Laser burns Zigzag curves

[Birlie (Sam)]

Hi! I’m quite new to this topic. Just bought a hobby / china laser called Vevor L1717. It was recognized in Lightburn as a GRBL device, I have adjusted my axes and e.g. burning a 20mmx20mm square results correct measures. However, whenever there is a curve in the object it does zigzag and rubbish, see the attached pics. Looks like a wrong setting to me. (With the shipped iOS app, it burns correct shapes). Any Idea how to fix this?

My config values ($$) are:
$0=8
$1=25
$2=0
$3=0
$4=0
$5=0
$6=0
$10=1
$11=0.010
$12=0.002
$13=0
$20=0
$21=0
$22=0
$23=0
$24=25.000
$25=500.000
$26=250
$27=1.000
$30=1000
$31=0
$32=1
$33=0
$100=70.488
$101=91.941
$102=80.000
$110=8000.000
$111=8000.000
$112=1000.000
$120=500.000
$121=500.000
$122=20.000
$130=170.000
$131=169.000
$132=200.000

Thanks for any help.
Cheers, Birlie

[ednisley]

@Birlie

it does zigzag and rubbish

This seems to happen after downloading a damaged or cracked version of LightBurn. Uninstall what you have now and reinstall from a known-good copy:

Download / Trial

A note to support@lightburnsoftware.com describing where the damaged version came from should be productive.

[Birlie (Sam)]

@ednisley Oh thank you so much… I was driving me mad. I got the trial from a freeware site, now using the trial version from lightburn directly. It works, rounds are round now! Thanks again!

[ednisley]

@Birlie

I got the trial from a freeware site

Now would be a good time for a good malware scanner run, because you never know what else may have crept in under false pretenses.