# TAZ 3 & 4 bed auto leveling
**URL:** https://forum.lulzbot.com/t/taz-3-4-bed-auto-leveling/651
**Category:** Hardware
**Created:** [June 18, 2014, 5:21am UTC](https://forum.lulzbot.com/t/taz-3-4-bed-auto-leveling/651 "2014-06-18T05:21:07Z")
**Posts on this page:** 9
**Page:** 1
### Author:  [@yruzin](https://forum.lulzbot.com/u/yruzin)
#### Post date: [June 18, 2014, 5:21am UTC](https://forum.lulzbot.com/t/taz-3-4-bed-auto-leveling/651/1 "2014-06-18T05:21:07Z")
For lucky owners of TAZ 3 & 4 who want to setup bed auto leveling I wrote a blog post.
The major gap is that current firmware doesn’t support G29 command to do the bed probing.
In my blog I’m posting Marlin firmware that works on TAZ 3 and most likey 4 and supports G29.
[http://blog.yuliyruzin.com/2014/06/lulzbot-taz-3-bed-auto-leveling.html](http://blog.yuliyruzin.com/2014/06/lulzbot-taz-3-bed-auto-leveling.html)
Best,
Yuliy
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### Author:  [@Orias](https://forum.lulzbot.com/u/Orias)
#### Post date: [June 18, 2014, 4:18pm UTC](https://forum.lulzbot.com/t/taz-3-4-bed-auto-leveling/651/2 "2014-06-18T16:18:32Z")
Sweet!
Do you have a video you can share of it in action?
Thanks!
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### Author:  [@yruzin](https://forum.lulzbot.com/u/yruzin)
#### Post date: [June 19, 2014, 9:51am UTC](https://forum.lulzbot.com/t/taz-3-4-bed-auto-leveling/651/3 "2014-06-19T09:51:33Z")
Here is the video
[http://youtu.be/xgNmnaKxZTY](http://youtu.be/xgNmnaKxZTY)
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### Author:  [@bam](https://forum.lulzbot.com/u/bam)
#### Post date: [June 19, 2014, 2:00pm UTC](https://forum.lulzbot.com/t/taz-3-4-bed-auto-leveling/651/4 "2014-06-19T14:00:31Z")
Heyo, bam from Lulzbot here
here’s a link to a modified slider bar that should work with 1013’s excellent mod and the stock x-ends :
[http://devel.lulzbot.com/TAZ/accessories/1013\_bed\_leveling/](http://devel.lulzbot.com/TAZ/accessories/1013_bed_leveling/)
You may need to modify the x coordinates of the startup g-code that determine the extend and retract positions here:
G1 X276 F11520; go to probe deployment position
G1 X292 F350; deploy probe
and here:
G1 X14 F11520; go to probe retract position
G1 X0.5 F350; retract probe
but then you should be good to go 🙂
Let me know if it works for you, I can modify if needed
Happy printing!
-Bam
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### Author:  [@yruzin](https://forum.lulzbot.com/u/yruzin)
#### Post date: [June 22, 2014, 5:23pm UTC](https://forum.lulzbot.com/t/taz-3-4-bed-auto-leveling/651/5 "2014-06-22T17:23:09Z")
Thank you Bam, this works perfectly.
Here is new video that shows how probe retraction works now
[http://youtu.be/2lIOveNxlSY](http://youtu.be/2lIOveNxlSY)
Also, do you know how to fix the bolt that holds the probe, after a few deployments and retractions of the probe it becomes loose?
Best,
Yuliy
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### Author:  [@ray](https://forum.lulzbot.com/u/ray)
#### Post date: [April 29, 2015, 5:24pm UTC](https://forum.lulzbot.com/t/taz-3-4-bed-auto-leveling/651/6 "2015-04-29T17:24:15Z")
SWEET
> [@yruzin](#):
>
> Thank you Bam, this works perfectly.
> Also, do you know how to fix the bolt that holds the probe, after a few deployments and retractions of the probe it becomes loose?
> Yuliy
This may be silly, but, threadlock?
Well done!
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### Author:  [@Spineless](https://forum.lulzbot.com/u/Spineless)
#### Post date: [July 24, 2017, 8:54pm UTC](https://forum.lulzbot.com/t/taz-3-4-bed-auto-leveling/651/7 "2017-07-24T20:54:48Z")
This looks really nice and refined. I would like to try and implement the auto leveling design. However, your blog post is not available. Can you put it on the Lulzbot forum?
😃
Spineless
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### Author:  [@piercet](https://forum.lulzbot.com/u/piercet)
#### Post date: [July 24, 2017, 9:45pm UTC](https://forum.lulzbot.com/t/taz-3-4-bed-auto-leveling/651/8 "2017-07-24T21:45:38Z")
> [@Spineless](#):
>
> This looks really nice and refined. I would like to try and implement the auto leveling design. However, your blog post is not available. Can you put it on the Lulzbot forum?
>
> 😃
>
> Spineless
You know thats from years ago right?
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### Author:  [@Spineless](https://forum.lulzbot.com/u/Spineless)
#### Post date: [July 24, 2017, 9:49pm UTC](https://forum.lulzbot.com/t/taz-3-4-bed-auto-leveling/651/9 "2017-07-24T21:49:17Z")
Ya I know… But I have a Taz4 I want to upgrade with auto leveling. I guess the real work is done by the g29 firmware. I am looking into that now.
This is new to me. I am just getting myself up to date. If you dont have anything. That is fine. I am still looking around.