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arkypita / LaserGRBL

Laser optimized GUI for GRBL
http://lasergrbl.com
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Laser does not turn off, problem solved #497

Closed David7820 closed 5 years ago

David7820 commented 5 years ago

Hello everyone, first I apologize because this is a google translation. I decided to write this after solving my problem, even though I do not have enough knowledge about grbl and I am new to the cnc world ..., maybe someone will save the time I lost installing my laser (a lot) and run LaserGRBL. The problem I had is that the laser simply did not turn off at any time, in any way, with all the software installed correctly. If someone has this problem with a laser like mine (built-in pwm), I finally solved it by simply connecting a ground wire (0V from the laser power supply) directly to an Arduino Gnd pin. Before I had it connected to the general Gnd of my homemade machine (in this way, I do not understand it, but it does not work even though they were all connected, including Arduino). Thank you for being able to use this software. I hope to help. 5a79637f56598191295677

OldShark commented 5 years ago

Hi David. U suggests something like this?

circuit

David7820 commented 5 years ago

Hi, yes to the arduino directly, to the common gnd of the cnc it did not work for me. Although I used the power supply that comes with the laserThere is not much information about these lasers, I almost give it as impossible.

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El mié., nov. 21, 2018 a 16:33, OldSharknotifications@github.com escribió:
Hi David. U suggests something like this?

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OldShark commented 5 years ago

I think it's not impossible. I already detected the problem in mine. I'll put the image at night. I connected the ocilloscope to pin 11 (Z +). the pulses strike right with the GRBLLaser tracing the image. The voltage sent is okay for laser firing in dark areas. but this without connecting pin 9 in the laser driver. When connecting to the laser driver, the voltage on pin 11 drops by half. I'll do a test. I will unsolder the SW-LD62 cooler (LD driver). I think he's actually draining something. This being real, I'll use a source just for it. otherwise I will put a set-up on pin 11 to raise the voltage for sending to the TTL.

OldShark commented 5 years ago

Do you have a multimeter to be able to measure the voltage at pin 11 (Z +) connected to the LD and without connecting?

OldShark commented 5 years ago

And sorry my poor english. ahahahahaahaha

David7820 commented 5 years ago

Sorry, not understand the question ¿LD? , My english is worse Enviado desde Yahoo Mail con Android

El mié., nov. 21, 2018 a 18:38, OldSharknotifications@github.com escribió:
And sorry my poor english. ahahahahaahaha

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OldShark commented 5 years ago

Are you french?

David7820 commented 5 years ago

From Spain, Canary Islands

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El mié., nov. 21, 2018 a 18:52, OldSharknotifications@github.com escribió:
Are you french?

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OldShark commented 5 years ago

Ok. Let´s go. Google translate: ¿Tiene un multímetro para poder medir el voltaje en el pin 11 (Z +) conectado al LD y sin conectar?

OldShark commented 5 years ago

soy brasileño.

OldShark commented 5 years ago

pero una duda que no entendí. ¿has conseguido solucionar el problema con ese láser y el cnc shield?

David7820 commented 5 years ago

Si resolví el problema, no tengo cnc shield, drivers externos para los motores conectados directamente a arduino.El problema es que la fuente de alimentación de estos laser no tienen una toma de tierra.Esto es lo que midoConectado  0.046vTrabajando  hasta 3.2vSin conectar 0.01vNo se si es lo que me pidesPerdón se me fue en español

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El mié., nov. 21, 2018 a 19:02, OldSharknotifications@github.com escribió:
pero una duda que no entendí. ¿has conseguido solucionar el problema con ese láser y el cnc shield?

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OldShark commented 5 years ago

creo que es exactamente el problema. la noche llegando del trabajo voy a poner las imágenes de las mediciones que realicé

OldShark commented 5 years ago

algo está drenando la corriente en el perno 11

David7820 commented 5 years ago

Please to meet you

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El mié., nov. 21, 2018 a 19:17, OldSharknotifications@github.com escribió:
algo está drenando la corriente en el perno 11

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OldShark commented 5 years ago

sorry . corrente = cadena

OldShark commented 5 years ago

and nice to meet U2

OldShark commented 5 years ago

Go home now. when i came home put some photos

OldShark commented 5 years ago

buenos días David. desconectar el refrigerador no ha cambiado en nada. la caída de la señal permanece. voy a intentar poner un regulador step-up. Vamos a ver. gran abrazo

David7820 commented 5 years ago

Saludos 

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El jue., nov. 22, 2018 a 12:27, OldSharknotifications@github.com escribió:
buenos días David. desconectar el refrigerador no ha cambiado en nada. la caída de la señal permanece. voy a intentar poner un regulador step-up. Vamos a ver. gran abrazo

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