Creality CR Touch Auto Bed Leveling Sensor Kit for 3D Printer with Metal Push Pin for Ender 3/Ender 3 V2/Ender 3 Pro/3 Max/Ender 5 pro/CR-10 with 32 Bit V4.2.2/V4.2.7 Mainboard

The Creality CR Touch Auto Bed Leveling Sensor is a game changer! I have two printers. One of them uses this CR Touch sensor, the other uses a BL Touch sensor. The CR Touch seems to be a bit higher quality. The probe tip is made out of metal, not plastic. Also, it appears that the design of the probe has improved over the years. I can see that there is now a nylon washer to absorb the shock of the probe tip retracting into its body. For me, it installed quickly and easily, and I get a perfect first layer every time. My favorite thing about this probe is its durability. A while back, I replaced my printer's extruder and had to reinstall the CR Touch. Well, I neglected to ensure that the cable to the CR Touch was well seated in it's connector and because of that, the probe deployed in the middle of a print, crashing into the model I was printing. Amazingly, this probe withstood that abuse and still yields repeatability test results within thousandth's of a millimeter! My one suggestion for the Creality team would be to make the probe's LED more visible (the LED is helpful, but it's in a charcoal black body, not nearly as visible as the one in the BL Touch sensor).

Works perfect would recommend to others perfect print quality very accurate and quiet

TL;DR : Can be tricky to install if you are not experienced in working around electronics or modifying firmware. If you can follow the online instructions, it’s well worth adding to your Creality printer.Let’s acknowledge the 500 pound gorilla in the room : the installation of the CR touch is not hard, but it isn’t easy either. If you find the good tutorials on YouTube, study them and follow them to the letter this should be relatively easy to install as far as the mechanical engineering goes.Then there is the software engineering in the form of the firmware upgrade that must be installed to take advantage of the new hardware you just installed. I opted to run with the Creality firmware just to get up and running as quickly and easily as possible.*** NOTE *** This is not a true bed leveling device. It can only compensate to a limited degree for the bed not being leveled. You will still need to level your printer’s bed manually to a pretty precise level BEFORE running the bed leveling software. Think of this as a finishing touch rather than the be-all-end-all.I use a feeler gauge and manually move the print head to a rough 3x3 grid to start the bed leveling process *AFTER* installing the CR Touch, but *BEFORE* running the software leveling. Once I am satisfied the rough leveling is pretty good, then I throw out the rest of the instructions. I don’t care what, there WILL BE DIFFERENCES between cold leveling and normal printing temperatures leveling, and the stock instructions and firmware will do the leveling cold. I will only run the software once everything has been up to printing temperatures for at least 10 minutes. Trust me - this will pay huge dividends later.The other thing you can do as part of running the bed leveling software is to take time and several prints to dial in your z offset. Despite all my careful planning and instruction I found on YouTube and the internet in general, I found the best settings for my Ender 3 v2 were several hundreds off what should have been optimum. Once I used trial and error to discover that “sweet spot” I marveled at how much better my prints have been compared to before the CR Touch.This is especially true for “calibration” prints like Benchy or the CHEP cube. Since getting dialed in, I stand all amazed at how nearly flawless the Benchy prints have cranked out by the v2. Smooth as silk, and nearly no stringing at all. All other prints are leaps in quality better than before I installed the CR Touch.All in all, it is very much worth the cost to upgrade your Creality printer with a CR Touch.

This is a difficult product to review. The hardware itself is fantastic. 5/5 stars. I worry that the ribbon cable from the sensor to the motherboard is a bit flimsy and hangs precariously close to the Y-motor, but some simple cable management should mitigate that.That said, the firmware implementation by Creality is just abysmal. Depending on which of Creality's three different websites I checked, I found no fewer than three different firmware editions that appeared to be correct for my Ender 3. The first two bricked the machine, to the point it wouldn't boot. The third would boot, but left the screen scrambled. As of January 1, 2023, there appears to be no official working Ender 3 firmware support for the CR Touch.I finally stumbled upon the 3D Printscape website and YouTube videos. This guy is an absolute godsend. He has diagnosed the problem with the current firmware and re-compiled a working version. If you have the scrambled screen issue, I would suggest searching for "cr touch firmware scrambled screen" and working through his library of videos on the process.Installation is not difficult at all if you can find good instructions. Unfortunately, that is somewhat out of Comgrow's hands. Comgrow can't point to a specific firmware, as Creality could upgrade firmware at any minute rendering their recommendation obsolete. To their credit, Comgrow support did try to assist with the issue. I just found 3D Printscape before they were able to solve it.Unless Creality gets their act together, successful installation is a matter of good searching skills and a bit of luck!

Nicely engineered. Has a metal measurement pin, so should last longer than the BL Touch plastic type. They can't use metal as it would throw off the accuracy of their hall effect magnetic sensor. The CR touch uses an optical sensor. Setup took a bit of time finding the right Creality firmware, there are quite a few with nearly the same title. If you chose the wrong one, the display turns red. The firmware works with OctoPrint, so you have additional setup options, but the existing display is good to do the setup. I thought you needed to update the display firmware to get the leveling option, but no, it is enough to just do the one binary file on an SD card for the motherboard SD card slot.