Aluminum Extruder Hand Twist Nut Diameter 37mm for 3D Printer CR-10/Ender-3

Great addition to my machine, The plastic ones just wear out. This aluminum design is very sleek and attractive for my machine.

I printed another knob out, but knew that it would fail eventually too.This knob fits and works great.My only complaint is that is very low profile and I'm often skinning my knuckles twisting it on the printer. Maybe I just have larger fingers?

I ordered these to replace the printed ones I have been using because they eventually stop working. Unfortunately, they are super low profile and not very wide, so this makes them difficult to use for their intended purpose. They are a solid hunk of metal, so they will last, but I had to design a 3d printed adaptor to make them more user friendly. Something to keep in mind before purchasing.

Perfect fit it looks small but it fits and it stays on when u tighten it

I bought this for my biqu printer it is awesome it pulls filament in and also backs off a bit so you don't get a glob of filament. It also nice you can just turn a dial to load your printer

Used on an E3V2. After I swapped to direct drive the stock adjuster wouldn’t fit. This is much smaller than the stock adjuster for the extruder and fits perfect

Slightly smaller than expected (smaller than my OEM Ender 3v2 for example) but good quality metal construction with 2 grub screws to ensure tight fit.This doesn’t fit well if you have direct drive. But that’s not really anything to do with construction of this item, just a note for information.

The price is a bit high for such a small product. The main wheel is much bigger. Good part is it as allen screws to tighten the wheel. Are cheaper on here but this come quick.