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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Video Resource Files for Lightburn Camera Features

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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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0:00 one of the things that gets asked

0:02 frequently in the forums about lightburn

0:03 is why do we keep mentioning the

0:06 camera what do you need a camera for

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

0:10 lightburn work with a camera to give

0:14 you a demonstration of what you can use

0:16 the camera for in lightburn let’s

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

0:22 old child who is obsessed with Star Trek

0:25 and they like to draw so your

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

0:33 a picture that looks like that and you

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

0:39 do something with this with my laser

0:41 so you open light bar

0:45 after having the camera calibrated in a

0:48 line which we will talk about in a

0:50 separate video

0:51 you go to the camera control window and

0:54 with your drawing placed somewhere on

0:56 the laser bed you click update’ overlay

0:59 lightburn has taken this snapshot view

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

1:05 bed of the machine and unwarped it so

1:09 it’s removed all of the fisheye

1:11 distortion and turned this drawing into

1:15 a backdrop in lightburn and now with

1:18 that backdrop in lightburn from the

1:20 camera control window you can click

1:22 trace if you adjust your thresholds

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

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

1:32 pretty much good to go right from the

1:34 beginning click OK

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

1:39 captured a bunch of other crap with it

1:40 that I don’t want however that’s

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

1:46 to with this selected ungroup

1:51 select everything

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

1:59 unselect these things in the middle hit

Video Transcript for Lightburn Camera Features (Cont…)

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

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

2:08 together if I turn the backdrop back on

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

2:14 well with my background now I could just

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

2:20 here already and that would work what

2:25 might make more sense would be to take

2:27 this and maybe do an offset around it

2:32 something like this and cut out the

2:34 offset so that you know we have this

2:36 design sitting on the piece of paper and

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

2:41 something a little bit more fancy going

2:45 to

2:46 my capture window again just so that you

2:48 can see what I’m doing

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

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

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

3:07 adjust my focus and burn this image onto

3:11 that slate so back to my camera control

3:15 window update the overlay you can see

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

3:21 design if I take this

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

3:32 smaller

3:41 roughly centered

3:45 go over to my cut window choose speeds

3:48 and powers that are appropriate

3:54 probably want

3:56 interval a little

3:59 let’s do 200 millimetres a second

Video Transcript for Lightburn Camera Features (Cont…)

4:03 sent power

4:07 to scan all shapes at once

4:10 it okay have a look at my preview

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

4:18 the lid burn this

4:30 something you’ll also notice is that

4:33 it’s possible to use the camera

4:35 controlled view to monitor the job in

4:38 the laser this is actually the same

4:41 camera that I have mounted inside when

4:44 my lid is open the cameras looking

4:46 straight down when my lid is closed the

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

4:51 still useful even when the lid is closed

5:18 and so I just updated the overlay and

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

5:27 the vectors are our design and the

5:32 the white in behind it is actually what

5:35 was just cut onto that coaster by

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

5:42 alignment is pretty good

5:44 that’s probably within a half a

5:46 millimetre and to be clear my laser lid

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

5:54 they currently have a light mounted to

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

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

5:59 touch but this is relatively normal and

Video Transcript for Lightburn Camera Features (Cont…)

6:04 actually quite good

6:11 and there with my hands touching the lid

6:14 to compensate for the weight of that

6:17 lamp you can see that the alignment gets

6:20 quite a bit better but even moving the

6:21 lid just a little bit affects the

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

6:27 important to make sure that your lid

6:29 stops are fixed your camera is mounted

6:32 in a continuously fixed location where

6:34 you may need to calibrate again once in

6:36 a while

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