Homing cycle is

LightBurn Software Questions
1

error:5 Homing cycle is not enabled in your Grbl settings.

Homing cycle is not enabled in your Grbl settings.How do I solve this? I have a Sculpfun 30 Pro Max, 20 watt. It has limit switches.

2

See this guide: Setting up the software - Diode Laser Wiki

You just need to enable the firmware settings. Though, I recommend turning off auto home at startup which you seem to have enabled.

3

After reading what @misken provided, and you really should, then check the $22 parameter (1=enabled).
I also just got a new S30 Pro with Home switches, and homing was not enabled. Sculpfun could at least include a slip of paper warning us.

4

Thank Mike! Yes, I read through the Wiki article. Very thorough. Actually it answered several other questions. While I have you, can I ask another question? I’m not sure how to categorize the issue, perhaps you can point me in the right direction. I downloaded a 390 X 390 grid for my waste table from La Hobby Guy. The grid lines are not parallel, the outside corners have an odd curve to them and the circle I placed in the middle is not round. Everything looked correct on the preview. Is this a software, hardware, pattern, or operator issue?

Thanks again!

Dale

Dale

5

Usually a mechanical problem. All mechanical parts need to be revised after setting up the laser, since this can’t be done in the factory. Most likely your wheels, belts and screws are not checked / set up correctly. There is another guide about that:

6

Sorry, I must have done something wrong. I’ve changed various settings as described in the Wiki documents an the laser head crashes into the rails and stalls. How can I reset to factory defaults and start over?

I can’t believe I’m having so much difficulty with this! I’ve worked with tools for over 50 years and never had 1% of what I’m experiencing now.

Please help me start over.

Thanks!

Dale

7

If you want to reset all firmware values to default, you can send “$RST=*” in the console. This resets all settings.

Does the laser recognize the switches? If it doesn’t stop, they are either wired wrong or maybe swapped. The limit switches article in the wiki shows how to test if the switches are recognized correctly. It’s the ?-command.

8

I was of the impression that Homing occurred when the machine was turned on, it doesn’t. But, In the Move window, I can home the laser and that’s fine.

I think I created an issue on my own though. One of the Wiki How articles talked about firmware. I attempted to load the firmware file that was included through X Loader. Before trying this, My machine was on and connected to Com 5. When I attempted to load X Loader said the port was busy, so I plugged into Com 6 and the file began to load. The X loader window said it was uploading for about an hour, so I quit. The laser now crashes into both X and Y rails at both limits of their traverse, and stalls and I have no idea what to do now.

I’m not a dummy but this has been a very frustrating beginning.

Dale

9

This happens if you enable “auto home at startup” in LightBurn device settings. Then LightBurn sends the homing command upon connection. I recommend turning that off, there are many times you would rather not home at every connection. It’s better to start it manually, in my opinion.

I don’t know what has happened here exactly. The wiki hopefully states everywhere that you should NOT change the firmware when enabling homing. It’s not required, only in specific use cases.
Anyhow, the XLoader can’t flash your board at all. You have a 32bit board and the xLoader can only flash 8bit boards. So the process had to fail and should not have changed anything.

In the unlikely event that xloader somehow altered your firmware, though, I recommend flashing the correct one again. Use the firmware page of the wiki. Check for the section of the S30 series, choose the firmware for S30 and use MKS Laser Tool to upload the firmware.

Then check the table at the bottom of the firmware page, there is the list for all settings that should be set. You can also post your settings here for us to check. Send $$ in the console window and copy the output here.

10

error:3

Grbl ‘$RST’ system command was not recognized or supported.

11

Did you enter the full command?
$RST=*
Or only the first part?

12

Thank you, I forgot the “*”. here’s my output.
$113=1000.000

$114=1000.000

$115=1000.000

$120=1000.000

$121=1000.000

$122=1000.000

$123=200.000

$124=200.000

$125=200.000

$130=400.000

$131=410.000

$132=200.000

$133=300.000

$134=300.000

$135=300.000$113=1000.000
$114=1000.000
$115=1000.000
$120=1000.000
$121=1000.000
$122=1000.000
$123=200.000
$124=200.000
$125=200.000
$130=400.000
$131=410.000
$132=200.000
$133=300.000
$134=300.000
$135=300.000

13

The first part is missing, it should start with $1.

Those values above are ok, though the lines $130 and $131 (workspace size) are too big for a Pro Max, change them to
$130=370
$131=360
(you can enter those one by one in the console, the values are stored then).

14

ok,

thank you! I have corrected the settings. So, I have a pattern from Louisiana Hobby Guy that is a 400 X 400 grid. I know this will not work on my machine because I’ve set workspace to 370 X 360. So, I’ve drawn a square 370X x 360Y. I centered on a 400 X 400 grid and “framed” the square. What I’ve noticed is that the laser head will stall/freeze at either limit. It stalls long enough that the operation ends. The limit switch because of the new workspace size is irrelevant.

15

The laser head stalls at the limits of the X axis movement

16

I didn’t understand completely. You can’t frame a 370x360 square? There are two things why this can happen:

  • you wrote that you centered on 400x400 grid. That’s wrong. Your origin for the laser and any project should be bottom-left. So, do a homing cycle, leave the laser where it is (at 0,0) and then start the frame. (you can center on the grid when you use absolute coordinates, but it still doesn’t make sense to center first because the laser needs to drive back anyhow.)
  • There is a thing called homing pull-off. This is a small distance the laser drives back into the workspace to release the switches. I think it is set to 2mm usually. You need to subtract this from the workspace. So if you have a 370x360 workspace, the usable space is 368x358. This depends a little on how the firmware is configured, you can check which position is reported after the homing cycle.

You should enable hard limits and soft limits to make sure that the laser doesn’t crash into the frame. And you should also change the workspace to 370x360 in LightBurn; otherwise it’s misleading occasionally.

17

Ok, I’m just about their! Now that You’ve helped me with setting up my machine, I can start watching the tutorials.

Thanks for all of your help!!!

Dale

18

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