Creality 3D Official Printer Ender 3 Dual Z-axis Upgrade Kit with Lead Screw, Metal Power Supply Holder and Stepper Motor, 3D Printer Ugrades Kit for Ender 3, Ender 3 Pro, Ender 3 V2

Installs well, nothing too complicated. I did notice a marked improvement on overall quality, especially when things get tall. it makes tramming the bed much more consistent, and if you add this to the yellow spring and aluminum adjuster wheel upgrade, you shouldn't to ever tram it again.

Work as expected, everything needed to install it is included

Excelente producto

Overall impression: Let me first say that this upgrade works wonders on larger print beds. I upgraded an Ender 3 with the 400x400mm EnderExtender kit and the sag from the x gantry was pretty significant, despite dialing in the v-slot wheels. I would HIGHLY recommend using this with a mainboard that supports two z-axis stepper motors on INDEPENDENT drivers. Independent control is required to perform automatic z-tilt adjustment in the firmware. The SKR mini e3 v3, for example, supports two z-axis motors, but they run off the same drivers and cannot be controlled independently. The SKR turbo v1.4 does support two z-axis motors with independent drivers. The kit: Comes with all the dual z motion components, as well as a bracket to move the PSU out of the way. It had absolutely no instructions, which is part of the reason I docked it for "Easy to Install". Don't use the included bearing blocks. At best the bearings are loosely fitted and not doing anything for alignment and at worst it is overconstraining the system. Install tips & procedure: 1) make sure your vertical extrusions are parallel to each other and perpendicular to the rest of the frame. A carpenters square really helps here. Don't skip this step; it will be impossible to prevent lead screw binding if the frame is misaligned. 2) Check the tightness of the v-slot wheels on the gantry (3 wheels on each side). They should all be tight enough that they cannot rotate freely without moving the gantry. If they are too loose, there is an eccentric nut on the inner wheels that can be adjusted with a wrench. 3) Install the new plate onto the gantry and reassemble 4) Before tightening the z-axis motor to the vertical extrusion, check that the lead screw is perfectly vertical. Calipers to measure the distance from the lead screw to the frame helps. If it is not vertical when the motor is touching the vertical extrusion, you'll need to print a spacer. Check Printables.com/Thingiverse.com for lots of options. Additional tips/tricks: -You can use the lead screw nut to fine tune the leadscrew until it is perfectly vertical -Use a small amount of grease (like lithium grease/marine grease) on both lead screws to reduce friction/binding

I combined this upgrade with the Sprite Extruder Pro at the same time because i was worried about the extra weight of the new extruder on my plain single Z-axis Ender 3. So because i did 2 upgrades at once, i don't know if this kit had any effect on print quality since the extruder upgrade definitely did improve things. Based on my printing experience you don't need this kit by itself. The original extruder on a stock Ender 3 is going to be the main hardware holding back your print quality. But if you upgrade the extruder, you should probably get this kit too, and definitely get it if the new setup is heavier. I thought installation would be a lot easier than it was. I was expecting an adapter cable to plug into the existing original Z-axis cable as an extension but you actually get an entire new Z-axis cable that plugs into the mainboard. So that means opening up the mainboard area. I had no intention of leaving the original cable in there unattached so i also had to undo the wire bunch to remove the original one and wrap it all back up again. The assembly instructions are extremely minimalistic so i'd recommend watching a video first. I had to take apart the carriage to attach the new rod plate but the worst part was aligning the entire gantry when there's now two separate rods. The rods have to be aligned both to the frame and to each other. Keep in mind that you probably can't move the gantry by hand anymore because i really doubt you can turn both Z-axis rods at exactly the same speed. So now when moving the gantry for any reason you have to power up the motors and do it that way to keep the alignment in sync. It's a bit annoying (but obviously worth it). It took me longer to install the dual Z-axis kit than it did to do the entire extruder upgrade.

Fixed a side to side say the machine had developed. Recommend for anyone with one of these to avoid it eventually happening.

That added z stability really helps on the older ender3

If you have issues with your X-Gantry sagging on one side, or are adding direct drive, this is amazing. Fits perfectly, and increased quality a little bit as well. Also makes it easier to level the bed.

Tenía problemas de nivel cuando solo tenía 1 eje y constantemente se caían los soportes, eso acabó con un doble eje z, si comprás la ender 3 DEBES comprar esta actualización.

The kit doesn't work for the Ender 3 Max, as the lead screw is too short, however the mounts and accessories fit. Had to buy a separate lead screw that was longer, but once I did that, it fit beautifully. Was easy to assemble, despite there being NO instructions in the box whatsoever. Thankfully I found a video to confirm my steps, but bags were not numbered, and mostly labeled in Chinese. Just make sure when installing you watch a YouTube video to confirm your steps, and when dealing with the concentric nut, make sure it goes back in the right way or your pom wheel won't work.

Installed on ender 3 max with 500mm z rods

Se lo instale a una Ender 3 v2 y ahora imprime con mejor calidad aunque tuve que ajustar el z offset.

I recently purchased this upgrade, and I must say that the quality is overall solid. However, I did notice that the instruction guide was a bit blurry and challenging to read; I have no idea if it is just for me. Despite this minor issue, I found this upgrade very useful and practical. I would recommend it to others who need a dual Z-rod upgrade.