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arkypita / LaserGRBL

Laser optimized GUI for GRBL
http://lasergrbl.com
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The laser do not burn when conected to cnc shield. #566

Closed LordPueblo closed 5 years ago

LordPueblo commented 5 years ago

Hello! I have a problem with my laser I cannot figure out for long time. I have a laser which works (burns) when I switch it on without any control. When I connect the laser to CNC Shield and start process in LaserGRBL programm, the laser doesn't give enouph power to burn. I can see that it changer the light power but never burns. I connected the laser even to PIN11 on arduino, but the signal was the same. PLease let me know it anyone has problem like this or any suggestion! Thanks in advance for attention!

StuartB4 commented 5 years ago

What laser do you have ? Is it a Protoneer shield and an Arduino UNO ? What version of GRBL do you have ? Does the same power supply run the motors and the laser, is it strong enough. High enough Amps to run both ?

arkypita commented 5 years ago

https://github.com/arkypita/LaserGRBL/wiki/Laser-Wiring

LordPueblo commented 5 years ago

Ok, here is my configuration Adruino UNO CNC Shield Stepstick Drv8825 Laser - picture in link https://drive.google.com/file/d/1AJz37kW6iLAP8S2Lhjc-jpe2TIwxlHgG/view?usp=sharing Driver is GRBL master servo

Servo and Laser I connect to Z+ and Z- pins on the shield

StuartB4 commented 5 years ago

So do you have 12 volts going in to the red connector, and the Z- or Z+ pin and a ground from the shield going to the white TTL connector. Does'nt really matter if it's Z+ or Z-, they are both connected to each other. Then the laser and fan plugged in the other end white connectors? What version is the shield and what version of GRBL are you using?

xav1

LordPueblo commented 5 years ago

Yes, I have an adapter which was included in suply. The laser burns when I switch it on, but stop burning if I connect it to the shield. Here is the link for the shild https://ru.aliexpress.com/item/A4988-Driver-CNC-Qunqi-Shield-Expansion-Board-for-Arduino-V3-Engraver/32639790781.html?spm=a2g0s.9042311.0.0.274233edl2F7u3 I cannot figure out what is the version. Here is the pic of it.

shield

GRBL library actualy for me is the question, as I downloaded it from unknown pleace. Now I have the files. Name of archive is grbl-servo-master (it is attached). maybe I downloaded it from here https://github.com/arnabdasbwn/grbl-coreXY-servo

grbl-servo-master.zip

StuartB4 commented 5 years ago

Looks like you have the connections correct. It should tell you the version on the board between the motor driver sockets.

516659541

Do you use a servo on your machine ? If not you might be better off using GRBL 1.1 from here. https://github.com/gnea/grbl

You still connect TTL to Z- or Z+ and a Gnd pin on the shield. On the latest 3.10 or above shield it goes to SpnEn pin and Gnd.

einencool commented 5 years ago

Like Stuart already mentioned. You have to connect the red TTL wire to Endstop Z (+ or –) And the black TTL wire to ground (many black connectors beside the Endstop Z.

I think you connected the red wire to Z+ and the black wire to Z-, but that is not correct

LordPueblo commented 5 years ago

@einencool I made a connection red to Z- and black to GND. And still I have laser with low light when I connect TTL to shield. Without shield it burns wood from 2 m )

arkypita commented 5 years ago

And still I have laser with low light when I connect TTL to shield.

What kind of command did you send to turn on the laser?

StuartB4 commented 5 years ago

untitled2

Like this.

untitled3

LordPueblo commented 5 years ago

@StuartB4 img_20190126_140929

LordPueblo commented 5 years ago

Dear @arkypita here is the file attached which I send to board foxy_0022.zip

LordPueblo commented 5 years ago

here is my connection to ttl img_20190126_144746 img_20190126_144731

StuartB4 commented 5 years ago

What did you use to create the file you uploaded (foxy_0022.zip) I've just loaded it in to LaserGRBL and it looks all wrong. Just a few red lines to burn and grey path lines.

foxy

StuartB4 commented 5 years ago

Looking at the GCode for the file, I noticed a lot of G4 P1 commands. How did they get in there ? I think you need to get rid of the Servo version of GRBL and upgrade to the latest Version 1.1 from the link I supplied earlier. https://github.com/gnea/grbl

arkypita commented 5 years ago

Moreover: all S command that set the power are S70 into the file. Your configuration tell that maximum power will be delivered with S255.

arkypita commented 5 years ago

You are running with 1/4 of power.

einencool commented 5 years ago

Can you mark the wires on the picture with the cnc shield for the ttl connection? I can't see them. But as mentioned it seems that you have installed the wrong grbl version to your arduino

LordPueblo commented 5 years ago

Hi guys! I use my plotter now with servo motor (to draw with marker) and I'd like to use the laser same time.

@StuartB4 thanks for recomendation. It seems like I uploaded wrong file. I'll send another one. I tried different libraries but only one is working fine with servo motor it is the one I use now. I'll try to install the one you send to me and let you know the result.

@arkypita the comand M3 SXX is working for 90 - it is maximum degrees which servo motor can move to. I have send M3 S120 and even 255 and the result was same as with M3 S90. I connected Servo to Z+ and Laser to Z- .

LordPueblo commented 5 years ago

Looking at the GCode for the file, I noticed a lot of G4 P1 commands. How did they get in there ?

I generate the G Code file by Inkscape with MI GRBL Z-AXIS Servo Controller extention

I think you need to get rid of the Servo version of GRBL and upgrade to the latest Version 1.1 from the link I supplied earlier. https://github.com/gnea/grbl