Laser no longer lasers

Scanner & Falcon Creality Falcon
1

Hello everyone, I have a problem and am hoping for help here. Sorry in advance for my bad English…

But now I come to my problem.
Last night I turned something on for cutting, after the laser moved to home position, I wanted to take the finished product out of the laser. Unfortunately, I discovered that the laser stopped cutting in the middle. After checking, I found that the laser moves to the position as it should, but unfortunately there is no longer any blue laser coming out of the laser module. Do any of you have an idea what it could be? The lens is clean, the circuit boards don’t appear to be burned out.

2

Can you use a Multimeter? Check and see where the power isn’t going. I use a digital microscope (sounds crazy but it’s 50$ at amazon, lol) to see if components are OK.
Hope it helps!

3

I’m not familiar with that and to be honest I’m more afraid of breaking something :see_no_evil:

4

Start simple then, check all connections with a magnifying glass. wiggle the connectors to see if they are seated well.

5

First of all, what model do you have?
So the laser is still controllable (moving as it should) but the diode is not emitting anything? If it’s a Falcon 2, it might have triggered the fire alarm and you’ll need to reset it, but it’s hard to say without knowing the model and more details.

6

it is a Falocn 2 22w. you can see a very weak blue laser dot https://youtube.com/shorts/7NAp-mUh-x4

7

If there’s a weak laser dot, what S-values does the GCODE use and can you export the config over the serial console with $$ to see what is set there?

8

I use lightburn

for the job where the video comes from, I set the laser to 93% strength. So it would actually cut through the material

$$
$0=10
$1=250
$2=0
$3=4
$4=0
$5=0
$6=0
$10=3
$11=0.010
$12=0.002
$13=0
$20=0
$21=1
$22=1
$23=3
$24=2000.000
$25=4000.000
$26=20
$27=5.000
$30=1000.000
$31=0.000
$32=1
$100=80.000
$101=80.000
$110=25000.000
$111=8000.000
$120=1000.000
$121=1000.000
$130=400.000
$131=415.000
$150=1
$151=4
$152=30
$153=0
$154=1
$155=1
$156=0
$157=1
$158=1
$160=1
$161=13.00
ok

9

The value for $30 looks good, sometimes people set it to 10000 somehow and then still use S values form 0 to 1000 and only utilize 10% of the power, that’s why I asked.

Did you do the wall test? Set the output power to 1%, remove the module from the gantry and (with no one else nearby and while wearing safety glasses and just activate it even at 1% when it’s shining away from you) let it shine on a white wall or piece of paper >1m away. Do you see 4 individual lines? The 22W has 4 diodes that are combined.

1 Like
10

If the problem stay unsolved, please contact support@crealityfalcon.com for help.

1 Like
11

I will receive a new laser module from creality on Monday. If I then change the module, I will test it beforehand. However, I now assume a hardware defect. I will report.

13

That is a real g reat tip!
I’ll keep this in my “Troubleshooting” documentation for sure!
Thanks!

14

The laser module arrived today and works perfectly.
The lasers are defective on the old one.