I know this is a setting

[Danderger (Dan)]

As an example if i am cutting a zero the laser cuts the center travels about 400mm then travels back then cuts the outside of the zero travels out 400mm then returns it’s origin

[bernd.dk (Bernd)]

What does your preview window say?
(without your file it’s just a guess)

[MikeyH (Mike Hembrey)]

All zeros in text or just one by itself? A text zero or one you created out of 2 circles or ovals?

@bernd.dk mentioned your file. Can you upload it?

[LightBurn (Oz)]

Nope, that’s not a setting.

The only thing I can think of that it could be is a mistake in the custom GCode generator.

[Danderger (Dan)]

the zero was an example to simplify this problem

[MikeyH (Mike Hembrey)]

I follow that, but there are different kinds of zeroes.

[Danderger (Dan)]

I had to work last night it is winter in Canada so snow removal is part of life here.

I have 2 choices

1. I can remove the grbl 1.1 device then reinstall it

2. this reminds of a problem I had when i installed Lightburn 2.0 I’m temped to uninstall Lightburn and reinstalled lightburn.

I don’t like to over think any challenge over thinking is how a challenge becomes a problem. I work the laser hard I’ve been shown the weakness of these hobby devices all in one motion controllers.The PWM circuit gives up. I have a new Rudia controller on it’s way. If anyone knows about reliability of these controllers I’m happy to hear from you

Thanks all

[ednisley]

@Danderger

a new Rudia controller on it’s way

Ruida controllers do not use G-Code, which means none of the LightBurn custom G-Code features typically used with GRBL controllers will be available and you cannot save the output as a G-Code file.

In particular, the various machine origin and origin offset commands do not apply.

Ruida controllers are adapted to gas lasers. They have an L-ON output to enable the laser power supply and a ‘PWM’ output to set the intensity. Diode lasers generally have only a PWM control input and expect the controller to shut off the PWM signal to disable the laser; the Ruida does not do that by default, so the diode laser will remain on when it should be off.

Some folks report success by telling the controller it’s driving an RF laser, but it’s not consistent.

Some background:

Two lasers - diode and ruida - How do I set this up?

I have a diode laser and g code lightburn. I have purchased a second, co2 laser with a ruida controller. How do I set lighterburn up to recognize both/either lasers?

Ruida controller and diode laser

So, back in 2021 I asked the question as to whether it’s possible to control the diode laser with a ruida controller. So fast forward two jobs and one baby later and I’ve finally got round to mounting one. The trouble is that I managed to integrate it so it’s using the pwm from the board but the power is an issue. Its a 24v input, but if I use the 24v output on the board it’s controlled correctly but lacks power to do anything. (Measured 0.8a at the head of I was using my multimeter correctly…

[Danderger (Dan)]

thank you for the reply

It looks like a c02 laser is in my future.
I figured out the issue with this laser I ran the update for lightburn and my machine works fine with my 10watt laser.

What started this journey was the failure of the 30watt laser i was using. i thought it would be good to share this so anyone starting with a diode laser get to know the laser take it apart and know what it looks like inside.

I didn’t do this and as a result the laser’s electronics got extremely dirty and shorted out the driver board. I have been using lasrtee diode lasers and lasertree has been awesome to work with. When I told them what I had done to there laser they wasted no time is sending my new electronics (10.00$USD) with free shipping. I got the replacement parts for the K30 in a week so I’ll get this laser working laser today.

I’ve been using grbl 1.1driver board if there is a better controller board that lightburn supports for the diode laser I’d like to hear from you

[ednisley]

@Danderger

a better controller board that lightburn supports for the diode laser

I don’t have any direct recommendations, but a recent discussion may be helpful:

Recomendation please

To run GRBL firmware on the STM32 microcontroller, you’ll need to use grblHAL Whey have a Webbuilder which makes the flashing process a little bit easier. (Though still not easy!) You will need to know the exact pinmap and some other variables. The manufacturer of your board should be able to send you a pre-compiled .bin file of the firmware and give you instructions on how to flash it to the STM32. I thought, you wanted to replace this board? Did you try to swap the stepper drivers?