0:00 hey folks it’s been a while so I thought
0:02 it was time to do another LightBurn demo so we
0:06 have a bunch of new stuff in the lightburn
0:08 my folders here DXF support has
0:15 gotten dramatically better
0:17 we now have proper support for DXF
0:22 spline objects so back so as an example
0:27 this file is DXF splines it comes in not
0:33 bad kind of messy the way DXF splines
0:37 work there’s not an easy way to
0:39 translate them into Bezier curves so
0:41 they end up coming in as lots of teeny
0:43 teeny little points this is pretty
0:45 normal and anything like Inkscape or
0:47 other tools do the same thing Lightburn
0:49 however it does have some tools to help
0:52 it so one of the things you can do is
0:55 auto join that allows you to connect
0:59 things that weren’t previously connected
1:02 we also have new optimization tools so
1:06 if I bring up the optimize menu I can do
1:09 a line shape line fit or a arc fit and
1:15 they have nice handy little sliders so
1:17 if you look at these points along here
1:21 for example if I start sliding up the
1:24 arc tolerance they turn into fairly nice
1:27 curves a better place to look actually
1:30 is down here these things would have
1:32 been DX F spline sorry curved objects
1:36 originally if I bring up the optimizer
1:40 all of these shapes over here are
1:44 straight lines and they’ve got any like
1:46 random points in the Middle’s of them so
1:48 if I turn up the line fitter just a tiny
1:51 tiny little bit you can see then almost
1:53 all of those go away and then ditto for
1:55 the arc fit turn that up just a tiny
1:58 little bit and these things turn back
Video Transcript for LightBurn Splines and Optimize Tools (Cont…)
2:00 and displaying handles and so this whole
2:02 file goes from being sixty six hundred
2:04 points down to eighteen hundred points
2:05 which makes it a lot easier to work with
2:08 also some of the stuff in here has
2:11 really
2:11 scale changes so this text here the
2:14 rubber gun this is really small it’s
2:17 only a couple millimeters high whereas
2:21 the overall shape is quite large so you
2:24 don’t want to apply the same level of
2:27 optimization to this shape as you do to
2:30 the overall shape and so you can mix and
2:34 match you kind of select different
2:35 pieces turn the optimizer up really hard
2:37 for some down really low for others and
2:39 so on but generally speaking it works
2:41 quite well it makes all of your shapes a
2:43 lot easier to work with so DXF splines
2:47 and the optimize and join tools I’ve
2:51 added hotkeys for those things to make
2:54 them easier to work with but the cool
2:57 feature of this whole thing is just the
2:59 interactive nature of it if I’ve got an
3:01 object like this that’s got a lot of
3:05 curves or sorry a lot of points in it
3:07 the interactive optimizer makes it
3:12 really nice to figure out kind of a
3:14 happy medium like where your where your
3:17 good points are so if I turn it up too
3:21 high you can see that it gets pretty
3:23 chunky you obviously don’t want that but
3:26 you can count you can see what the point
3:27 counts are over here so turn it up just
3:29 a tiny tiny little bit and you can see
3:31 that the numbers change quite a bit
3:32 turn up the arc fitter a little and you
3:35 can see that the points drop off quite a
3:36 bit more if i zoom in on this now this
3:41 thing still looks like it did but it’s a
3:43 lot less heavyweight it’s a little
3:45 easier to know to edit things like that
3:47 and you can really see it when you do
3:50 something like this if I create a circle
3:52 for example normally a circle is just
3:58 these tangent handles if I tell lightburn
Video Transcript for LightBurn Splines and Optimize Tools (Cont…)
4:00 to convert this object into a cut
4:03 what I end up with is lots of little
4:06 points and so that’s the kind of thing
4:08 that you’ll often see with imported
4:10 shapes from other tools so running the
4:14 optimizer
4:18 I’m running the wrong thing I just added
4:21 the hotkeys and I still don’t even know
4:22 them myself so turn up the arc fitter
4:27 and within just a couple of a couple of
4:30 bumps of the slider you’ve gone from 128
4:33 points down to 7 6 whatever and so
4:37 that’s a much lighter weight object and
4:39 if you look at the 2 dropped over top of
4:41each other they’re basically identical
4:43it does a really good job of recovering
4:45 the curves Oh what else so I added a new
4:52 type of image dithering the important
4:56 Stello here the size a little bit make
5:01 it more manageable the typical setting
5:08 you would use for a continuous tone
5:10 picture like this would be the regular
5:13 kind of noise to the room if I convert
5:16 this to a cuts which lets me see what
5:19 lightburn does to the points you can
5:22 see there’s a few little straggling bits
5:24 out here lines that’s pretty common for
5:27 error diffusers dithering if you’ve got
5:30 pictures that have a really or that have
5:33 really large chunks of solid color you
5:37 end up with these kinds of patterns in
5:39 them sometimes there’s not really much
5:40 that you can do about it however with
5:43 the ordered path toning or dithering
5:49 what you end up with is this so still a
5:55 few little scattered points there but
5:56 they’re not nearly as as eye catching
5: 59 because they’re not in a line so the
Video Transcript for LightBurn Splines and Optimize Tools (Cont…)
6: 02 overall pattern is more ordered and
6:04 consistent this isn’t going to be a
6:07 great choice for everything but it is a
6:09 good choice for some things some
6:12 pictures and so it was nice to be able
6:13 to include it what else
6:18undo undo forever
6:24 those are the two biggest features done
6:27 a couple alone I actually wanted to show
6:31 one more thing let me bring that picture
6:34 back in bring this one back the preview
6:42 window has gotten a time estimate now so
6:46 bring up the preview you can see here
6:49 down in the bottom tells you how much
6:52 distance you’re going to be cutting how
6:54 much distance you’re going to be moving
6:56 and then what the overall estimated time
6:58 is so it thinks it’s going to be about a
7:00 minute to do the cut
7:02 based on the current speeds that I’m
7:04 using that seems about right for this
7:07 thing this is a total wild guess it’s
7:11 entirely based on with the speed that
7:13 you said is and a guess on what your
7:17 rapid moves are it doesn’t take into
7:19 account acceleration or deceleration but
7:23 it’s not terrible and it’ll give you a
7:25 ballpark at least I’ve also set it up so
7:28 that you can double-click the window and
7:31 expand it up you can also now zoom in
7:33 and pan around in here like you can with
7:35 the Edit window which you couldn’t
7:36 before so that makes it a lot more
7:38 useful because you can zoom in on stuff
7:41 that actually makes it quite a bit more
7:44 useful for image cuts so I go back to
7:47 Abbot and Costello here and change these
7:50 guys to be a little smaller generated
7:54 generator cut from that we’ll just do
7:56 the preview so this is the preview
7:58 window that gets produced from that you
Video Transcript for LightBurn Splines and Optimize Tools (Cont…)
8:01 can see these here on the sides are my
8:03 overscan cuts I can turn off the
8:07 traversal moves so you know you’re just
8:09 seeing what the pattern is that it’s
8:11 going to generate but you can zoom in
8:13 and pan around and see much better with
8:17 the shading is going to look like so
8:18 this is useful for image cuts where
8:20 before you end up with stuff like this
8:22 if your cut density was really high if I
8:26 set the DPI setting to be say 450 I go
8:32 back to my preview normally the preview
8:36 would look fairly dense like this
8:38 and sometimes with really dense cuts or
8:40 really dark images it’s hard to see the
8:42 detail so having the ability to zoom in
8:44 really helps out a lot
8:49 that’s the biggest stuff we’ve got a
8:52 couple more devices in the device
8:54 profile I’ve added Marlin support that’s
8:57 still being tested I’ve added fab kit
9:00 support which is also still being tested
9:05 oh no editing this is something that’s
9:09 actually gone in or been being improved
9:12 still pretty terrible but it’s not as
9:15 bad if I convert this object to a path
9:19 so I just made myself this square go
9:22 into the node editing so you could do
9:25 this before and you know I’ve had a line
9:28 tool here for a while where I could
9:30 create lines and do stuff like that but
9:32 it was never great you can now change
9:34 your selection while you’re in node at
9:37 mode which you couldn’t before and the
9:39 latest greatest tool that I’ve got is I
9:41 can click on a point hit s to smooth it
9:43 this is fairly useful helpful for making
9:48 smooth shapes because I don’t currently
9:50 have a tool that will let you draw
9:52 freehand I’m going to be shoring up the
9:56 line editing kind of over the next
9:59 little while to the node editing over
Video Transcript for LightBurn Splines and Optimize Tools (Cont…)
10:00 the next little while because it needs a
10:02 lot of love still but that helps quite a
10:06 bit just the ability to change your
10:08 selection while you’re in that mode
10:09 moving around I think that’s about it
10:13 thanks for watching
