Questions tagged [bed-leveling]

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

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13
votes
1answer
33k 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 ...
9
votes
3answers
34k 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 ...
8
votes
3answers
1k 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 "...
8
votes
1answer
345 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 ...
8
votes
2answers
23k 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 ...
7
votes
3answers
11k 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 ...
7
votes
2answers
29k 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 ...
7
votes
1answer
24k 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 ...
7
votes
6answers
16k views

BLTouch Probing Fails Intermittently

I just installed my (v3) BLTouch 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 ...
7
votes
1answer
4k 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 ...
7
votes
1answer
1k views

Marlin's bed leveling Mesh Validation Pattern ignoring home offset

I'm using a Prusa clone with Ramps 1.4, Marlin 1.1.5 and an inductive proximity sensor Z-probe. Due to the design of the printer, the X and Y end-stops and the Z-probe are not exactly aligned with the ...
6
votes
1answer
12k views

What is the difference between M420 S and M420 S1?

I have been reading through the Marlin website about ABL (Auto Bed Leveling) and I see what appears to be conflicting information. At https://marlinfw.org/docs/features/auto_bed_leveling.html it ...
6
votes
3answers
5k 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 ...
6
votes
2answers
9k views

Nozzle jumps off the bed when using Marlin Mesh Bed Leveling

I am using Marlin firmware with a RAMPS board on an Anet A8 printer. The bed size for the printer is 220 x 220 mm and that is stated in the configuration.h file. ...
5
votes
1answer
647 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 ...
5
votes
3answers
5k 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 ...
5
votes
1answer
12k 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 ...
5
votes
2answers
3k 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
votes
2answers
4k views

Auto leveling with Marlin and RAMPS 1.4 does not work

I configured Marlin 1.1.3 for auto-leveling with a fix mounted sensor connected to the Z end-stop pin. I have the following settings in my config: ...
5
votes
1answer
606 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 ...
5
votes
1answer
447 views

Printrbot simple metal not auto leveling

I have a printrbot simple metal with the heated bed upgrade. Its been working fine until Cura updated, now, after the x,y, and z axis zeros, the print starts without moving to the other corners and ...
5
votes
1answer
2k views

Problem with print bed height on Creality Ender 4

I am a novice to 3D printing and have encountered an issue that I cannot seem to solve. Hopefully someone here can point me in the right direction. I have a Creality Ender 4 that I purchased a few ...
4
votes
4answers
1k 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 ...
4
votes
2answers
3k 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 ...
4
votes
1answer
2k 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 ...
4
votes
1answer
35k 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 ...
4
votes
1answer
6k views

BLTouch not leveling

I installed a BLTouch V3.1 on my Ender 3 which is using Marlin (bugfix 2.0.x) off a Skr mini e3 v2.0. I updated the firmware using a teaching tech video. I'm having trouble when using bed leveling. It ...
4
votes
2answers
1k views

G28 ignoring Z-Probe X/Y Offsets

I recently installed a SKR 1.3 Board with a 3DTouch-Probe on my Creality Ender 3 Pro. The probe works, G29 does its magic, but: If i issue a plain ...
4
votes
2answers
3k views

Assisted manual levelling with Marlin

Marlin offers a bunch of different choices for auto-levelling and assisted manual levelling for bent build plates (mesh levelling), but for the moment I want to level things completely manually. That ...
4
votes
1answer
60 views

Marlin is restarting when pins 5 Vcc are enabled and has a servo motor connected (RAMPS 1.4)

My printer uses an ATMega 2560 with a RAMPS 1.4 shield, A4988 stepper drivers and a 2004 controller LCD interface. The PSU is 360 W (12 V, 30 A). I bought a BLTouch for my printer, but when installing,...
4
votes
2answers
156 views

What are my options if I want to install a bed levelling sensor capable of operating at 100 °C?

I currently use a BLtouch 3.1, which is known to stop operating at about 35-40 °C. In fact, when I preheat the bed at 100 °C close to the probe, I sometimes get issues with the pin not retracting ...
4
votes
1answer
1k views

Ender 3 Distorted Calibration Cube

Issue: My Ender 3 is creating distorted prints with layer separation and deformations. Can anyone point me in the right direction? Setup: Ender 3 TH3D EZABL Auto Bed Leveling 1.75 mm ABS filament (...
4
votes
3answers
2k 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 ...
4
votes
3answers
6k 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 ...
4
votes
1answer
5k views

Klipper doesn't seem to adjust Z after BED_MESH_CALIBRATE

My rig: Ender 3 BLTouch Octopi Klipper Solid bed mounts I've updated my start G-code from Cura to include a G29 right after G28...
4
votes
0answers
71 views

Marlin 2.0 Firmware temperature jumping on LCD when trying to configure UBL

Flashed Marlin 2.0 on my Folgertech 2020 Prusa i3 variant. Calibrating seems to have gone smoothly until I tried to set up UBL. Saved the mesh into EEPROM with the ...
3
votes
2answers
2k 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 ...
3
votes
1answer
359 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 ...
3
votes
1answer
663 views

Using auto-bed leveling, do I need to initiate G29 before every print?

Various methods to scan the top surface exist to improve the bed adhesion to prevent prints to come loose from the bed during printing: e.g. BLTouch and clones or inductive and capacitive sensors/...
3
votes
1answer
78 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 ...
3
votes
2answers
106 views

Nozzle height adjusting for every print

I'm new to the 3D printing world and got my first Ender 3 (with the 32-bit controller board). I have a problem with every single print. I've upgraded to the newest Marlin firmware, did the mesh ...
3
votes
2answers
2k 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 ...
3
votes
1answer
960 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 ...
3
votes
2answers
105 views

Does shimming my build surface compete with spending a bunch more money and time on an auto-leveling system?

I've had my Ender 3 for almost three weeks, gone through about a kilogram of PLA filament (printing a mix of upgrade parts for the Ender 3 and stuff I actually want to use) and made one PETG object, ...
3
votes
1answer
94 views

Probe instead of nozzle centres on the bed

Problem is that the probe is in the center of bed instead of the nozzle. How fix it on my Tronxy X5SA? Those are my current settings and the nozzle is shifted from the centre (X: 35 mm, Y: 3 mm): <...
3
votes
1answer
9k views

Where to define grid for bilinear levelling in Marlin

I'm using firmware Marlin 2.0.3 on an Anet A8 printer. I'm using a Roko SN04-N NPN bed leveller. I've managed to set up 3 points bed levelling but I wanted to try the bilinear levelling. Issue is, ...
3
votes
2answers
3k views

Ender 3 with BLTouch prints slanted lines

I'm having a problem getting a clean first layer on an Ender 3 with BLTouch auto bed leveling. Thickness seems to fluctuate all over the bed, but in a consistent (repeatable) way. Here's my attempt to ...
3
votes
1answer
53 views

What can cause the center of the bed to be higher than the sides?

I find it impossible to level the printer recently. I read a couple of articles on bed warping but that refers to having the center of bed lower than the sides (collapsing on its own weight warm up ...
3
votes
1answer
86 views

Ender 5 hotend and bed cooling down while auto bed leveling

I have an Ender 5 with an auto bed leveling sensor (TRU-LEV 600). It is working fine, however, as the sensor probes the bed, the nozzle and the bed cool down and are not staying heated as it is ...
3
votes
1answer
3k views

How to address bed scratching on a Creality Ender 3

So bed scratching seems to be a real thing, and not a single post I've come across (I've looked at more than 30 by now) actually answers the question on exactly how to stop this. Now, I have an Ender ...