3D Printing Stack Exchange
3D Printing Stack Exchange

Questions tagged [bltouch]

For questions about the BLTouch automatic leveling sensor for 3D Printers.

BLTouch is an auto leveling sensor for 3D Printers that can precisely measure the tilt of the bed surface. It works with any kinds of bed materials, such as glass, wood, metal, etc.

From BLTouch :: Auto Bed Leveling Sensor for 3D Printers

Features
Main functions and controls of BLTouch are the same as usual auto bed leveling sensor, consists of RC servo and micro switch. Thus, BLTouch can be applied on almost every board.

BLTouch is fulfilled with simple structure and high precision by using progressively designed solenoid and hall sensor. It aims for user convenience and enjoyable printing by adding many smart functions, such as self-test, alarm, alarm release & Touch Switch mode, Blue LED for servo signal indicating and Z-probe(Zmin) Testing.

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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 probes (successfully) but then tries the fourth…
Blubberguy22
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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 changing that?
Tanner D
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Configuring BLTouch with Marlin firmware

Has anyone configured BLTouch with Marlin firmware? I could only find videos about older firmware version. I followed this document. To avoid causing any damage to the printer, I removed all connections, took the board out and connected a stepper to…
Athul
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Configuring Marlin 2.x with Ender 3 4.2.2 and BLTouch

I bought an Ender 3 recently and it has the 4.2.2 Creality board. Then I bought a BLTouch to upgrade it with bed leveling. It turns out that the BLTouch now comes with a standard 5-pin connector instead of the separate wires that all the tutorials…
deltree
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BLTouch not probing all points and motors making really loud noises since rebuild of latest Marlin (new hot end installed and BLTouch)

Please listen to this video, which illustrates the issue, with the sound on. Link to configuration.h and configuration_adv.h Machine Ender 3 Pro, New E3Dv6 hotend on a BMG Wind (all has been working and printing PLA, PETG, and TPU fine until I…
John Spencer
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Automatic Bed Leveling (ABL) with a sensor (BLTouch, inductive, capacitive), how does it work?

A frequently discussed update to a 3D printer is the so-called leveling sensor; this sensor can be inductive, capacitive, optical or mechanical (i.e pressure or physically touching, like a BLTouch). It is supposed to level your bed, providing …
0scar
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Saving BL Touch settings

I have an Ender 3 Pro with a BL Touch. In my G-code should I add an M500 after the G29, to save the results to the EEPROM? I know storage size is an issue, so does storing these results cause an issue? I believe the saved results can be activated…
Steve061
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What are the pros and cons of using a BLTouch in place of a limit switch?

This is about practicality. I'm hearing that people are using their BLTouch not to adjust the Z offset, but as the limit switch for the machine! Why is this so? What are the pros and cons of using a BLTouch (or any touch sensor for that matter) in…
user77232
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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 bed before the z-axis goes down for the second…
David Souza
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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 probe just covers a small area. I read that to…
Liam
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Creality Ender 3 Pro - Z travel issue with TH3D firmware

TLDR - I’ve just driven myself insane trying to fix what I thought was a physical problem with my Z-axis, but it seems to have been solved by switching from the TH3D firmware to the Creality firmware. I’m hoping someone can help me see where I went…
Lewis
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BLTouch always shows high on right side of the plate

My BLTouch was working great. Until one day, it just started showing the right side as being high on every read. I've tried leveling many times manually and with the BLTouch. But every time I use the bed visualizer, it shows high on the right. I've…
Robert Petty
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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, Marlin is restarting and is unable to complete…
wbrrtt
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Ender 3 Pro will not auto home correctly after mainboard & BLTouch upgrades

I made two updates to my Ender 3 Pro: Silent Mainboard and BLTouch. My printer head is way out of sync now. After I Auto Home, it moves along the X-axis to the left, hits the stop switch & moves back to the right. It does not move at all on the…
wallwalker
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BLTouch error causing bed and nozzle temp setpoints to change to zero

I replaced my CR-10 motherboard with no problems and ran fine for a few weeks, then decided to add a BLTouch. BLTouch was enabled from the config.h during compile. I had heating issues at first but eventually figured out I had the thermistors plugs…
rsadler
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