I have been messing around with the 7W J-Tech Laser and Lightburn and come across an issue I can’t seem to find an answer for…When I start the job, the Z axis moves away from the zero point for the burn. The laser fires and on occasion I can get some ugly burn but it isn’t consistent and is generally between 0.25in-1.5inch away (on top of the 1/8th from the provided spacer). I know it is a setting somewhere but I can’t seem to find it.
Lightburn 1.0.04 - Device settings: 32x32, Enable Out of Bounds, Return to Finish, M8, 255 S Max
Onefinity v1.0.8 - Tool: PWM Spindle, max 255, min 0, pwm min 1, pwm max 99.99, pwm freq 1000, rapid auto off check, dynamic power check
UPDATE: Added images to show what laser is doing
Setting zero in Z axis
Laser running very high
Height of laser
As I mentioned above, this is an inconsistent height…I’ve seen as high as 1.5in…this example is 0.35 above Z zero setpoint