dos anybody have problem with Pass-through option in lightburn.
Normaly when i adjust a image in lightburn the image burntime is
say 9 minutes
when i use the Pass-through option the burntime is 44 minutes ?
and the laser speed is incredible slow
i mate the photo in gimp , greyscaled it
import it to imag-R.com and rezised it to 254dpi
import it again and selected the norton black slate.
opent in lightburn en selected the Pass-through option
image layer speed = 4500/30
Did you resize the image after bringing it into LightBurn? If you’re using pass-through it means LightBurn sends every pixel in the image as is, with no internal processing at all.
If you have pass-through off, it means that LightBurn will resize the image to the output size and DPI you’ve chosen, and dither it at that resolution.
If you have pass-through on and you took an image that was 8x10" at 254 DPI, and resized it down to 4x5", the DPI would double because LightBurn is still sending every pixel.
Doubling the DPI would also mean doubling the number of lines to process, taking twice as long as an image that size normally would.
If you are using pass through, making the image smaller after dithering it increases the DPI, and the number of GCode commands to be processed. If you made it small enough, you’ll basically choke the controller because it’s unable to process the code fast enough.
This is quite common, and one of the reasons we recommend people use the image processing built in to LightBurn, instead of apps like ImagR. It’s much easier to resize and adjust within LightBurn itself than constantly going back and forth to a website, uploading, changing, downloading, importing, over and over again.
I normaly use lightburn.
But seeing on YT a movie from a Australian guy about a slate photo that looks awesome and want to try it because it was better then in lightburn and it was consistent to reproduce it.
img-r have to work properly also in lightburn what i see on YT
But im gonna check the resolution to see if thats the problem. If not i gonna film the problem.
img-r does work well. I have also had the same or better using lightburn for images.
The thing you have to realize is the stuff you see on youtube is not there first shot at the burn. They do many trials so they can get it right for the video.
To assist with further details around our ‘Adjust Image’ tool, below is a link to our documentation covering this topic.
Additionally, starting here: Image Mode - LightBurn Software Documentation, you can read about the different ‘Image Modes’ available, which can alter the resulting output considerable. Worth review.
