# Continuous Jog causing Z axis issues?

**URL:** <https://forum.lightburnsoftware.com/t/continuous-jog-causing-z-axis-issues/103311>\
**Category:** Smoothieware\
**Created:** [June 23, 2023, 12:10am UTC](https://forum.lightburnsoftware.com/t/continuous-jog-causing-z-axis-issues/103311 "2023-06-23T00:10:52Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![wanders256](https://forum.lightburnsoftware.com/letter_avatar_proxy/v4/letter/w/ebca7d/32.png) [@wanders256](https://forum.lightburnsoftware.com/u/wanders256)\
**Post date:** [June 23, 2023, 12:10am UTC](https://forum.lightburnsoftware.com/t/continuous-jog-causing-z-axis-issues/103311/1 "2023-06-23T00:10:52Z")

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Not looking for sympathy just a solution…I have an Omtech K40 with the K40+ board (SmoothieWare)I’ve been using a motorized Z axis for awhile through Lightburn without issues. I just had a TIA (mini-stroke) generally I’m doing great no real deficits but I have a few areas that are a bit cloudy . I tried to move my Z axis in Lightburn today and nothing happens. If I swap leads for X or Y steppers to the Z connection neither X or Y steppers will move . If I connect Z leads to Y or X connector Z stepper moves perfectly. I find mention of “continous jog” causing issues with Z axis movement true or not I don’t know… Heres my problem, I cant remember if I made changes somewhere before the TIA. Continous Jog is supposed to appear below Move Keys but doesn’t. Could I have disabled it somehow and dont remember? Z axis is enabled in Lightburn  
Lightburn is 1.4.00

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**Author:** ![berainlb](https://forum.lightburnsoftware.com/letter_avatar_proxy/v4/letter/b/85f322/32.png) [@berainlb](https://forum.lightburnsoftware.com/u/berainlb)\
**Post date:** [June 23, 2023, 12:40am UTC](https://forum.lightburnsoftware.com/t/continuous-jog-causing-z-axis-issues/103311/2 "2023-06-23T00:40:41Z")

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What kind of Z mechanism do you have on the K40? I’m not familiar with these typically having a motorized bed and seems unlikely you’d have a motorized head.

Was this an add-on?

> [@wanders256](#):
>
> Continous Jog is supposed to appear below Move Keys

I don’t believe Continuous jog is an option for Smoothieware.

Can you do the following:

1. Take a screenshot of Edit-\>Device Settings
2. In Console run these commands. Can you describe what happens when you do this?

```auto
G91
G0 Z-3
G0 Z3

```

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<div class="post-metadata">

**Author:** ![wanders256](https://forum.lightburnsoftware.com/letter_avatar_proxy/v4/letter/w/ebca7d/32.png) [@wanders256](https://forum.lightburnsoftware.com/u/wanders256)\
**Post date:** [June 23, 2023, 7:20pm UTC](https://forum.lightburnsoftware.com/t/continuous-jog-causing-z-axis-issues/103311/3 "2023-06-23T19:20:44Z")

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Sir I appreciate you taking time to help me!  
I did build this Z axis bed as an add on, until now its worked great.  
I’m working on getting a screen shot…It says it goes to clipboard but I sure cant find it. but i will get figured out. I tried G91 G0 2-3 G0 23 it came back with unsupported command, Ive never entered any code before so good chance I screwed it up? You are correct the head only moves on Y and X.

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**Author:** ![wanders256](https://forum.lightburnsoftware.com/letter_avatar_proxy/v4/letter/w/ebca7d/32.png) [@wanders256](https://forum.lightburnsoftware.com/u/wanders256)\
**Post date:** [June 23, 2023, 7:25pm UTC](https://forum.lightburnsoftware.com/t/continuous-jog-causing-z-axis-issues/103311/4 "2023-06-23T19:25:58Z")

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![2023-06-23 (1)](https://forum.lightburnsoftware.com/uploads/default/original/3X/b/b/bbc56e8fb024194fb2d351b5e52b2b1e7e15a377.png)

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**Author:** ![berainlb](https://forum.lightburnsoftware.com/letter_avatar_proxy/v4/letter/b/85f322/32.png) [@berainlb](https://forum.lightburnsoftware.com/u/berainlb)\
**Post date:** [June 23, 2023, 7:43pm UTC](https://forum.lightburnsoftware.com/t/continuous-jog-causing-z-axis-issues/103311/5 "2023-06-23T19:43:46Z")

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> [@wanders256](#):
>
> I tried G91 G0 2-3 G0 23 it came back with unsupported command, Ive never entered any code before so good chance I screwed it up?

Can you copy and paste the commands? Note that it should be the letter `Z`, not the number 2.

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**Author:** ![wanders256](https://forum.lightburnsoftware.com/letter_avatar_proxy/v4/letter/w/ebca7d/32.png) [@wanders256](https://forum.lightburnsoftware.com/u/wanders256)\
**Post date:** [June 23, 2023, 10:15pm UTC](https://forum.lightburnsoftware.com/t/continuous-jog-causing-z-axis-issues/103311/6 "2023-06-23T22:15:07Z")

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I entered the codes with Z not Two…(Feelin a bit foolish…) It didnt give any error msg but didn’'t do anything I could see…BUT while doing it I hit the run Gcode button in the Laser window. I saw Z100 just that nothing else. I deleted that now Z axis works fine.  
THANK YOU for your help. Pretty obvious at this point I need to pick up at least some basic knowledge on GCODE use. Can you recommend any YouTube video(s) that may be better than others? or maybe a website “GCODE for DUMMIES” perhaps .

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**Author:** ![berainlb](https://forum.lightburnsoftware.com/letter_avatar_proxy/v4/letter/b/85f322/32.png) [@berainlb](https://forum.lightburnsoftware.com/u/berainlb)\
**Post date:** [June 23, 2023, 10:49pm UTC](https://forum.lightburnsoftware.com/t/continuous-jog-causing-z-axis-issues/103311/7 "2023-06-23T22:49:25Z")

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> [@wanders256](#):
>
> I saw Z100 just that nothing else. I deleted that now Z axis works fine.

This is a bit confusing to me but if you’re back in business that’s the important part.

> [@wanders256](#):
>
> Can you recommend any YouTube video(s) that may be better than others? or maybe a website “GCODE for DUMMIES” perhaps .

I’m not familiar with any specific video that would be a good introduction. If you’re somewhat technical or familiar with CNC operation then reading through the G-Code overview on LinuxCNC site is a good start.  
[G Code Overview (linuxcnc.org)](https://linuxcnc.org/docs/html/gcode/overview.html)

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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:** [July 23, 2023, 10:49pm UTC](https://forum.lightburnsoftware.com/t/continuous-jog-causing-z-axis-issues/103311/8 "2023-07-23T22:49:35Z")

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Closed on July 23, 2023, 10:49pm UTC

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