CrealityCR Touch Auto Leveling Kit, 3D Printer Bed Auto Leveling Sensor Kit for Ender 3/ Ender 3 Pro/Ender 3 V2/ Ender 3 Max/Ender 5/Ender 5 Pro and CR 10 with 32 Bit V4.2.2/V4.2.7 Mainboard

Came quick and I have enjoyed it every print since installing. Installation was easy and the company has some pretty good documentation and videos to help you through the process. The build quality seems solid and after the correct firmware flash it was up and running like it was always there. The multi-point mesh bed leveling is great and has solved a lot of my layer issues in my prints.I wish I bought this sooner. Do recommend and would buy over and over if I needed to.

Great product came with everything you needed Hardware wise software wise you definitely need Reddit because the firmware from the site where they navigate you to works but it causes your machine to fail heating up and if you do a search on failure to heat up after this installation it's a very common issue and if you click on Reddit after searching that problem on Google it will bring you to the proper firmware at least for the Ender 3 Pro

So I've been printing with my Ender 3 for 6 months or so, and I've gotten decent at leveling the bed and dialing in the nozzle distance, but even still, my prints were coming out somewhat uneven or flawed more often than I'd like. I was getting frustrated with having to relevel the bed every single time and then finding that tiny variations in in the springs, temperature, etc. were messing up my prints, so I decided to invest in this auto-leveler.As others have noted, the installation process is a little involved. No step is particularly hard, but differences between different machine models and the somewhat vague instructions provided make it harder than it needs to be. There's some very good video tutorials available on Youtube that I'd recommend you use. After getting it attached to the machine, it took a few bed leveling test prints before I got the z-offset for the probe dialed in.Once dialed in though... I witnessed the best first layer I've ever printed. Picture shows one corner of the bed leveling test; a single layer (.2 height) square, with a perfectly uniform surface and thickness, and sturdy like a piece of cardstock. Beautiful! You might have to adjust the offset by a few points each time you print, but this is much easier than leveling manually. Even if you're a pro at bed leveling, I can't imagine the newfound ease provided by this tech wouldn't make you ecstatic. Buy it! I'm looking forward to printing new things more than ever.EDIT: My unit suddenly had a failure after about four months, where it would just fail to auto home or level. Contacted Creality and they quickly sent me a new unit for free. I just swapped out the probe and it was back to working perfectly! Great hassle-free customer service!

I had previously upgraded my Creality Ender 3 Pro to the 4.2.7 control board so I already knew how to open up the control bottom plate. As a result of that experience and by watching several on-line videos about the CR Touch installation I found the physical installation of the CR Touch to be quite easy.Trouble begins soon after. I downloaded the correct firmware for the BLTouch (yes even though it's a CR Touch) and it loaded right up on the printer but I noticed Chinese characters on the bottom of the Info screen and fully Chinese on every other screen. This is a 2 year old printer so I have the original small display not the touch screen display. You have to press the button from the Info screen and scroll down to the next to last line and press to reveal the other language choices.After that, the screens don't agree with the small instruction booklet that came with the kit or it's bigger on-line version. So it takes some effort to find the various items that you'll need to access in order to calibrate the CR Touch.After alignment my initial impression of the performance is excellent. Remember to add the G29 command to your slicer and the printer will do a bed leveling prior to every print. It seems to work very well based on my 2 day experience.Sadly, the firmware regularly crashes. You know it crashed because you'll see some Chinese characters on the display. After a crash it forgets the language and it forgets the Z Offset that you entered. You will have to redo these two items.On-line research led me to the Marlin Firmware site where you can download their version of the firmware. You have to register on the site. They request a donation but I understand that you can enter zero. There are some minor differences between this firmware and the Creality firmware but I've been using it for another whole day and it has not crashed.When you use this new firmware or probably the Creality firmware as well, you must try the load filament feature. Sit down and enjoy.

Update: Contacted Creality Support, submitted information about what happened with a video of the issue, they are sending a replacement. My other one is working fine. So I'm sure it was just the luck of the draw. It is a little different leveling, and I still recommend a manual level, and switching out the springs for spacers.I have two of these on two different printers, one failed functioning at probably 25 days, but I did not identify it until I replaced the motherboard about 5 days later thinking there was a problem with that. A little bummed. It is a process to refresh the firmware on your printer. I think I had a faulty original 4.2.2 motherboard too which may have lead to the failure. Either way, not a bad price, but as for reducing leveling workload I think there is not a time savings just a different way of leveling, and I still don't trust 100%, as I like to level manually once in a while and use spacers instead of springs for a more stiff and level bed that is less likely to shift.