---
product_id: 504004079
title: "Redrex Dual Gear Ender 3 Extruder with Two Washers Metal Drive Feeder Upgrade Kit Compatible with Creality Ender 3 V2 Pro,Ender 3 Neo Series,CR10 3D Printer TPU Filament Supported(Motor Shaft>20mm)"
brand: "redrex"
price: "$U2399"
currency: UYU
in_stock: true
reviews_count: 5
category: "Redrex"
url: https://www.desertcart.uy/products/504004079-redrex-dual-gear-ender-3-extruder-with-two-washers-metal
store_origin: UY
region: Uruguay
---

# Adjustable spring tension for precision Dual gear extrusion for firm grip Double washers prevent gear damage Redrex Dual Gear Ender 3 Extruder with Two Washers Metal Drive Feeder Upgrade Kit Compatible with Creality Ender 3 V2 Pro,Ender 3 Neo Series,CR10 3D Printer TPU Filament Supported(Motor Shaft>20mm)

**Brand:** redrex
**Price:** $U2399
**Availability:** ✅ In Stock

## Summary

> ⚙️ Upgrade your 3D printing game with precision and power – don’t get left behind!

## Quick Answers

- **What is this?** Redrex Dual Gear Ender 3 Extruder with Two Washers Metal Drive Feeder Upgrade Kit Compatible with Creality Ender 3 V2 Pro,Ender 3 Neo Series,CR10 3D Printer TPU Filament Supported(Motor Shaft>20mm) by redrex
- **How much does it cost?** $U2399 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/504004079-redrex-dual-gear-ender-3-extruder-with-two-washers-metal)

## Best For

- redrex enthusiasts

## Why This Product

- Trusted redrex brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision Tuning:** Spring tension adjustable via screw ensures consistent extrusion and superior print accuracy.
- • **Broad Compatibility:** Seamlessly fits Ender 3 V2, Pro, Neo series, CR10, and more—perfect for motor shafts >20mm.
- • **Durability Meets Design:** Upgraded idler gear with dual washers protects your extruder arm from wear and tear.
- • **Unmatched Filament Control:** Dual gear mechanism grips filament firmly, eliminating slips and jams for flawless prints.
- • **Ready for Flexible Filaments:** Supports TPU, PLA, ABS, and other 1.75mm filaments, empowering your creative freedom.

## Overview

The Redrex Dual Gear Ender 3 Extruder is a robust aluminum alloy upgrade designed for Creality Ender 3 V2, Pro, Neo series, CR10, and compatible 3D printers with motor shafts over 20mm. Featuring a dual gear extrusion system with double washers, it ensures firm filament grip and protects against gear wear. Its adjustable spring tension enhances print accuracy and supports a wide range of 1.75mm filaments including flexible TPU. This upgrade significantly reduces filament slipping and jamming, making it a must-have for serious 3D printing enthusiasts seeking reliability and precision.

## Description

What are the advantages of Redrex Dual Gear Extruder? 1.The dual gears grip filament firmly to fix a problem with filament slipping. 2.To address the gear eating into the arm, Redrex Dual Gear Extruder comes with two washers between the gear and the arm. 3.This aluminium alloy extruder works great with 1.75mm filament,such as TPU/PLA/ABS/Wood/Hips/Flexible/PTEG ect. 4.The upgraded version of the spring is stronger, durable and not easily deformed. Application: Ender 3 V2 Ender 3 Pro Ender 3Ender 3 NeoEnder 3 V2 NeoEnder 3 Max NeoEnder 5 Pro Ender 5 Plus CR10 S CR10 V2 CR10 Max CR-3040 Pro CR5 Pro CR5 S Vyper Voxelab Aquila Artillery Hornet Specification: Material:Aluminum Alloy Item Type:Right Hand Version Support: 1.75mm Filament E-step: 139 Packing List: 1×Dual Gear Extruder

Review: tan pronto como recibas tu impresora, es una buena idea cambiar el extrusor original por este modelo, te ahorras dolores de cabeza
Review: Bought this extruder for my 2020 model CR-10 after I had inconsistent extrusion and skipping on my prints from my aluminum single gear extruder and tried everything else I could think of to fix it. A few things off the top of my head: -As other reviews have pointed out, this version of the low-cost dual gear design includes washers to prevent the gears from grinding off the aluminum as they turn--this is the only one I've seen on desertcart that acknowledges that design flaw! -An issue that I HAVEN'T seen in reviews (probably because it's such an obscure upgrade) is that, while it IS compatible with the CR-10, it's not perfectly compatible with the PrinterMods direct drive upgrade right out of the box. This extruder is substantially thicker than the stock Creality one the PrinterMods upgrade is designed for, so the M3x25 screws included with that upgrade are /just/ too short to mount the motor + extruder to the printhead, and the screws you get with this package DEFINITELY aren't long enough to do the job. I'll update this review later to see how it works in action, but PrinterMods users--you WILL need to replace the two M3x25 screws you used to mount the motor to the printhead with M3x35, and I recommend adding a matching nut to ensure you can screw it all the way in. (It's overkill, but I ordered the iexcell M3 screw variety pack with the 50 nuts and five different lengths of screws--it's only ~$9 on desertcart though, so unless you found a cheaper M3x35 nut and bolt pack, that's what I can personally recommend.) -Definitely recalibrate your e-steps after you install this--in my case the included suggestion of 139 steps/mm was spot on, but it doesn't hurt to use this as a starting point for your calibration, since either way you're going to need to bump up your e-steps from stock for this kind of extruder. -If you're confused on how to install this, check out CHEP's video specifically about installing them. The included instructions are pretty vague if you haven't done extruder upgrades before, but I think that video is super easy to follow for beginners. Like I said, so far so good--after calibrating e-steps this extruder consistently extrudes the amount of filament you tell it to, has a firm grip on the filament without grinding it down or biting into it too deeply (at least with PLA--I'll see about PETG and other filaments one of these days), and shows no sign of slippage. Again, since I need to get longer screws to mount it on my particular setup, I'll update this review later to see how it works extruding hot filament proper, but if you need a solid dual gear extruder and don't want to break the bank, get THIS one! UPDATE 9/14/22: So I managed to finally get this thing mounted and tested extruding hot filament and it works beautifully! I won't knock off a star for this, but I WILL note that, for my extruder, I had to chamfer the second hole that fed the filament through the PTFE tubing a bunch since the gears didn't perfectly line up with that hole, making it so not only did I have difficulty feeding filament through, but it shaved off the filament as the extruder worked. This extruder is solid in every other aspect but this one, and while I would still certainly recommend it over other dual gear models on desertcart, I would advise having a needle file on hand just in case your hole(s) are misaligned/undersized. You get what you pay for, as they say. UPDATE: 9/23/22: After some fairly light but solid use, I can safely say that this is very likely your best budget dual gear option on desertcart right now. My only gripe that still remains is that it's finicky to actually get the filament through the gears AND to the hotend, but I imagine that's just because of my own weird setup, and I've heard that people have issues feeding filament through their stock/single-extruder setups anyways. If you're like me and you're patient (and desperate) enough to stick with it once you buy it, I still recommend getting a needle file just in case you need to widen the feed hole--after adding extra clearance it works just fine and no longer shaves away the filament.

## Features

- 【Double Gear Extrusion Mechanism】:The filament is gripped by the dual drive much more firmly with less deformation, so it doesn't jam as much in the tube, nozzle or hotend.
- 【Upgraded Idler Gear Design】This idler gear is upgraded with two washers on both sides, so the sharp gear will NOT ride against the bottom of the arm or chew it up.
- 【Spring Adjustable Extruder】The extrusion spring tension could be adjusted by tighten the screw,which greatly improves the printing accuracy and feeding issue.
- 【Application】:This all metal dual drive extruder is compatible with Ender 3 V2,Ender 3 Pro,Ender 3,Ender 3 Neo,Ender 3 V2 Neo,Ender 3 Max Neo,Ender 5 Pro,CR10 S series 3D printer.ONLY suit for 3d printers with motor shaft over 20mm,please measure the shaft length before placing the order.
- 【Kindly Reminder】:Please calibrate the E-steps from 100 to 139; Please lubricate the gears before first use;for 3d printers with filament detector,as the height of our dual gear extruder may be different from the original one, please print the model to rise up the filament detector to make them at the same height;for Vyper users,please swap the motor wire sequence to make it turn forward instead of reverse

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09H6T3NNT |
| ASIN  | B09H6T3NNT |
| Batteries Included? | No |
| Batteries Required? | No |
| Customer Reviews | 4.3 4.3 out of 5 stars (1,772) |
| Customer reviews | 4.3 4.3 out of 5 stars (1,772) |
| Date First Available | 27 September 2021 |
| Date First Available  | 27 September 2021 |
| Item Package Quantity | 1 |
| Item Weight | 59 g |
| Item model number | RDX3D032 |
| Item model number  | RDX3D032 |
| Manufacturer | Redrex |
| Manufacturer  | Redrex |
| Part number | RDX3D032 |
| Product Dimensions | 2.5 x 5.6 x 5 cm; 59 g |
| Product Dimensions  | 2.5 x 5.6 x 5 cm; 59 g |

## Images

![Redrex Dual Gear Ender 3 Extruder with Two Washers Metal Drive Feeder Upgrade Kit Compatible with Creality Ender 3 V2 Pro,Ender 3 Neo Series,CR10 3D Printer TPU Filament Supported(Motor Shaft>20mm) - Image 1](https://m.media-amazon.com/images/I/71RMLvMrl7L.jpg)

## Questions & Answers

**Q: I have a cr10s, do i need right hand or left hand??**
A: All the ender 3 and cr10 series need the right version!!

**Q: Will this work with anet a8 plus? and what version would i need to buy?**
A: You're having trouble with YOUR extruder, too, aren't you? We all are. They're terrible.

This will work with your printer if you're fed up with their direct drive and you're converting it to use a Bowden tube. Be aware that Bowden tube extruders come with their  own unique struggles, but they're not as nasty as the A8 Plus's direct drive extruders.

Since you're doing this conversion, you'll also need some sort of 24V Bowden-style hotend.

It mattereth not a whit whether you go with the left-hand or right-hand version for your printer; you'll mount it wherever you figure it'll be convenient. If I were you, I'd mount it somewhere left of center, but your circumstances may be different from mine.

While you're at it, you might as well upgrade your linear bearings to polymer, too, and your control board to one of the many alternatives. Whatever you do, don't screw around; replace that power cable NOW before you burn your printer to a crisp! The one that runs from the power supply to the control board. It isn't big enough for that load, and the crimped terminals sometimes catch fire. Replace it with no less than #16 AWG wire.

**Q: Will this fit a Monoprice Mini v2?**
A: It's designed for the Creality CR-10, but it's a fairly safe bet that it would fit any bowden printer that uses the same size motor for the extruder, and the same size filament (The creality uses a 42-40 stepper motor, but many other stepper motors have the same spacing between screw holes).  Depending on the bracket the motor is attached to, it's possible the screws that come with this part might not be long enough, but replacement screws shouldn't be hard to find.

**Q: Is this all i need to upgrade an ender 3 to have a metal hotend for printing petg?**
A: You don't need an all-metal hotend for petg usually. The one on the ender-3 will work just fine. The limit of a ptfe tube is around 240-250. Petg prints with a hotend at 230-250 usually, just make sure the filament you buy isn't one of the odd ones that might need higher temps. If you're worried replace the ptfe on your ender-3 with high grade stuff like capricorn and look for lower temp petg filaments.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by R***T on 26 April 2023*

tan pronto como recibas tu impresora, es una buena idea cambiar el extrusor original por este modelo, te ahorras dolores de cabeza

### ⭐⭐⭐⭐⭐ Review
*by A***S on 10 September 2022*

Bought this extruder for my 2020 model CR-10 after I had inconsistent extrusion and skipping on my prints from my aluminum single gear extruder and tried everything else I could think of to fix it. A few things off the top of my head: -As other reviews have pointed out, this version of the low-cost dual gear design includes washers to prevent the gears from grinding off the aluminum as they turn--this is the only one I've seen on Amazon that acknowledges that design flaw! -An issue that I HAVEN'T seen in reviews (probably because it's such an obscure upgrade) is that, while it IS compatible with the CR-10, it's not perfectly compatible with the PrinterMods direct drive upgrade right out of the box. This extruder is substantially thicker than the stock Creality one the PrinterMods upgrade is designed for, so the M3x25 screws included with that upgrade are /just/ too short to mount the motor + extruder to the printhead, and the screws you get with this package DEFINITELY aren't long enough to do the job. I'll update this review later to see how it works in action, but PrinterMods users--you WILL need to replace the two M3x25 screws you used to mount the motor to the printhead with M3x35, and I recommend adding a matching nut to ensure you can screw it all the way in. (It's overkill, but I ordered the iexcell M3 screw variety pack with the 50 nuts and five different lengths of screws--it's only ~$9 on Amazon though, so unless you found a cheaper M3x35 nut and bolt pack, that's what I can personally recommend.) -Definitely recalibrate your e-steps after you install this--in my case the included suggestion of 139 steps/mm was spot on, but it doesn't hurt to use this as a starting point for your calibration, since either way you're going to need to bump up your e-steps from stock for this kind of extruder. -If you're confused on how to install this, check out CHEP's video specifically about installing them. The included instructions are pretty vague if you haven't done extruder upgrades before, but I think that video is super easy to follow for beginners. Like I said, so far so good--after calibrating e-steps this extruder consistently extrudes the amount of filament you tell it to, has a firm grip on the filament without grinding it down or biting into it too deeply (at least with PLA--I'll see about PETG and other filaments one of these days), and shows no sign of slippage. Again, since I need to get longer screws to mount it on my particular setup, I'll update this review later to see how it works extruding hot filament proper, but if you need a solid dual gear extruder and don't want to break the bank, get THIS one! UPDATE 9/14/22: So I managed to finally get this thing mounted and tested extruding hot filament and it works beautifully! I won't knock off a star for this, but I WILL note that, for my extruder, I had to chamfer the second hole that fed the filament through the PTFE tubing a bunch since the gears didn't perfectly line up with that hole, making it so not only did I have difficulty feeding filament through, but it shaved off the filament as the extruder worked. This extruder is solid in every other aspect but this one, and while I would still certainly recommend it over other dual gear models on Amazon, I would advise having a needle file on hand just in case your hole(s) are misaligned/undersized. You get what you pay for, as they say. UPDATE: 9/23/22: After some fairly light but solid use, I can safely say that this is very likely your best budget dual gear option on Amazon right now. My only gripe that still remains is that it's finicky to actually get the filament through the gears AND to the hotend, but I imagine that's just because of my own weird setup, and I've heard that people have issues feeding filament through their stock/single-extruder setups anyways. If you're like me and you're patient (and desperate) enough to stick with it once you buy it, I still recommend getting a needle file just in case you need to widen the feed hole--after adding extra clearance it works just fine and no longer shaves away the filament.

### ⭐⭐⭐⭐⭐ Review
*by A***. on 28 December 2024*

Great extruder, using two gears instead of a bearing, the alu housing also is a big stepup from the original plastic and now the filament hole is also easier to find and put new filament in.

## Frequently Bought Together

- Redrex Dual Gear Ender 3 Extruder with Two Washers Metal Drive Feeder Upgrade Kit Compatible with Creality Ender 3 V2 Pro,Ender 3 Neo Series,CR10 3D Printer TPU Filament Supported(Motor Shaft>20mm)
- UniTak3D Ender 3 Direct Drive Upgrade Conversion Bracket for Ender 3 V2,Ender 3 Pro and Voxelab Aquila 3D Printer for B-MG&Dual Gear&Bowden Extruder(NOT for Neo Series,Extruder&Hotend NOT Include)
- Official Creality Ender 3 Dual Z-axis Upgrade Kit with Lead Screw, Stepper Motor and Metal Power Supply Holder, Ender 3 pro upgrades for Ender 3/ Ender 3 Pro/Ender 3 V2

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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-02-27*