LightBurn Demo 13 – The Camera

The Lightburn Software Series

The Lightburn Software is probably the best generic laser cutting software available (I use it for almost all of my laser work). This series has tutorials, hints and tips as well as the occasional speed comparisons between it and RDWorks. In this video session we get a demonstration of the LightBurn camera features. My thanks to the team at Lightburn for allowing me to embed their videos.

Contents

A demonstration of the camera features in LightBurn

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External Resource Links for Lightburn Camera Features

https://lightburnsoftware.com/pages/trial-version-try-before-you-buy

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Lightburn Camera Features - Engraving A Pebble
Lightburn Camera Features – Engraving A Pebble

Video Transcript for Lightburn Camera Features

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0:00one of the things that gets asked

0:02frequently in the forums about light

0:03burn is why do we keep mentioning the

0:06camera what do you need a camera for

0:09what do you use a camera for how does

0:10light burn work with a camera to give

0:14you a demonstration of what you can use

0:16the camera for in light burn let’s

0:19imagine that you have a five or six year

0:22old child who is obsessed with Star Trek

0:25and they like to draw so your

0:30five-year-old comes to you and hands you

0:33a picture that looks like that and you

0:38think to yourself wouldn’t it be fun to

0:39do something with this with my laser

0:41so you open light bar

0:45after having the camera calibrated in a

0:48line which we will talk about in a

0:50separate video

0:51you go to the camera control window and

0:54with your drawing placed somewhere on

0:56the laser bed you click update’ overlay

0:59light burn has taken this snapshot view

1:02of the bed of the camera are sorry of

1:05bed of the machine and unwarped it so

1:09it’s removed all of the fisheye

1:11distortion and turned this drawing into

1:15a backdrop in light burn and now with

1:18that backdrop in light burn from the

1:20camera control window you can click

1:22trace if you adjust your thresholds

1:26accordingly I’m going to zoom in here on

1:30the drawing it actually looks like it’s

1:32pretty much good to go right from the

1:34beginning click OK

1:35I’ve captured that background now I’ve

1:39captured a bunch of other crap with it

1:40that I don’t want however that’s

1:43relatively easy to deal with I’m going

1:46to with this selected ungroup

1:51select everything

1:54and then use the ctrl key with shift to

1:59unselect these things in the middle hit

Video Transcript for Lightburn Camera Features (Cont…)

2:02the Delete key and now I have just the

2:06drawing I’m going to regroup these back

2:08together if I turn the backdrop back on

2:12you can see that this now lines up quite

2:14well with my background now I could just

2:17cut this out of the paper that I have

2:20here already and that would work what

2:25might make more sense would be to take

2:27this and maybe do an offset around it

2:32something like this and cut out the

2:34offset so that you know we have this

2:36design sitting on the piece of paper and

2:38that would work too but I’m going to try

2:41something a little bit more fancy going

2:45to

2:46my capture window again just so that you

2:48can see what I’m doing

2:53so I have a coaster it’s made of slate

2:58or something I’m assuming I got it at a

3:02home store like Target I’m going to

3:07adjust my focus and burn this image onto

3:11that slate so back to my camera control

3:15window update the overlay you can see

3:20the co-star sitting there next to my

3:21design if I take this

3:27move it over going to make it just a bit

3:32smaller

3:41roughly centered

3:45go over to my cut window choose speeds

3:48and powers that are appropriate

3:54probably want

3:56interval a little

3:59let’s do 200 millimeters a second

Video Transcript for Lightburn Camera Features (Cont…)

4:03sent power

4:07to scan all shapes at once

4:10it okay have a look at my preview

4:13preview looks good I’m going to close

4:18the lid burn this

4:30something you’ll also notice is that

4:33it’s possible to use the camera

4:35controlled view to monitor the job in

4:38the laser this is actually the same

4:41camera that I have mounted inside when

4:44my lid is open the cameras looking

4:46straight down when my lid is closed the

4:48camera is looking across the bed so it’s

4:51still useful even when the lid is closed

5:18and so I just updated the overlay and

5:21now you can see if I turn off the fade

5:27the vectors are our design and the

5:32the white in behind it is actually what

5:35was just cut onto that coaster by

5:39said this not to show you can see the

5:42alignment is pretty good

5:44that’s probably within a half a

5:46millimeter and to be clear my laser lid

5:52wobbles a little bit when it’s up and

5:54they currently have a light mounted to

5:56it to get this view a little better so

5:58it’s throwing the calibration off just a

5:59touch but this is relatively normal and

Video Transcript for Lightburn Camera Features (Cont…)

6:04actually quite good

6:11and there with my hands touching the lid

6:14to compensate for the weight of that

6:17lamp you can see that the alignment gets

6:20quite a bit better but even moving the

6:21lid just a little bit affects the

6:24overlay alignment a fair amount so it’s

6:27important to make sure that your lid

6:29stops are fixed your camera is mounted

6:32in a continuously fixed location where

6:34you may need to calibrate again once in

6:36a while

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Last updated August 26, 2021

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