# Focus Test Z-Axis Moves but fires on the same at 0

**URL:** <https://forum.lightburnsoftware.com/t/focus-test-z-axis-moves-but-fires-on-the-same-at-0/173436>\
**Category:** Ruida controllers\
**Tags:** ruida, focus, z-axis\
**Created:** [June 12, 2025, 6:49pm UTC](https://forum.lightburnsoftware.com/t/focus-test-z-axis-moves-but-fires-on-the-same-at-0/173436 "2025-06-12T18:49:39Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![texasparamedic](https://forum.lightburnsoftware.com/letter_avatar_proxy/v4/letter/t/7c8e57/32.png) [@texasparamedic](https://forum.lightburnsoftware.com/u/texasparamedic)\
**Post date:** [June 12, 2025, 6:49pm UTC](https://forum.lightburnsoftware.com/t/focus-test-z-axis-moves-but-fires-on-the-same-at-0/173436/1 "2025-06-12T18:49:39Z")

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I am stumped and can not seem to find any info. I have a OneLaser Hydra 9, Ruida Controller RDC6442G-LY-1G-GT5-DL. Using Both the Production Lightburn 1.7.08 and the PreRelease 2.0.00 RC-7. When I try to use the focus test feature or z-axis offset / steps in both… My Z-Axis goes up and down, but the laser only fires at the 0 so there is no actual focus test as each line fires on the same z level but the bed definatley goes up and down. Trying to use the z-offset and z step does the same. I know it’s some thign simple but for the life of me I can not figure it out nor can anyone else. I zero my lazer at every start, I have doen the ramp test and know what my focus is supposed to be but really trying to get the Z-Offset and Step Cutting thing working.

Attached Screen shots of everything I can think of. I have tired every combination of the z- control with no changes. Someone please help.

 ![Screenshot 2025-06-12 at 14.41.23](https://forum.lightburnsoftware.com/uploads/default/original/3X/4/e/4edb4e0326a6f097eb68a7cbf738e6fdeed06980.jpeg)  
 ![Screenshot 2025-06-12 at 14.42.15](https://forum.lightburnsoftware.com/uploads/default/original/3X/4/a/4a3591decc3f901d0e6e4436e94ff3563f21d217.jpeg)  
 ![Screenshot 2025-06-12 at 14.42.56](https://forum.lightburnsoftware.com/uploads/default/original/3X/b/5/b5a8338cf970fcb1775686ae27bdb144a940717f.jpeg)  
 ![Screenshot 2025-06-12 at 14.43.40](https://forum.lightburnsoftware.com/uploads/default/original/3X/7/5/758989da2f8c868f4245c1411f28a39ecb92b410.jpeg)

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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 12, 2025, 6:50pm UTC](https://forum.lightburnsoftware.com/t/focus-test-z-axis-moves-but-fires-on-the-same-at-0/173436/2 "2025-07-12T18:50:23Z")

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Closed on July 12, 2025, 6:50pm UTC

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