Questions tagged [bed-leveling]

Use this tag for questions regarding the manual or automatic leveling of the build platform.

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1answer
20 views

Setting the startpoint of the EZABL 3x3 mesh

How do I set the startpoint of the EZABL 3x3 mesh. The startpoint is hitting my bed clip.
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1answer
15 views

Printer doesn't lift Z between each probe

I don't remember making a change to marlin but today when I tried to probe my bed my Z probe homed and slowly went downwards until the probe detected the first point. then without lifting it it just ...
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3answers
147 views

Ender 3 BLTouch first layer problems

I recently installed an original BLTouch V3 on my Ender 3 pro and ever since I can’t seem to get a decent print. My first layers are horrible. The install wasn’t so bad, I really thought it would be ...
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0answers
37 views

Inconsistent Auto Bed Leveling - Having To Calculate Z Offset For EVERY Print

I am having a problem with my Flying Bear P902 3D printer where I have to calculate the Z offset for every single print. I calculate it using this method (and store it in EEPROM) : Link to ...
2
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1answer
105 views

Is having 4 bed leveling adjustment points rather than 3 problematic?

My Ender 3, and I think lots of printers, have 4 bed leveling adjusstments, one at each corner. It seems to me that having 4 points produces an over-determined system, making it confusing to get the ...
4
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4answers
669 views

Auto physical bed leveling?

I've never used a printer with auto bed leveling, but my understanding is that most or all of them don't actually level anything, but rather compensate for the unlevel bed in firmware by transforming ...
3
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2answers
70 views

BL Touch Probing Fails Intermittently

I just installed my BL Touch with a vanilla version of Marlin (1.1.9) on my Ender 3 and everything seems to work fine (including auto home) except the probing. It repeatedly does the first three ...
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1answer
55 views

How to connect BLTouch sensor to Alunar M508 using LSEE 3D v1.0 board?

In the process of updating my printer (Alunar M508), I decided to add "Auto Bed Leveling" using a BLTouch sensor. After doing a lot of Googling: I found firmware that will upload and work with ...
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0answers
84 views

Marlin Bed-Leveling Vs Skew Correction

I've added a G29 command in my starting script to do bed leveling process before every print. It works fine and compensates my bed during prints. But when I print larger models, they're all skewed in ...
4
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1answer
412 views

Why is the center of my glass print bed lower than the corners?

I have a new Creality Ender 3. I suspect that I have not adjusted the eccentric nuts correctly, on the X-axis head carriage mounts. Even after a glass bed upgrade, using the Level Corners routine ...
2
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1answer
60 views

BL-Touch bed leveling seems to produce tilted bed level around Y-axis

I have a Tevo Tornado that I've outfitted with an official BL-Touch auto level sensor. I can see the bed probing run, and I can see the Z axis slowly adjust during x/y moves, so it's doing something. ...
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2answers
229 views

How to connect optocoupler module to ABL sensor and Ender 3 board

I am trying to figure out how to wire up Auto Bed Leveling (ABL) on my Ender 3 using the optocoupler and inductive proximity sensor below. I cannot figure out how to wire it all together, all the ...
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1answer
1k views

How to increase the amount of probing points for a BLTouch sensor in Marlin firmware?

I have a new BLTouch that is setup (using Marlin 1.8.7) but I want to increase the probing grid from a 3x3 to something like a 5x5. I am using bilinear leveling with a 3x3 grid. How would I go about ...
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2answers
51 views

Auto bed leveling: systematic slope

I have a heavily modified DiscoEasy 200 from Dagoma, see picture: The heatbed is mounted on 4 springs, on top of the original plate. I made sure the X carriage was parallel to the table. I then tried ...
2
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1answer
48 views

Premium heated bed upgrade options?

The stock heated bed which came on my Creality printer is significantly warped beyond any simple leveling with the screws. Lets say I want to upgrade the stock bed to a premium heated bed, does such a ...
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0answers
37 views

PL-08N inductive sensor not turning off

I have one of these inductive sensors marked as PL-08N which should work within a 4-30 VDC range and trigger at 8 mm or ...
4
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1answer
312 views

Ender 3 Distorted Calibration Cube

Issue: My Ender 3 is creating distorted prints with layer separation and deformations. Example Here Can anyone point me in the right direction? Setup: Ender 3 TH3D EZABL Auto Bed Leveling 1.75&...
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1answer
137 views

Hooking up an optocoupler in a 24V Machine, is a 2 kOhm resistor sufficient?

I am going to buy an inductive probe for my Creality Ender 3 to enable ABL (Automatic Bed Leveling). And now, I have one last question left on my mind: I am going to buy a Vishay Optokoppler ...
3
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1answer
776 views

The BLTouch is hitting the bed on the double-probing

When double-probing, sometimes the BLTouch will hit the bed before the z-axis goes down: The BLTouch deploys The bed goes up The sensor triggers The BLTouch stows The BLTouch deploys and crashes the ...
3
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1answer
56 views

What exactly does calibrating a 3D printer do?

I’m building a 3D printer and need to understand what calibration and bed leveling is, and I was surprised to see there isn’t a clear explanation on the internet anywhere. Does bed leveling compensate ...
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1answer
1k views

How to set Z-probe boundary limits in firmware when using automatic bed leveling?

In setting up a probe for automatic bed leveling, the limits of the probing area must be entered in the firmware of a 3D printer. When using a sensor, how do you define the bed limits for the sensor ...
5
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1answer
2k views

Ender 3 distance between nozzle and bed changing on Y-axis

After I level my Ender 3, the distance between the nozzle and the bed seems fine on both ends, but moving the bed on the Y axis shows that it's increasing and decreasing for three times, which I just ...
1
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1answer
69 views

How to level bed after applying glue stick for bed adhesion

I'm pretty new to printing PETG, and my Creality Ender 3 now has a glass print bed. I've done some research, and it looks like a pretty bad idea to try and print PETG on a pure glass surface for fear ...
2
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1answer
681 views

Anet A8 with Marlin firmware: Auto Home is crashing into bed

I got things moving from the answer to a previous question. Now, since the base-video I'm following is non-English, I want the next phase fixed: Probing failed ...
4
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1answer
611 views

ANet A8 running Marlin v1.1.9 Auto Bedlevel with ROKO SN04-N

I'm trying to get the ROKO (SN04-N) sensor to work with my Anet A8. First of all, while trying to screw it to the extruder, I tightened it too much and sort of broke the acrylic plate... sort of. I ...
1
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1answer
38 views

Adhesion problem when printing calibration test

Here is my first attempt at printing a "Bed Leveling Calibration test". It obviously didn't come out as I would have hoped, but what can you say just looking at this picture? Is it possible to tell ...
2
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0answers
113 views

Bed leveling compensation not working! [closed]

I have a DIY 3D printer that uses a probe as z min limit and bilinear bed leveling. The problem is that bed leveling compensation sometimes doesn't work. This is in my starting scripts in Simplify3d: ...
2
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2answers
531 views

Problems with bed leveling of Creality CR-10 Mini

So I've had my CR-10 Mini for some months now, and I've been continually having strange problems with bed leveling. Basically, after leveling the bed and printing a part, the bed is no longer leveled ...
3
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2answers
297 views

I can't level my bed any more

I have a Monoprice Select v2 that I just bought less than 2 months ago. I've manually leveled it on several prints prior. I noticed a couple of holes in my print bed after my last print, like the ...
2
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2answers
365 views

Scratches in the build plate - How did this happen, and may it cause problems?

A couple of prints after leveling the bed (<10), I noticed some weird sound, and saw the nozzle scratching the build-plate. What is really weird, is that I noticed (My printer is in quite a dark ...
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1answer
254 views

Why does my DIY printer start printing in air?

I've built a DIY 3D printer similar to Prusa i3. It does homing and bed leveling very well with a PNP Lj12a3_4_Z_BY sensor using G28 and ...
2
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2answers
1k views

Automatic leveling probe offset; adjusting for one side ruins the other

When I adjust the probe offset to get the proper layer height and adhesion, one side is set right but the other doesn't work. If I decrease the probe offset (say -1.100 to -1.050) the right side seems ...
2
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1answer
7k views

How to set the boundaries for BLTouch probing

I have just installed the BLTouch on my Ender 3 running Marlin 1.1.9 and I want to set it up so the probing does the 9 points in a perimeter that uses most of the bed surface area. At the moment the ...
3
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2answers
1k views

Ender 3 Z-limit now unreliable - possible causes and solutions?

I had a couple of recent nozzle/bed crashes, so I now frequently do a manual bed levelling. I do these while the bed is heated to allow for expansion. Today i found, after levelling, a subsequent ...
7
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1answer
249 views

Tevo Michelangelo nozzle below build plate?

I got a Tevo Michelangelo as first 3D printer today and already got a problem with the bed leveling: The extruder nozzle is way below the build plate. (When I auto-home the axes, which I've done ...
4
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3answers
6k views

How to set the Z home offset

I have what I thought would be a simple question. I don't have an auto leveling probe, I do my leveling manually with 4 screws and a piece of paper (I measured the thickness to 0.1 mm). For the ...
3
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1answer
549 views

How do I add auto bed levelling to my Marlin-based CNC?

I just finished a CNC that uses Marlin Firmware. The dimensions of it are quite large (3200 x 2000 mm) and the table is not perfect. I'm thinking of adding a proximity sensor to store a mesh in the ...
5
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1answer
2k views

Issues with Auto Bed Leveling

I have enabled auto bed leveling on my 3D printer. I have used a 6-36 V inductive sensor with a 7805 voltage regulator running the sensor at 10.78 V. I am using Marlin 1.1.9. This is my configuration ...
1
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1answer
2k views

3DTouch sensor fails after probe deployment and triggering

I'm using a 3DTouch sensor (from Geeetech) on a self-build CoreXY printer (HyperCube Evolution). The sensor worked perfectly until not being used for a month. The symptoms are that it fails to deploy ...
5
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1answer
244 views

Does auto leveling result in sheared prints?

I asked this question as a small question under an answer of another question (How bed leveling is achieved without table screws?), but have been asked to post this as a separate question to answer it ...
6
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3answers
319 views

What exactly does automatic bed leveling do?

I get the concept of automatic bed leveling...the printer moves around the bed and uses a sensor to identify high and low spots, then "software compensates for differences". But what exactly does "...
6
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2answers
2k views

Will a glass bed warp as it is heated?

I purchased a glass bed to use with my still-in-transit Ender 3. Since the bed came in before the printer, I pulled it out and used a flat edge ruler to see how flat the glass surface is. It appears ...
3
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1answer
211 views

How bed leveling is achieved without table screws?

I have seen printers with table screws and bed leveling sensor and printers that have only bed leveling sensor (such as Prusa). So my question is how does the bed levelling work when there is only a ...
4
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2answers
1k views

BiLinear bed leveling

My G29 command reports +0.178 +0.281 +0.830 -0.614 -0.012 +0.371 -1.208 -0.849 -0.351 So should I tighten up the screw of the bed, close to 0,0 position or ...
3
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1answer
572 views

Marlin Firmware Auto Leveling only re-centers the XY-axis (Delta printer)

I'm trying to get my printer to auto level its bed, with Marlin firmware using the following: Printer: Kossel Linear plus (Delta 3D printer) Board: MKS Base V1.5 Firmware: Marlin customized I go ...
4
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1answer
301 views

Adhesion problem (heat bed or extruder issue)

I am having an issue with the transition from the first layer to the second. It seems that the first layer isn’t staying put on the hot bed and the extruder is dragging it around creating a ball of ...
4
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2answers
2k views

Z-Axis zero/home position is higher than the actual print starting position

I'm having an issue with my very first printer, a Monoprice Select Mini V2. After doing about 20 successful prints on it, the Z axis is suddenly acting very odd. When I 'home' the Z axis and move the ...
4
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2answers
1k views

Delta printer nozzle not moving square with a perfectly level bed (as if the bed is bent… but it isn't)

I've been having this problem with my delta 3D printer where my nozzle isn't moving flat with my print bed (as if the bed is bent) but I have used the edge of my steel ruler and it seems to be ...
5
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1answer
5k views

Adding extra Z-offset to bed for PETG in Slic3r

Having printed exclusively in PLA for the past year, I'm now looking at trying out PETG in order to print a set of spare parts for my new Prusa i3 mk3. I have bought a roll of PETG from Rigid.ink and ...
6
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2answers
7k views

Z Offset on autoleveling sensor setup

How does Z offset (M851) work with an auto leveling sensor? Does it add the Z offset to the offset of the G29 mesh? or the ...