ABL offset guide including new probe Z offset wizard

ABL (auto bed levelling) is a great solution for a warped bed, allowing perfect first layers on your 3D printer. If you don't dial in the probe to nozzle offset however, your ABL won't function as it should. In this beginner's guide, we go through how to calculate and input your probe X, Y and Z offset. We also try out the new probe Z offset wizard.

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[Eyenstein-exvw]

I was going crazy trying to get my unleveled bed calibrated. You sir, are a gift to humanity.

[andreaudio]

I found an easier way to measure nozzle to probe offset.
I just cut one piece of cardboard to the size of the print bed, than secure it to the bed with clips.
Than I manually deployed the probe and slowly moved Z axis until the pin barely touches the cardboard and I marked the exact spot with a pen.
In the next step I retract the probe and slowly moved the Z axis up. Just enough to have the nozzle punching a little mark at the cardboad.
Than I just moved the bed down and got a nice print of 2 points to measure it with the calipers without any hassle.
I hope this helps others. I love your content.

[geologist_luna]

I can't even thank you enough for all the help you have provided with all of your videos. I honestly don't know what I would have done without you and your videos! Thank you so much again and again!

[mikazeo]

I've just started 3d printing a month ago with my stock E3 Pro, and to be honest the first couple of runs I had were really rough for me. Thank you so much for your guides as I've grown really fond of using my printer alot more. Thank you for putting time and effort to teaching Noobs like me to better use my printer.

[LOLNOWAIBISH]

As someone new to auto bed leveling, this video was very, very well made and useful! Thank you so very much for your help in clarifying this process, hopefully I'll be up and running with a BL Touch on my CR-10 S5 soon. Cheers!

[mururoa]

Tip for measuring:
Lower the nozzle to about 3mm above the bed so you can fit a ruler (or angle square) under the tip; draw a line perpendicular to the edge of the bed; do the same for the tip of the BLTouch. Do this for both X and Y. You can now easily and precisely measure the distance between the lines drawn on the bed.

[famhendriks-bierman]

works perfect on my home rebuild tronxy x3 with Marlin 2.0. After flashing the tronxy firmware i had a lot of issues to get marlin to work gladley there are a lot of yuotube chanels to refer to including al your films about the subject. Thanks for that It works now perfect. Better then the original x3.

[bonux]

You sir just made me save an amount of time that has no other equal but my gratitude to you. Thank you so much for the clarity of your video. State of the art.

[ChristopherSchulze-ds]

I really liked your instructions. The problem I finally figured out was I needed to add a little weight to the probe. I used a small rubber washer used on archery strings to add just enough weight to the shaft (that was designed to be metal) so it would drop properly and ON TIME! Once that was fixed it is running very nice! Thanks again!

[BrianBoyer]

Very nice! I've been using paper along with the nozzle and touch tip to mark dots, connect them, then just measure the distance on the paper. I have unsteady hands so it became my workaround 👍

[Doyle]

Thank you very much for covering the Wizard probe as requested, the whole video was very informative and explained other things I didn't know.
Thank you again for help and service you provide, and for the little shout out, much appreciated.

[rlaxton]

Started following the steps, then realised that I was back a version and this motivated me to upgrade from 2.0.6 to 2.0.7. Once I had done this, I found the process pretty simple.

Definitely an improvement on the struggles that I was having previously with trying to babystep. This process is easy and quick enough that running it when I change nozzle sizes will be a breeze.

[djnelo]

Por fin alguien que explica bien en que consisten los parámetros. Gracias por tu video!!

[xXxGuilhermeB]

I believe the z offset wizard expects you to lower the nozzle until it touches the bed and not some paper-thick distance from it. If you look at the values on the wizard at the moment you press "done" and look at the calculated value it puts on the z-offset value, you can see it doesn't account for any thickness added by the paper nor could it since there is no place to tell it how thick the paper you're using is. I think the correct way to use the wizard is to either lower the nozzle until it touches the bed, or do it like you did but then you have to go to the value the wizard put on the z offset and subtract the thickness of the paper. So if it puts -2.25 you change it to -2.45 it the paper is 0.2 mm thick.

[jamescullins]

Looks to me like it would be easier to set the offset by homing all axis. Your x, y DROs will read 0, 0 then use a sharpie to make an x under the tip of the nozzle then jog over until your probe is over the marked x on then read your offsets directly off the x, y DRO on the LCD.

[AlexJoneses]

This would've video been extremely helpful a few weeks ago. The best thing that I've learned is: if you're nozzle is too far from the build plate when printing, decrease (into the negatives if needed) the nozzle to probe z offset, and increase it if it's too close

[chllgy]

OMG dude your the best Ive been compiling marlin for days and finally you advice on how to manually input the offsets fixed my problem marlin wouldn't apply the offset in firmware but the software fix worked!!!

[Twin_Flyer]

Amazing! i installed an SKR Mini E3 V1.2, compile the firmware for the BLTouch and have been using it for months. Never new the Wizard even existed till i saw this video and sure enough, its enabled! Worked like a charm, thanks! Must have done something right when I made it lol

[bobanthony]

Very clear and well put together guide that I direct others to frequently. However, I always have to preface that they need to account for the thickness of the gauge that they are using to set the offset. I also explain that when the z axis is moved to zero, the nozzle should just be touching the build plate and not pressing on it.

[jjclarkson]

Good video! Especially helpful to show the configuration_adv.h setting required to save the live babystepping. Keep up the videos!