Brass Z Axis Coupler Dual Z T8 Lead Screw Upgrade Oldham Coupling Kit Compensate Rod Wabble Correct Z Banding Issue for Creality Ender 3/5 Pro V2 S1 Neo CR10 S4 S5 3D Printer 8mm Threaded Rod

I recently purchased the Brass Z Axis Coupler Dual Z for my Ender 3 3D printer to address an issue I was having with Z banding. After installing the coupler, I was pleasantly surprised at the improvement in print quality. The coupler helped to eliminate the Z banding issue that I had been experiencing, resulting in much smoother and more consistent prints.The quality of the coupler itself is also impressive - the brass construction feels solid and durable, and the fit and finish is excellent. The installation process was straightforward and the coupler fit perfectly with my printer.I also appreciated the fact that the coupler allows for dual Z-axis synchronization, which further helps to improve print accuracy and consistency.Overall, I am extremely satisfied with my purchase of the Brass Z Axis Coupler Dual Z. It has helped to significantly improve the quality of my prints and eliminate an issue that had been causing frustration for some time. I would highly recommend this product to anyone who is experiencing Z banding issues with their Ender 3 or other 3D printer.

These are almost perfect they fit my ender 3 s1 but the dovetails required slight polishing to slide as they should have from the manufacturer. I have the tooling to fix it so I did. But I shouldn't have had to.

I've purchased a couple sets of these for my Creality printers. My Ender 3 Pro, CR10S and Ender 3 V3 KE are all dual leadscrew designs, the first two being dual driver as well running Klipper. These Oldham couplers have helped with eliminating some backlash since the leadscrew nuts are now completely tightened, and not free-floating on the frame as those printers are setup out of the box. The screw is allowed to wobble in the x and y direction, while being constrained on the Z axis. This has really helped eliminate inconsistent layers on my E3P and CR10S. I did have one set that the machining tolerance was too tight to use, and had to return, but the rest of these have been excellent and have MANY print hours on them. No signs of wear and the machines still print very well!I didn't see any real quality boost on my E3V3KE, and it was a lot of work to fit these to that printer, so I wouldn't use these for a machine like that. However, it did help free up the movement on the Z axis of that machine.

The media could not be loaded. UPDATE 2-19-2023After using these for several days, they began to bind, and cause the Z Axis to bind. I would not recommend this product now. Total waste of money.An excellent solution for a Z Wobble Artifacts in prints caused by a slight bend in the lead screw. It has eliminated the z banding effect that was showing on my 3D Prints. Machining quality is very tight, and of high quality. I was also able to add a fixed top bearing to each lead screw with no binding issues.I worked the parts back and forth to smooth the surfaces for about 15 minutes. Added a drop of sewing machine oil on the mating surfaces. I highly recommended pairing these with backlash nuts.I plan to upgrade all three of my 3D Printers with these. Would recommend this purchase to anyone with binding or z banding issues.

If you've gone this far, you're no stranger to the variety of leadscrew related issues.Installation is fairly easy, make sure you've got grease for these though.Your mileage may vary with this. I have no doubt this is an improvement for most cases, it certainly helped mine. However this is not a cure-all and due to how subtle the change can be makes this sit in an odd limbo where it can look like a placebo level difference for some but has visible notable differences for others.Maybe you've just accepted a print artifact existing at a certain point in your prints, maybe not. I would still err on the side of giving it a shot though.

These were very stiff and the sliding parts were binding against each other. It required significant force for the parts to slide as they should. I ended up spending about an hour working on sanding the sliding surfaces so the the 3 pieces of each one would slide smoothly back and forth against each other. In the end they now work as they should, but I should not have had to do any work at all with them beyond installation.

I was excited to receive these Oldham couplers from Enomaker so I could try to eliminate the z-binding on both z rods of my Ender 3. I installed the first one with no problem at all. The second one though did not go so smoothly. The coupler itself was siezed. I could not slide the pieces at all- they were completely stuck. I ended up forcing them apart by pushing one part against the edge of a table. They came apart and I inspected them, but could not see any visible signs of damage or defect. So I did what any backyard mechanic would do and I proceeded to sand down the part that I thought was causing the binding. After a few minutes of sanding with 100 grit sandpaper I finally got them to slide with each other, although there is now some backlash (sanded too much I guess). I installed the second one and readjusted the x gantry and leveled the bed. Have not tried a test print yet. Why did I not send it back, you ask? Well, it just seems like it would be too much trouble for such a small part. As I prepared to write this review I noticed that Amazon has a note that says this is a frequently returned item. Too bad I did not see that before I purchased it. I may update this review later.

Some others have mentioned the rough finishing. One of mine was nice, the other had some binding issues due to slack machining. You can fix it with a file. I left mine as it was, because it slid smoothly in the needed area, outside of the area was rough but never accessible when in use. These were tr8x2 as listed, which also surprised me as I often get BS that is not as described.