slowly to get a good burn, but the prototype contains a lot of empty space (white infinite), this takes a long time. With the Fast Whitespace switch enabled, LightBurn will heave the speed through bare areas to the speed you indicate, if it is faster than the current engraving speed. This can save significant time.

A note for Marlin users: Since Marlin treats G0 and G1 moves identically, this value is used to specify the speed for rapid moves. If yous do not prepare this value, LightBurn volition use the same speed as the G1 moves.

Enable $J Jogging

On newer versions of GRBL (1.1 and later) $J is a custom jogging style that has several benefits over normal jogging, which just sends simple G0 or G1 moves. The new jog format does not affect the GCode parser country, and if soft limits are enabled, any jog command that would get out of bounds is simply ignored, without trigging an error or alarm.

This setting also allows cancelling a jog move, which LightBurn uses for Continuous Jog - Y'all press and concord a move pointer to brainstorm jogging in a direction, then release the button to stop (cancel) the jog motility. Continuous Jogging is enabled in the Move Window. The switch to enable Continuous Jogging will non appear unless $J jogging is enabled.

Enable DTR bespeak

Standard serial ports take a pin (Data Last Set up, or DTR) that the host enables to tell modems that software is ready to receive data, and some devices require this signal to brainstorm communication. Many programmable hobby-level controllers, like Arduino based systems, use the DTR pivot to reset the controller. LightBurn usually sets this value for yous, simply if yous find your GCode controller won't communicate, toggling this setting might assistance.

Utilize G0 moves for overscan

By default, all scanning moves emitted past LightBurn are G1 moves, where simply the ability value is varied, for consistent speed and power output. Some controllers, like FabCreator Smoothieware boards, take a not-zip power value for their minimum output, and can end up called-for during the overscan portion of an engraving. Plow on this setting to utilise G0 moves for overscan to eliminate this.

Enable light amplification by stimulated emission of radiation fire button

Diode lasers often don't have a red-dot arrow like CO2 lasers practise, so it is oftentimes useful to enable them at low ability for focusing or framing. (Please do Not exercise this if you lot take a CO2 laser, as the beam is invisible and this could bullheaded you or get-go a burn down). Turning on this setting volition enable a button and a power setting on the Move Window that allows you to plow on the laser at low power for focusing and positioning.

When the 'Fire' button is enabled, you lot tin can agree the Shift cardinal when framing to enable the beam.

Enable Out of Bounds alert

DSP controllers automatically check for out-of-bounds weather, but GCode controllers do not accept advance knowledge of the data being run, and therefore tin can't do this. Enabling this flag will tell LightBurn to warn you if a job volition cause your organization to travel out of premises. Note that this requires your system to have been properly homed, reporting coordinates correctly, and with the workspace size set properly.

Return to Finish Position

When running jobs in 'Absolute Coords' or 'User Origin' mode, enabling this flag tells LightBurn to send the laser to the specified position later a chore is run. This is a convenience to move the laser caput out of the fashion for unloading material.

Due south-Value Max

GRBL and Smoothieware utilize the Due south-Value (spindle speed setting) to control the PWM power output to the laser. This setting is the number that corresponds to 100% power in LightBurn. Smoothieware typically uses a value from 0 to 1 and supports partial numbers in betwixt. GRBL defaults to 0 to 1000 for newer versions of GRBL, or 0 to 255 for older ones. The S-Value Max setting in LightBurn must match your controller setting, or yous'll either get not enough power output (if LightBurn's setting is lower) or very small power numbers will set your laser to full power (if LightBurn's setting is higher). The corresponding setting in GRBL is $30 for the firmware versions that support it.

Baud rate

Not all controllers communicate at the aforementioned charge per unit. The default in LightBurn for GRBL controllers is 115,200 baud (bits per 2d), and for Marlin it's 250,000 baud. Some Marlin controllers use 115,200, and some GRBL controllers become as depression as 9600. If y'all are having difficulty getting your controller to communicate, and you lot're sure the firmware is supported, contact the manufacturer to meet if they tin can tell yous the correct baud rate for the lath - it might exist different than the default.

Z Axis Controls

Enable Z Axis: turn this on to allow LightBurn to control the Z axis of your machine, IE the meridian of the laser above the workpiece.

Note: enabling Z control means that LightBurn volition always emit Z values for a running job, and therefore requires that yous ready either the "Relative Z moves only" toggle beneath, or a material pinnacle value on the principal cut panel. If you to not set relative mode, and do non fix a material height, the default of 0 may cause LightBurn to raise your bed to a indicate where the workpiece could contact the head of your laser.

Reverse Z Direction: Most DSP systems accept 0 equally the highest point, with positive numbers moving the laser head further from the bed, notwithstanding some systems reverse this. Toggle this switch to change the overall direction for Z moves.

Relative Z moves only: This setting tells LightBurn to read the peak of the machine when the job starts, and uses that height as the starting point for all Z moves, ignoring whatsoever specified material height. This is the simplest fashion to work, equally you lot only fix your focus manually, and LightBurn will perform all moves relative to whatever summit your machine is at when the chore starts. Notation: for DSP systems this requires that you lot are continued to the machine.

Optimize Z Moves: By default, LightBurn volition always retract the Z back to the initial superlative (the material height) afterward completing a shape with a Z offset. This is washed for safety. Enabling 'Optimize Z Moves' will prevent this constant retract / plunge beliefs, only issuing Z moves when the Z changes. If y'all know your fabric is flat, and none of the Z moves will position the light amplification by stimulated emission of radiation low plenty to run into anything on your work table, this tin can relieve a lot of time.

Additional Settings

The Additional Settings page contains settings used by the preview simulation engine to calculate acceleration timing, traversal speeds, and enforce speed limits when calculating the time it will take to complete a job, and when simulating the job. These must currently exist set manually past the user to match your controller settings, though our goal is to handle this automatically if possible.