YOOPAI Metal Leveling Nuts and Springs Nozzles Heatbed Silicone Leveling Column Mounts Hand Twist Upgraded Set for Ender 3/3 V2/Ender 3 Neo/Ender 3 S1 Pro/Ender 5 Plus/CR 10 Series 3D Printer (4Pcs)

I am currently (always, LOL) in the process of rebuilding one of my Ender 3s, so I figured this kit might be a good place to get a few extra pieces. For the price, it seems to be a pretty good deal. The leveling wheels are very solidly constructed, all metal, and are much nicer than the originals that the printer came with. They also have a nice texture on the edges to make them easy to grip and turn (though it would be even nicer if they also had up/down labeling on them). The upgraded springs that come with this kit also appear to be well made and a bit stiffer than the original Ender 3 spring (which is a good thing). Personally, I will probably be using the 4 included silicone spacers rather than the springs, as I find they tend to do better at damping Y-axis vibrations/oscillations than the springs do and yield better print quality with less salmon skinning in Y. The silicone spacers seem well made and one of them is shorter than the others, as it should be, to allow room for the heat beds plastic strain relief. The 4 included nozzles seem fine but unremarkable, but it never hurts to have a few extra nozzles! My only other observation would be with regards to these springs being slightly longer than the originals and their recommendation that you may need to trim them. Rather than trying to trim them, at least for an Ender, it is MUCH easier to just readjust your Z end-stop switch up by a few millimeters. Overall, this is a nice little upgrade kit.

I recently picked up a used (Amazon Return) Ender-3 and have been upgrading it. The stock bed springs leave something to be desired. The spring rate is very low and I noticed the bed had a lot of wobble and movement while printing. This kit comes with stronger springs and silicone mounts. I decided to try the more solid silicone mounts first, and they work great. I have not tried the springs from this kit as the silicone mounts worked so well, but I do have concerns with my particular printer. When levelling my bed I noticed that it sits very low to the mounting plate, which means that the springs would be compressed a lot. Looking at the springs, its possible they would not work on my unit. Its possible the coils would bind before I could get the bed leveled. The metal bed leveling knobs included in this kit are a nice upgrade. The stock ones were hard to turn because they were so small that the bed got in the way. That being said, these knobs could also be 10-15% larger. The back knobs are still very hard to get at. They also do not have the labeling on them to tell you which way to turn them to raise/lower the bed. Once you realize the screw is upside-down, so lefty-losey (Raise Bed) righty-tighty (Lower Bed), it is easy to remember but would still be nice to have the labelling. The hotend that is on my printer is not the stock one. The person that owned it before me upgraded it. This means the included nozzles are not the same type as my printer uses. However, they will work in my Anycubic Mega X. They are going in its extra nozzles bin. For the price, this is a pretty good kit. A stock Ender can use all the parts and the choice between the spring mounted or silicone mounted bed is nice.

This is a good kit with the MK8 nozzles and silicone spacers that most bed slingers can benefit from. The red wheels are just a bonus and in my opinion dont improve anything but looks. But this kit is the same price as a pack of the silicone spacers I got a couple of years ago for my first printer so great value overall.

I highly recommend these upgrades. The silicone spacers are a must if you have ABL. If not then use the heavy springs! Best upgrade kit for any printer!

I just have to say, wow, what a noticeable difference getting rid of the springs on my ender! Comes with stiffer springs and silicone spring replacements. Easy to install and comparable in price to many other options.

Used the rubber stands instead of the springs because i was tired of constantly having to adjust the springs which would always lose tension or have to be adjusted. The bundle itself is more then worth the price, including extra nozzles, springs, upgraded knobs and the rubber stands!

Got these for the silicone spacers to make life easier when leveling our Ender 3 Max Neo, and they work great! they make the bed super solid and were painless to swap out. I like the metal wheels included because they have nice grip and are lighter than the stock plastic wheel. Only by a couple grams, but hey, every bit counts. Going to get more of these as we expand our Ender selection

The product appears to offer good value for its price. The leveling wheels are robustly constructed, entirely made of metal and have a superior texture on the edges that makes them easy to hold and turn. It would have been even better if they were labeled for up and down. The upgraded springs that come with the kit seem to be of good quality and slightly stiffer than the original Ender 3 spring, which is good. Nonetheless, the 4 included silicone spacers may work better to dampen vibrations more effectively, yielding superior print quality with less salmon skinning in Y. The silicone spacers are well-made, with one of them being shorter to allow room for the heat beds plastic strain relief. The 4 included nozzles are satisfactory but unremarkable, although it is always useful to have extra nozzles.

I’ve got 5 printers and have ordered kits like this for at least 3 now. The spacers are so nice. Worth every penny

Using on an Ender 3 Neo. Swapped out the old plastic bed adjustment knobs for these aluminum ones. Silicone spacers hold the bed level longer than springs in my experience. Good value for the price!