GRBL Shield video 7 hooking up your laser and configuring your registers

This video goes over a lot. I'm not sure it conveys everything correctly. Make sure to ask questions if you don't understand things.

[@JohnJensen-xr7fk]

2 years later and your video is still helping people. I switched to the new version of grbl and this helped me figure out what changed faster. thanks

[@Gig2Dave]

Dude this was awesome, after 3 weeks of fiddling and trying to find how to connect the laser and get the X and Y axis aligned properly, I found your videos. Thanks a span for your time and effort. Your explanations and step by step instructions are a winner.

[@09sheerios]

I wish I would have stumbled upon your explanation about a month ago. Took me about a month to understand going through videos and tutorials what you just explained. Good video.

[@rickgauthier6597]

Thanks for sharing this video. I knew there was pin out changes between the two shields and i was struggling to figure out my machine, but this was cut and dry and exactly the video i needed to watch. thanks for the explanation of the pwm pin out from Z+. it got me up and burning.

[@GustavoGuevara123]

Gracias por compartir lo que sabes, me ha servido un montón, armé una máquina CNC y con tus aportes he podido configurarla, un fuerte abrazo 🫂.

[@jasongriffith7298]

Just found your videos! You, sir, are awesome! Very informative but even I can understand. Thanks!

[@joeking5211]

Superb, The bit re G1F500 is what I have never seen on any other info and has had me beat trying get a PWM signal on a 'scope from the drive pin which is Z- OR Z+ on the Protoneer GRBL Arduino Shield, as these two signals are connected to the same pin D11on the shield PCB, just some info for anyone else having issues, as some people refer to them individually, but either will do. Many Thks.

[@bobpetkau2809]

Thank you...your videos made my project a success

[@saikumarsaikumar4955]

Very good explanation in all videos 🤗🤗

[@ridaadevilliers9308]

THANKS SO MUCH FOR THIS, YOU MADE IT EASY TO UNDERSTAND

[@3dsteveo765]

Awesome!

[@thilanudara.photography3907]

Hello, I need your help! I have my own CNC Machine, the controller is the same as you use, Arduino Uno + CNC Shield with A4988 Stepper motor drivers! I used it as a pen plotter before! But now I need to convert it to a laser cutter, I already bought a 2.5W, 12V laser module. I saw your video, The thing I need to know is, how should I connect the PWM pin on the module to the CNC Shield? What is the diagram? Please help me!

[@UzunKamis]

Dear Anthony, thank you for the very informative series of videos. I think I am missing something. I could not see the details of the 3 pin (Yellow, Black, Red) laser connection to the CNC shield. Do you mind mentioning the connection? I am sure black goes to ground. But I am not sure about Yellow and Red. Is it Yellow or Red connected to Z Limit? In that case, where the other one addresses or is it just unplugged?

[@FusionMan-ev9yh]

Hi. You need to focus the laser by turning the knurled knob at its tip end until the beams point is round.

[@ralphgibson6006]

Best explanation

[@Engineering_Science]

Is it possible you can make a tutorial on this based on the ender-3 motherboard such as the 4.2.7 board? I'm trying to figure out how I can modulate an Aliexpress laser module which is low powered and will power it at 25mW to make PCBs using photo-lithography process.

[@RonAdamsky]

Thanks for explanation. My question is : Since I have a 10W laser, do I need to buy an additional one TTL driver board? Can I control it with an Arduino Shield instead? I mean engraving or light cutting.

[@brakthehun]

You do need a ttl driver for the laser. Most lasers come with a ttl board or have them built in.

[@RonAdamsky]

@@brakthehun In specification my Laser Module by VoidMicro I see : PWM/TTL Input: DC3.3V-12V 100Hz~50KHz Preferred: 5KHz.There is 3pin plug . When I will used Arduino Shield V3 with stepper driver there will be OK?

[@SharpenedEyes]

@@RonAdamsky Hello! I'm having the same problem as you. How did you manage do solve it?

[@aramagon7011]

HI well here is a conundrum how do i install this to a cnc shield FB03-500 500mW 405nm Blue Violet Laser Module 2.54-3P TTL/PWM Modulation DIY Engraver for EleksMaker any help because i dont know where it goes been trying to find any information but i have found nothing on this model.

[@esmirhodzic981]

very good video , ur funny xD thank you

[@farukcoban2863]

Hello Anthony thank you for these detailed videos i am so happy to finally find someone explaining to dumb person like me. I have one question. I have 24v dc 5W laser head creality laser can i use that laser on this shield i feel like your laser is same capacity too. Best videos i found by far

[@brakthehun]

Yup!! The 5v data signal of the Arduino will still trigger that laser. The shield can run off 24v just fine.

[@user-ge1qc5hy8o]

Is it possible to alter the code toget the pins back to the way there were for Z end stop? I can't find .9 version. Not so sure I can figure out the code either.

[@user-ge1qc5hy8o]

I may have figured out a solution by copying V.9 hex file. Saving in note pad as a .hex and uploading thru laser GRBL. Trying out tomorrow.

[@mateuniopierdzi1151]

Hello! Thank you for explaning this! Best tutorial about this topic! I would like to try it before my laser will arrive - should I place a resistor with this LED?

[@brakthehun]

yes

[@joseluisgiraldosoto9160]

Hi, do you have a control diagram or any connection scheme, my team made a machine, and the laser is direct, the signal doesn't reach to device?

[@phucdo7344]

Thank you so much for a great video. Can you help me how to connect co2 laser supply to cnc shield? Does it work if i do the same way?

[@brakthehun]

Depends on the power supply. There's no one single way to hook up a CO2

[@mbijjk]

So question for you. You are giving the laser a PWM Signal could you power a servo from this instead of a laser if you set the max at 175. I am using this right now it works great love the work. The reason is I am making a pen plotter and need to use a servo to move it up and down the laser would be set when I load the program 10 mim and max 175.

[@brakthehun]

Yes!! There are GRBL releases that use servos instead of lasers. Also,, FluidNC supports servos very well.

[@mbijjk]

@@brakthehun thanks for the replay tried so of the programs but they gave me Errors in Inkscape. So what I ended up doing is to write a small program for a NANO to control the servo. The NANO keeps checking the laser pin for high or low then moves servo had to set laser out to 1000 but it works. I will see how much of a delay there will be it goes high till pen goes down. But looks good so far. I did enjoy all you videos on laser grbl so far. Thanks again.

[@TheBrockbencomo]

Great tutorials i been wanting to switch out my stock k40 board for some time just didnt want to hassle with firmware etc.. So simple..question my k40 has a k axis.. Since ill be using the Z endstops pun for pwm. How would i wire my z endstop?

[@brakthehun]

The spindle output of the GRBL board is wired to the Z end stop

[@VincentLancon]

Where exactly are you hooking up the 12 volt power for the laser... the video isn't clear enough to see. I got the z limit and it is functioning fine from 0-5v for the PWM depending on S level... but I fail to see where the 12V is coming from exactly, can you explain?

[@brakthehun]

The screw terminals

[@macanudo_jeff]

Could you show the connection diagram up close?!

[@yayayabeben5686]

Can any type of laser be used?

[@JARC99_]

Hello. Thanks for the video it really has helped me out a lot. I was wondering if there is a way to do the same with 4-wire laser modules that have a fourth wire for temperature control, do you know if the CNC shield support that functionality?

[@brakthehun]

The 4th wire is typically another ground. I would need to know what laser you are using

[@JARC99_]

@@brakthehun oh ok. I am planning on using the 10W LU2-10A Laser Module from Ortur

[@brakthehun]

@@JARC99_ Yeah,, there are 2 grounds. One is PWN / gnd and the other is 24v / gnd

[@JARC99_]

@@brakthehun oh good to know. Do you know why they put two ground wires?

[@brakthehun]

@@JARC99_ Some laser controllers are isolated from the power supplies. This way,, It makes sure ground is shared between the power supply and the laser controller.

[@tarekhassan6958]

Hello I do not have the 3 lines ( 30, 31, 32) hot to add them ? and my laser is always on. Thnak you

[@brakthehun]

Perhaps you have grbl 0.9

[@tarekhassan6958]

@@brakthehun Yes I have grbl 0.9.. anyway you helped me by an idea to use chnese relay and it worked as well. thank you

[@macanudo_jeff]

Friend, can you help me? I bought a module like it turns on, but it can't turn off, it answers the

[@brakthehun]

What module do you have??