4 Pack CR10 Z Axis T8 Anti Backlash Spring Loaded Nut Elimination Gap Brass Nuts Acme Threaded Rod Upgrade Kit for Ender 3s 3 Pro 3D Printer

The media could not be loaded. Thanks to this, my issues with the first couple of layers (elephant foot, imprecise z-moves and dimensions etc.) are all gone! I should have discovered these earlier... I used a digital dial to measure the before and after, and after installing these the z-axis is moving very close to 1 mm (0.98-1.00 mm range) when I request it to move 1 mm, especially right after changing direction... I'm super happy and again I should have discovered these earlier. Oh, yes, the material quality is good, no problem over there.EDIT: Apparently mounting them "upside down" is better as the spring cannot carry the weight of the X-gantry and cannot properly push the upper nut up so that it guarantees the threads are in contact, mounting them "upside down" now the gravity pulls the lower nut down with the X-gantry and the spring can easily push the now upper nut "up", guaranteeing the nuts are touching to the threads all the time. And these still have some play, I'll try using Pom Nuts next...

I had Z wobble issues with one of my printers and just couldn't sort it. I used to think these were just a gimmick but they actually cured my problems, Fantastic

Worked perfectly on my cr10s pro v2

I bought this for my Voxelab Aquila, which has a tendency for the Z axis 'gantry' to drop when the stepper motor switches off. It was easy enough to install (instructions available on youtube) but it didn't eradicate the 'backlash'. It improved it somewhat, enough for me to keep the product, rather than reinstalling the stock nut, but not enough for a 4 or 5 star review.There were 2 of these in the pack - I only needed one for the printer. Not sure I would buy it again, knowing what I know now.

Used on my Ender 3. Does the job! Prevents backlash on printer up/down movement.

Overall this product came as advertised. I was having issues finding anti-backlash screw that fit my CR-10S Pro V2 without having to modify the one that goes under the bowden tube setup. I used my digital caliper to measure the hole spacing matched this product and it went on like a glove. Fingers crossed it helps solve my leveling issue.

I made a few upgrades at once so I'm not sure what specifically helped fix my layer issues but everything looks good now.

Für den oben genannten Drucker passen die Lochabstände leider nicht,ich musste am Drucker die Löcher jeweils 0.8mm weiter nach außen feilen.Jetzt funktioniert alles prima, die Muttern sind ordentlich verarbeitet,die Nacharbeit liegt nicht in der Verantwortung des Händlers.Aber Händler sollte die Lochabstände in die Beschreibung aufnehmen.

Acquistati per eliminare il problema dell'asse Z che scende un pochino quando si disabilitano i motori e per evitare errori di posizionamento quando si eseguono movimenti in un verso, e in seguito nel verso opposto, con quelli originali non riuscivo a livellare correttamente il piano, in quanto quando l'asse Z andava su, e poi tornava giù, il posizionamento non era più lo stesso rispetto alla posizione di home, con questi finalmente riesco a livellarlo correttamente.