Laser misalligning

fl4sh · June 7, 2022, 11:34am

Hi. been using lightburn for nearly 2 years so not a newbie. lately if I try to engrave on a 300x200 slate, the image is engraved approx 5mm lower than it should be, even though it frames correctly or if i use move laser to it goes to correct place. any ideas why this has just started happening? many thanks

JohnJohn · June 14, 2022, 6:29pm

I suspect you have a work offset configured.

Previous Ortur Firmware versions seemed to pick up the offset on occasion.
Are you running the most current Firmware for your device?

You can poll the engraver and see which firmware you have by entering $i in the Console window in LightBurn.

Entering $# in the console window will report the configuration of the coordinate systems.
If you copy and paste that report here we may see the offset.

I recommend this link to our more experienced laser diode users.

github.com

gnea/grbl/blob/master/doc/markdown/commands.md

# Grbl v1.1 Commands

In general, Grbl assumes all characters and streaming data sent to it is g-code and will parse and try to execute it as soon as it can. However, Grbl also has two separate system command types that are outside of the normal g-code streaming. One system command type is streamed to Grbl like g-code, but starts with a `$` character to tell Grbl it's not g-code. The other is composed of a special set of characters that will immediately command Grbl to do a task in real-time. It's not part of the g-code stream. Grbl's system commands do things like control machine state, report saved parameters or what Grbl is doing, save or print machine settings, run a homing cycle, or make the machine move faster or slower than programmed. This document describes these "internal" system Grbl commands, what they do, how they work, and how to use them.

## Getting Started

First, connect to Grbl using the serial terminal of your choice.

Set the baud rate  to **115200** as 8-N-1 (8-bits, no parity, and 1-stop bit.)

Once connected
 you should get the Grbl-prompt, which looks like this:

```
Grbl 1.1e ['$' for help]
```

Type $ and press enter to have Grbl print a help message. You should not see any local echo of the $ and enter. Grbl should respond with:

```

This file has been truncated. show original

OrturTech · June 14, 2022, 6:32pm

Would dependon the machine, OLM2 original dont have this issue as such

@fl4sh
Could you type
$i
in console
Then home machine
Type
?
press enter
Post output here so we can see please?

system · July 14, 2022, 6:32pm

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