Questions tagged [bltouch]

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

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Printer keeps going down when BLTouch activates during auto homing (4.2.2 board)

When I auto home my Ender 3 Pro, it does its usual thing where it goes to the corner and then comes to the middle. Although, when it goes down and the BLT activates, the nozzle keeps going down ...
LionelF's user avatar
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-1 votes
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46 views

After installing the BLTouch, why won't my Ender 3 move down when attempting to level the bed?

Recently I bought the BLTouch V3.1 for my Ender 3. I have a 4.2.2 board so I downloaded the Ender-3Marlin2.0.6HW4.2.2BLTouchGD firmware. When I go to auto bed level, the nozzle makes its way to the ...
Ethan Tabiadon's user avatar
1 vote
1 answer
40 views

Poor first layer even after careful calibration

I am using Klipper on a modified Wanhao Duplicator i3 (Monoprice Maker Select V2) featuring a BLTouch probe. I am working through the painstaking process of bed leveling, but even though Klipper seems ...
rgov's user avatar
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1 answer
57 views

What do I need to configure to get Marlin to run an Ender 3 Pro with CR Touch?

I have an Ender 3 Pro, board version 4.2.2, and a CR Touch with 5 pin connector. I also removed the z-axis endstop connector at the endstop. I've been building and flashing Marlin 2.1.2.2, but I haven'...
ttshaw1's user avatar
  • 11
-1 votes
0 answers
20 views

Weird bed leveling issue

To start, here's what I'm working with: Ender 3 pro fitted with a BL Touch, Creality firmware 2.0.8.2, Octoprint and Bed Visualizer, Cura 5.2.1. Slicing a 200 mm square crosshair file to test/center ...
danf's user avatar
  • 1
0 votes
2 answers
136 views

What's the accuracy and reliability difference between BLTouch, CRTouch and 3D touch?

What are the differences between the bed leveling probes BLTouch, CRTouch and 3DTouch in terms of reliability and accuracy? Is there some kind of benchmark available? Also, how often should the ...
Bob Ortiz's user avatar
  • 1,053
2 votes
1 answer
107 views

How can microswitch-based automatic bed leveling probes be possibly reliable and accurate?

I just discovered automatic bed leveling (ABL) probes that only use a microswitch. For example, the FreeABL as shown below: Source: Thingiverse.com Or, the magnet mounted KlackEnder as shown below: ...
Bob Ortiz's user avatar
  • 1,053
1 vote
1 answer
112 views

Is the BFPTouch interchangable with the BLTouch for mriscoc firmware without custom changes to Marlin?

I have two Creality Ender 3 V2 printers with a version 4.2.2 board. One printer has the official CRTouch, and one is nearly original without a probe. I found a similar product, a DIY project called ...
Bob Ortiz's user avatar
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1 answer
103 views

Ender 3 v2 with CR Touch/BLTouch moving down but not up

My Ender 3 v2 with a CR Touch/BLTouch installed is only moving down, but not up! The display shows P Endstop when I try to move below around halfway up the gantry. ...
zurgeg's user avatar
  • 123
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646 views

Absolute Z values not 0 at print surface after auto homing with CR-Touch

I recently installed the CR-Touch onto my CR10-V3 printer. I updated my firmware to Marlin 2.1.2M and set my probe offsets and selected level bed which checked 81 points on the print bed and it said ...
TJR's user avatar
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1 answer
62 views

G29 Sometimes fails - Defective probe?

I have the issue that G29 does work as expected but then fails a couple of times at different measuring points after taht it succeeds again. So I decided to enable ...
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0 answers
75 views

Problems with BLTouch on Ender 3 Pro

I have had some issues with my Ender 3 Pro (v4.2.2 motherboard). The BLTouch decided to just probe the air. It had been working quite fine until one day when it stopped. IDK if this helps, but I have ...
Charlie Nicholson's user avatar
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1 answer
2k views

Should I calibrate Z-offset so that Z = 0 has the nozzle touching the bed?

When calibrating my printer and configuring my slicer there are many different values that can affect the final distance between the print bed and the nozzle for the first layer. I'm trying to figure ...
Patrick Rogers's user avatar
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204 views

Ender 5 S1 has bad printing quality

So I am relatively new to 3D printing. I have had a few successful prints but over the last few prints, the quality worsened! I am getting these weird holes in my prints. I am using gray creality PLA (...
Davide_24's user avatar
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138 views

CRTouch on SKR 1.3 with BTT TFT24

I upgraded my old Creality CR10s Pro V1 with the BTT SKR 1.3 with A4988 stepper drivers and the BTT TFT24 combo lcd screen. Everything connects and responds, but the CRTouch unit does not even power ...
WolfMaster's user avatar
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1 answer
1k views

Ender 3 BLTouch not working with BigTreeTech SKR mini e3 or stock motherboard

When my Ender 3 was on the stock motherboard, I went through two BLTouch sensors. In both cases, we had the same result: sometimes, when homing with the sensor, the printer would jam the gantry down ...
user1833028's user avatar
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0 answers
202 views

Z-offset making no difference

I have an Ender 3 V2. I flashed it to TH3D Unified Firmware 2.62 and installed a BLTouch. It appears to be working, if I auto-home it, the probe is activated and the print head retracts. Problem is ...
James Winters's user avatar
1 vote
0 answers
298 views

Ender-3 Pro Factory reset/BLTouch Setup

I bought the BLTouch and followed the instructions to install it, but it ended up not working. After installing the new firmware, the screen started bugging out (pixels being out of place, always ...
BobbyWasbi8311's user avatar
1 vote
2 answers
210 views

How to see BLTouch probing results?

How do I view the results from the BLTouch probing on my Ender 3? I have set up all the firmware and installed the BLTouch fine and it works as expected. But how am I able to see the results of the <...
Bradiographer's user avatar
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1 answer
235 views

Ender 3 Pro not auto homing

I have had my Ender 3 Pro for roughly a year now and have decided to make some upgrades. I recently upgraded to a BLTouch and silent board. I am having a problem auto homing where the printer does its ...
bezly's user avatar
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1 vote
0 answers
316 views

X-Axis out of whack. Print head crashing into bed during auto home

I have been able to print for almost a year, then it began to fail. When I select Auto level from the LCD Screen, the print head moves to the front left, hovers the probe in the air, which causes the ...
Bruce's user avatar
  • 19
2 votes
2 answers
8k views

CR Touch under Marlin for Ender 3

Just came to the 3D printing world and after installing Marlin 2.1.2 firmware in my Ender 3, which took a while and was finally completed following this tutorial: I ...
Diego Manzanares's user avatar
2 votes
2 answers
8k views

Filament not sticking to bed/nozzle too high

Brand new Ender 3 V2 Neo with CR Touch. Set printer up, switched on, ran bed levelling as per instructions, and tried first print. Filament is not sticking to bed. I noticed that the nozzle is approx ...
Dinglezak's user avatar
0 votes
1 answer
2k views

CR Touch install help

I bought my son an Ender 3 Pro and a CR touch. I am trying to get this setup to print for him despite having zero experience with 3D printing and at a loss with the installation. Here are the details: ...
tmarrs1's user avatar
1 vote
1 answer
1k views

How to determine correct firmware for Creality MB and BLTouch?

I bought motherboard version 4.2.7 and had BLTouch version 3.1 Printer version is probably Creality Ender 3 Pro (although I don't know how it can matter if I got brand new motherboard from Amazon). On ...
Dims's user avatar
  • 225
1 vote
1 answer
6k views

Why is the pin, which is intended to control the BLTouch, marked "IN" on Creality board?

I bought a new 32-bit board for my old Creality printer, and now I am going to connect my old old BLTouch sensor to it. I got some instructions from the internet and found that it needs to be ...
Dims's user avatar
  • 225
1 vote
0 answers
242 views

Custom Marlin update for Ender 3 Pro results in Z minimum endstop for autohome and Z move in negative direction

Good day, I bought an z axis extension kit for my ender 3 pro and therefore needed to update marlin by myself. I am using the sd card for firmware flashing. OctoPrint is connected via usb. The ...
Scutz's user avatar
  • 11
3 votes
1 answer
303 views

Ender 3 first layer inconsistent layer lines

I was running my Ender 3 just fine with good first-layer adhesion/everything else but my setup changed after my Pi SD card got corrupted so I had to re-install and reconfigure my bed leveling via ...
Cody Duong's user avatar
2 votes
0 answers
270 views

BLTouch on Bed Leveling check don't move left after point 6

My Setup Ender 3 BTT SKR Mini E3 v1.2 with BLTouch Marlin v2.1.x Problem Captured it here (short video): When Bed Leveling, the print head doesn't return left on the X-...
Eran Lahav's user avatar
1 vote
1 answer
1k views

Why does the ZAxis not move when I autohome when using the BTT as a probe and the SKR e3V3 image?

I have a printer with a v3.1 BLTouch and a BTT SKR mini E3 V3 and I can't get the BLTouch to work as a probe while homing. I have tried both of the images provided here and both cause the BLTouch to ...
Jackie's user avatar
  • 183
0 votes
0 answers
848 views

The "auto home" function doesn't work with the CR Touch

I installed a CR Touch on my Ender 3 Pro and then I installed the file Firmware-bltouchbin for the motherboard I have (a BTT SKR mini e3 V2). If you home the ...
Sjoerd Van Der Eerden's user avatar
0 votes
0 answers
3k views

Creality CR Touch not precise enough

I have the problem that the bed auto level functionality is working but not precise enough so that the first layer doesn't stick everywhere and the "paper sheet check" for each corner gives ...
veio's user avatar
  • 101
2 votes
1 answer
3k views

Heating Failed: E1 after upgrade to 4.2.7 motherboard - Ender 3 Pro

I upgraded my Ender 3 Pro from the stock 8-bit motherboard to a new 32-bit 4.2.7 motherboard. No problems were encountered with the swap, flashing of the new firmware, or calibration. When I went to ...
codingCat's user avatar
  • 131
2 votes
0 answers
217 views

BLTouch probes off the print bed

I have just upgraded my mobo to a Duet 3 WiFi clone (FLY-RRF-E3) and installed a BLTouch. When I try to run true bed leveling the Touch probes off of the bed like in the Reddit post "Ender 3 ...
quaternioneer's user avatar
1 vote
0 answers
524 views

BLTouch fix for heated enclosure

I print using a heated chamber but need to use a BLTouch to level my print bed. I followed the pictures in the Reddit post "Bltouch working temperature and fail" and moved the brains of my ...
3dprintingguy432's user avatar
3 votes
0 answers
887 views

Installed BLTouch - what do I need to tell Cura? Just G29, or more to it?

I added a BLTouch to my Ender3v2. Yay! But my first layer is still as sketchy as it's ever been. I've got the firmware updated, and I can see the auto-level process take place at the beginning of my ...
kaltorak's user avatar
9 votes
2 answers
18k views

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 ...
deltree's user avatar
  • 339
1 vote
0 answers
23 views

Print stop/starts after 3Dtouch installation

Just installed and set up a 3Dtouch on my home-built Prusa. I followed several articles as well as YouTube videos. I can get ABL to work well but printing has become a problem. Each print starts then ...
Steve Holmes's user avatar
1 vote
1 answer
4k views

Nozzle scraping bed on Ender 3 with CR Touch

I just got into the world of 3D printing and I'm extremely new to it and everything related and I'm not 100 % sure what I am actually doing (like all the code stuff too). I did one successful print on ...
kahalani's user avatar
0 votes
1 answer
725 views

Bed leveling suggestions given this mesh generated by BLTouch

The printer is a Creality CR-10 S5. Marlin 2.0.7.2 Here is the highest point. Deepest valley Further the leveling screws on the right X0,0 and X=0, Y=467 are barely at the very bottom of the screw. ...
cybernard's user avatar
  • 295
1 vote
1 answer
1k views

When Z-axis is autohoming the print head moves too far to the right and starts grinding

Installing BLTouch on Ender 3 with SKR Mini E3 v2 motherboard, flash the firmware and do the first autohome, X and Y-axis autohome to the endstops just fine, but then the print head moves to the ...
Drethapid's user avatar
1 vote
0 answers
319 views

Marlin + BLTouch layer compression

I have an Ender 3 Pro which I recently added an SKR Mini E3 v2.0 with Marlin and BLTouch. I have run into an odd issue where roughly the first 10 mm of the print are compressed into ~7 mm of Z height....
Bob's user avatar
  • 119
1 vote
1 answer
575 views

Ender 3 with BLTouch ignores Z0

I have a problem with my E 3nder3 (3DTouch, Skr mini e3 v1.2, Dragon hotend with afterburner mount, other parts are original), where after using ABL, at the start of the print the Z-axis just seems to ...
Syns's user avatar
  • 63
2 votes
1 answer
790 views

Only Z offset for BLTouch?

I'm having a hard time getting my Ender 5 Plus (I'm using stock firmware 1.70.2 BL) trammed and in the pursue of that I decided to check my probe offset values. As it seems there is only a Z offset ...
user avatar
0 votes
1 answer
3k views

G29 UBL G-code - every request levels bed? [duplicate]

Every time I issue a G29 command the printer runs through all its multi-point/probing bed leveling routine. Is this normal? or can I issue one ...
JRP's user avatar
  • 1
0 votes
1 answer
241 views

Ender 5 BlTouch Install

I just installed a BLTouch on my Ender 5 but I'm having trouble installing/editing the firmware. After watching a few YouTube videos, I figured going to the GitHub BTT Marlin repository (because I ...
Carter's user avatar
  • 317
2 votes
1 answer
3k views

BLTouch not working on Creality Ender 3 Pro

When starting the printer, the bed leveling sensor does its little startup thing and then lights up static red. When pressing "Level Bed" or "Auto Home" it homes X and Y and after ...
Ee0Rk's user avatar
  • 31
0 votes
1 answer
222 views

Wires in BLTouch connector are loose, how to fold a crumpled pin

I'm trying to install BLTouch on my Ender 3 Pro but I've been pulling the cables in and out so many times that crimp pins (I think that is what they are called, I mean the little metal bits crumpled ...
Piotrekdoro's user avatar
3 votes
1 answer
1k views

Using the BLTouch to assist with manual bed levelling?

I struggle with paper levelling and find it to be excessively coarse and unspecific. I bought a 3DTouch, but I still need to make the bed generally level using the knobs. Otherwise, the print will be ...
geekgeek4's user avatar
  • 161
0 votes
1 answer
3k views

Why is my 3D printer making a loud knocking sound after installing BLTouch?

Everything was working perfectly until I installed the BLTouch. After installing it every time I print it makes a loud knocking/clicking sound. Does anyone know how to fix this? I am using a Neptune 2 ...
Nela Aguilar's user avatar