LightBurn Tips - Fixing GRBL Intensity Problems!

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In this episode, we will show you how to properly set the intensity values inside of LightBurn to match those of GRBL. As in the example my GRBL based laser was only outputting 1/4 of the power when set to 100% (i.e. S1000). At first we though it to be hardware issue however doing some digging we found the S-Max Value and it was set to 255 approximately 25% of the actual max value (i.e. $30=1000) which GRBL understood to be the maximum. So if your having issues with your GRBL based laser under performing this, is the first place I would suggest looking!
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Опубликовано:

6 ноя 2020

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Комментарии : 64

@stacksmann 3 года назад

Thank you I am new to lightburn and been chasing my tail for three days trying to figure this out! thumbs up and a new follower!

@StreetX1983 Год назад

A big THANK YOU! Min 1:10 made all my problems disappear! You saved my day and I am a very happy man now :)

@kamelb4224 Месяц назад

Thank you!!! You saved my time... That's my 1st week with LB and I was close to give up 😱

@reddsmorris7053 5 месяцев назад

I am a newbie and this fixed my laser. Thank you

@PeterWood 9 месяцев назад

Amazing, thank you! I just quadrupled my laser power (or at least it feels that way) thanks to this video. Kudos and thanks again!

@jaiho5857 8 месяцев назад

Thanks… great help especially I upgraded my k40 to run a monport board . Thanks

@dseghobbies Год назад

You're awesome!!! that fixed my intensity issue

@FRANKSMITHIII Год назад

Thank you. Will give this a try!

@houndazs 3 года назад

I wanted to say thank you for all your videos! Thanks to you, I now have a 3-D printer on it's way.......

@DIY3DTECHcom 3 года назад

That is awesome!

@houndazs 3 года назад

@@DIY3DTECHcom Yea especially since wife approves :). Now back to learning Autodesk Fusion 360....

@mrpdude84 3 года назад

The amount of times I have to type this walk through on the ortur laser group. At least twice a day!

@DIY3DTECHcom 3 года назад

LOL! :-)

@YossyKristy Месяц назад

great video. I have a problem with laser neje 3 + mac ios 13 + lightburn (trial). I designed a circle but the final result is ouval. where and what should I do to setting this ? thanks

@maychilimails4131 2 года назад

Hello, I have an 80watts diode laser grbl 1.1 and when I want to put the pause the travel stops but the laser is still on. The laser keeps burning in the same place and makes a hole. Please help me. Thank you very much ☺️

@gasdia10 3 года назад

when I type $$ it only says: "ok", it doesn`t show all that!

@rafaelalarcon8299 8 дней назад

I have a question my laser burns for the beguining but the stops it keeps going though like it’s burning but no laser

@timd5597 Год назад

Need help please, new with lightburn just trying to burn 10mm x 10xmm box but coming out 10 x 23mm rectangular any way to correct?

@jarodmorris611 2 года назад

I bought a used 15,000MW universal blue laser. It worked okay but then I replaced the diode with an A40640. Then trying to get it to work with the existing control board was less than fun. So I scrapped the mainboard and am using an arduino uno with shield and DRV8825 controllers. I'm having issues getting it to fire the laser at all. I think the issue is in the config.h file to swap around the Z+ limit to be the PWM (from pin 11 or 12). Do you have any videos addressing this already?

@ThomasYates916 2 года назад

What did you do to see the devices current settings in the console? I don't know how to do that.

@maychilimails4131 2 года назад

Hola. Podrás ayudarme? Tengo un láser 80w Grbl 1.1 y no me funciona la pausa en lightburn, cuando la presionó se detiene el recorrido pero el láser no se apaga y sigue quemando en el mismo lugar 😭 y deja un agujero. Cómo puedo solucionarlo? Muchas gracias 😊

@jayvaccaro4120 2 месяца назад

I am having a problem with Alarm 3 Reset while in motion.GRBL cannot guarantee position. Lost steps are likely. Rehoming is recommended which I did. ON or near Line 0. Please help!

@shawncotton356 2 года назад

My setting are set like this but I still don't get the power that I should. Works fine in lasergrbl with the same setting

@rossdeglow88 2 года назад

OMG, Thank You.

@CHWDLLuntkowi 11 месяцев назад

Hi, i have problem with my SCULPFUN s30 pro max i have 900x900 work area and laser loses steps i dont know what i must to do

@rassski1 2 года назад

Thanks for this video, now I got full power. Do you have a video for listing the correct $ codes, my Atomstack A5 M50 is not conforming with the size of my X410 Y400mm, second is my laser doesn't start when I press start, would appreciate if you could direct me to one of you video for this problem with lightburn. Thanks again for all your videos.

@BGA1111 Год назад

Perfect. Fixed from 1st try 👋👋👋

@asmatdcdolman8498 3 года назад

thanks mate

@FyteFyre Год назад

I did this on my Atomstack X7 Pro. $30 showed 1000 so I changed it in Lightburn and the laser was burning way too hot like it was locked at 100% even if I had it at 10% power on the layer settings. Not sure what is going on.

@Elmojomo 2 года назад

Thanks for the brief, concise video! However, I checked my settings and they match, but still can't burn anything with LB. LaserGRBL works fine, so I know the laser is functional. Any ideas?

@robertarmstrong2323 Год назад

Same..I haven't tried laser grbl but I can't burn anything in lb

@silhy37 Год назад

Do you know why I'm not seeing $30 on my GRBL settings?

@xALK1984x 2 года назад

My ortur laser master 2 have laser point like beveled. Is very frustrating

@carlsmith3817 2 года назад

My problem is the Laser( Ortur Laser master 2) does not shut down after a burn. It stays at full burn well into a minute after the Job. So glad I put it in the Ortur Enclosure as I would have a burnt table. Have gone over the settings in Console many times Everything matches. I have to shut the power off on the laser to get it to stop. should not have to do that>

@riskototh 6 месяцев назад

ah, the lightburn ui is a bit mess... i looked multiple times into the device, there are no settings at all... now, your video showed me another bunch of device settings. not shure why they should have to be at two different places. thanks!

@jeffegg2 3 года назад

My K40 I have S=1000 in the equipment settings, and $30=1800 in the GRBL settings. This give me about 19mA output at LightBurn 100% so I don't overpower the tube. I also set $31=7 as the K40 laser tube won't even fire at very low mA.

@DIY3DTECHcom 3 года назад

Yes you can do that also however I like to set it even as sometimes I do run my K40 at 100% (~21ma) as I think fret too much about running the tube lower as it is a trade off as no matter what the tube is a consumable and if the higher power saves time that is money and I am ok with. However each person needs to make that decision...

@robertarmstrong2323 Год назад

Is this why my laser has a spark instead of steady laser?

@NEXXUSS 3 года назад

Good afternoon. From your video I understood the following: 255 is 1/4 of the normal laser power. Always use 1000, the full laser power. The question arises - is it harmful to the laser? Perhaps this will shorten the life of the laser? This concerns the program LightBurn?

@DIY3DTECHcom 3 года назад

what you run the laser at (i.e. duty cycle) is separate from this. As the idea of this is to align the two values other wise S1000 only equals S255 which is about a quarter of the value. Also no there should in general be no issue...

@NEXXUSS 3 года назад

@@DIY3DTECHcom Now I am sure that S-value max on Ortur Laser Master 2 should be set to 1000. I contacted Ortur technical support and received the answer: S-value range from ortur machines is 0-1000 therefore S-MAx is 1000. S0-S255 is usually the range on 8bit controlers, Ortur is a 32bit controler. The limitation of the 8bit controlers implys the gradation in power can only have 256 divisions (8bit). This limit is not present on32bit controlers as ortur ence why S1000 is max.

@yourbread6718 Год назад

Why my mechine did not want make a circle?

@younessid437 3 месяца назад

Thank you so so so much Bro, min 1:10

@javieruriel 5 месяцев назад

aint see those numers on the console i have a fiberlaser 70w

@reddsmorris7053 5 месяцев назад

being new I don't know how to load GRBL setting

@IronMan-yg4qw Год назад

my $30 setting = 5000.. so i set my svalue to 5000??

@lessullivan2006 Год назад

In the video it shows $32=0 surely that is for a router? For use with a laser I understood that it should be $32=1 - it just adds to a bit of confusion.

@DavidALovingMPF102 3 года назад

who's my uncle? Also, what are the colored squares at the bottom of the screen used for? Where do I change scan speed? How do I get multiple screens on the right of the LB page? I only have LASER showing. thanks!!

@user-ry4jo6jr4m 2 месяца назад

Haha

@DavidALovingMPF102 2 месяца назад

I have finally figured out some of those frustrating things..Much better now, 2 years later.@@user-ry4jo6jr4m

@mikg5572 3 года назад

HI! It seems that I have exactly the same problem, but even after I changed the value from 255 to 1000, laser seems to be operatng only in low power, It just left a dot burned in the starting point, and then no mark on the paper, on the path where it should cut. I have Neje Master2 machine. Any ideas how could I fix that?

@DIY3DTECHcom 3 года назад

Make sure $30 and this value match...

@mikg5572 3 года назад

@@DIY3DTECHcom And what does it mean exactly and where can I find it? I'm a noob with this stuff unfortunatelly.

@kiwicupra 3 года назад

what is you dont have $30 ? $$ $0=5 (step pulse, usec) $1=250 (step idle delay, msec) $2=0 (step port invert mask:00000000) $3=0 (dir port invert mask:00000000) $4=0 (step enable invert, bool) $5=0 (limit pins invert, bool) $6=0 (probe pin invert, bool) $10=3 (status report mask:00000011) $11=0.010 (junction deviation, mm) $12=0.002 (arc tolerance, mm) $13=0 (report inches, bool) $20=0 (soft limits, bool) $21=0 (hard limits, bool) $22=0 (homing cycle, bool) $23=0 (homing dir invert mask:00000000) $24=25.000 (homing feed, mm/min) $25=500.000 (homing seek, mm/min) $26=250 (homing debounce, msec) $27=1.000 (homing pull-off, mm) $100=100.000 (x, step/mm) $101=100.000 (y, step/mm) $102=800.000 (z, step/mm) $110=5000.000 (x max rate, mm/min) $111=5000.000 (y max rate, mm/min) $112=800.000 (z max rate, mm/min) $120=500.000 (x accel, mm/sec^2) $121=500.000 (y accel, mm/sec^2) $122=200.000 (z accel, mm/sec^2) $130=200.000 (x max travel, mm) $131=200.000 (y max travel, mm) $132=200.000 (z max travel, mm) ok @@DIY3DTECHcom

@rc3d490 3 года назад

@@kiwicupra update your grbl version

@oscarurbaneja3785 3 года назад

BUENOS DÍAS AMIGO MI NOMBRE ES OSCAR , TENGO UN PEQUEÑO PROBLEMA CON EL PROGRAMA LIGHTBURN YA QUE TENGO UNA IMPRESORA LASER ORTUR MASTER 2 , Y CUANDO ENVIÓ UN CIRCULO A IMPRESIÓN ME SALE OVALADO PARA VER EN QUE ME PODRÍA AYUDAR EN SUS POSIBILIDADES GRACIAS

@rc3d490 3 года назад

tienes que calibrar los pasos del motor, por cada eje

@TheKennyHack 3 года назад

Needed to show you have to type in $$ to bring up the list. Beginners do not know this.

@DIY3DTECHcom 3 года назад

Correct...

@allmightynegro 3 года назад

$$ settings are all correct and still burns at full power. what now?

@robertorekic2486 3 года назад

Same problem did u fix it?

@allmightynegro 3 года назад

@@robertorekic2486 got a new motherboard and grounded the machine

@293frank Год назад

Having a problem with my burns maybe you have come across this problem and possibly have an answer. My burns on my projects are spotty letters not entirely burned and in some areas not burning. Appreciate any help Thank you.