# Transition lines!

**URL:** <https://forum.lightburnsoftware.com/t/transition-lines/33399>\
**Category:** LightBurn Software Questions\
**Created:** [February 10, 2021, 6:57pm UTC](https://forum.lightburnsoftware.com/t/transition-lines/33399 "2021-02-10T18:57:48Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Ronald1](https://forum.lightburnsoftware.com/letter_avatar_proxy/v4/letter/r/ce7236/32.png) [@Ronald1](https://forum.lightburnsoftware.com/u/Ronald1)\
**Post date:** [February 10, 2021, 6:57pm UTC](https://forum.lightburnsoftware.com/t/transition-lines/33399/1 "2021-02-10T18:57:48Z")

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I have a sainsmart 3018 pro with laser and WITH $32=1 selected I still get transition lines.  
I tried changing $30=100 thru 1000 and $31=100 thru 100  
and as soon as go to $31=900 with $30=1000 I loose laser power and won’t burn/

HELP!!! before this thing goes in the water!!!

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**Author:** ![Rick](https://forum.lightburnsoftware.com/user_avatar/forum.lightburnsoftware.com/rick/32/69_2.png) [@Rick](https://forum.lightburnsoftware.com/u/Rick)\
**Post date:** [February 10, 2021, 7:07pm UTC](https://forum.lightburnsoftware.com/t/transition-lines/33399/2 "2021-02-10T19:07:39Z")

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If you are using Grbl, understanding exactly what these settings “do” might be of help to you.

> **[gnea/grbl](https://github.com/gnea/grbl/wiki/Grbl-v1.1-Configuration)**
>
> Grbl-v1.1-Configuration

What version of firmware is used to drive this laser? What Device Profile did you select in LightBurn? Post your firmware settings for review.

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**Author:** ![LightBurn](https://forum.lightburnsoftware.com/user_avatar/forum.lightburnsoftware.com/lightburn/32/75577_2.png) [@LightBurn](https://forum.lightburnsoftware.com/u/LightBurn)\
**Post date:** [February 10, 2021, 9:00pm UTC](https://forum.lightburnsoftware.com/t/transition-lines/33399/3 "2021-02-10T21:00:05Z")

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> [@Ronald1](#):
>
> $31=900 with $30=1000

Don’t set $31 to 900. Set $31 to 0, $30 to 1000, and $32 to 1.

Then, don’t try to make the laser go faster than the firmware limits allow. That’s why you’re losing power. Read here: [Configuring a 3018 CNC (or other CNC-based laser) for use with LightBurn](https://forum.lightburnsoftware.com/t/configuring-a-3018-cnc-or-other-cnc-based-laser-for-use-with-lightburn/12244)

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**Author:** ![system](https://forum.lightburnsoftware.com/user_avatar/forum.lightburnsoftware.com/system/32/64335_2.png) [@system](https://forum.lightburnsoftware.com/u/system)\
**Post date:** [March 12, 2021, 9:00pm UTC](https://forum.lightburnsoftware.com/t/transition-lines/33399/4 "2021-03-12T21:00:41Z")

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Closed on March 12, 2021, 9:00pm UTC

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