--- product_id: 57797053 title: "Bondtech Mini Wanhao i3 Upgrade Kit" brand: "bmg" price: "€ 6.19" currency: EUR in_stock: false reviews_count: 2 url: https://www.desertcart.be/products/57797053-bondtech-mini-wanhao-i3-upgrade-kit store_origin: BE region: Belgium --- # 1-hour install 50% torque boost hardened steel gears Bondtech Mini Wanhao i3 Upgrade Kit **Brand:** bmg **Price:** € 6.19 **Availability:** ❌ Out of Stock ## Summary > ⚡ Upgrade your Wanhao i3 for faster, sharper, and tougher prints! ## Quick Answers - **What is this?** Bondtech Mini Wanhao i3 Upgrade Kit by bmg - **How much does it cost?** € 6.19 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/57797053-bondtech-mini-wanhao-i3-upgrade-kit) ## Best For - bmg enthusiasts ## Why This Product - Trusted bmg brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Hardened steel drive gears and needle bearings resist wear from abrasive filaments. - • **Plug & Play Upgrade:** Uses your original stepper motor with a simple 1-hour install and step-by-step guide. - • **Dual-Drive Precision Grip:** Filament gripped from both sides for zero slippage and flawless extrusion. - • **Effortless Filament Changes:** Quick-release lever and spring-loaded tension make swapping filaments a breeze. - • **50% More Torque & Resolution:** Smaller drive gear diameter boosts torque and print resolution by half. ## Overview The Bondtech Mini Wanhao i3 Upgrade Kit transforms your 3D printer with dual-drive hardened steel gears, increasing torque and resolution by 50%. Designed for durability and precision, it handles abrasive filaments effortlessly and installs in just one hour using your existing stepper motor. Perfect for pros demanding faster, higher-quality prints with minimal hassle. ## Description Bondtech Mini with Dual-Drive gears that grips the filament from both sides without any slippage or grinding as an upgrade kit for the Wanhao I3 printer.The smaller effective diameter of the drivegear will increase the torque by about 50% and also the resolution will increase with 50% since the E-step value is 140 compared with the 96 as the standard extruder.The filament path is fully guided and this makes the extruder work perfect with both hard and soft filaments, the drive gear is also in hardened steel to withstand wear from especially filaments with abrasive additives like carbonfiber and glassfiber.The quick-release lever lets you load and unload filament with ease for quick filament changes.Spring loaded pre-tension on the filament.This kit uses the original steppermotor that came with the printer and is installed in 1h. Step-by-step guide is supplied.The kit consists of the following:Extruder parts in nylon with thread inserts.Hardened drivegears in steel.Needlebearings.Harded ground shaft.Bolts M3x45 mmShim in alu.For simple installation we have now produced a custom mounting bracket as you can find below in recommended parts.The original metal plate that holds the extruder needs to be modified in order to give room for the extruder, this is easily done with a hacksaw and a file.Maximum X-movement is restricted about 15 mm on the right side.E-step needs to be adjusted to 140 step/mm (with the LCD panel)Weight: 62gNote! The version 2.1 of the WanhaoI3 have a different part cooling fan housing that will make the housing to be lower than the nozzle, a custom printed part cooling fan housing could be used instead. Review: Faster printing, higher quality, more reliable. - I’ve had very good luck with this extruder. It has increased my print speed, quality, and reliability on my Wanhao Duplicator i3 Plus. Note: this extruder seems much more efficient than the stock extruder and you should tune the extrusion multiplier first thing. There are good guides on how to do this, a micrometer is required. I ended up changing my extrusion multiplier from .94 (default) to .65 and I am now having beautiful prints. Also, on the i3, you will lose X build volume because the bondtech is much wider than the OEN extruder and the motor will hit the frame. This can be remediated by getting a new smaller motor. Search for “slimline” stepper motor. I was able to gain Z height because the bondtech puts the filament going into the extruder in front of the top frame instead of behind it. No more large print jobs failing due to extruder issues! Review: This Extruder is as good as they say - This Extruder is as good as they say. Instructions need some work for us newbies. Mainly the part about changing the E Steps. FAQ has a newbie friendly way to change it using an sd card. ## Features - Extruder parts in nylon with thread inserts. - Hardened drivegears in steel. - Needlebearings - Harded ground shaft. - Bolts M3x45 mm ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B074P8GZJF | | Date First Available | August 9, 2017 | | Item Weight | 1 pounds | | Manufacturer | Bondtech | ## Images ![Bondtech Mini Wanhao i3 Upgrade Kit - Image 1](https://m.media-amazon.com/images/I/61DoxzsCK0L.jpg) ![Bondtech Mini Wanhao i3 Upgrade Kit - Image 2](https://m.media-amazon.com/images/I/51HBjh7De9L.jpg) ![Bondtech Mini Wanhao i3 Upgrade Kit - Image 3](https://m.media-amazon.com/images/I/516EAAcgsZL.jpg) ![Bondtech Mini Wanhao i3 Upgrade Kit - Image 4](https://m.media-amazon.com/images/I/610AI3EsmyL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Faster printing, higher quality, more reliable. *by E***R on March 10, 2020* I’ve had very good luck with this extruder. It has increased my print speed, quality, and reliability on my Wanhao Duplicator i3 Plus. Note: this extruder seems much more efficient than the stock extruder and you should tune the extrusion multiplier first thing. There are good guides on how to do this, a micrometer is required. I ended up changing my extrusion multiplier from .94 (default) to .65 and I am now having beautiful prints. Also, on the i3, you will lose X build volume because the bondtech is much wider than the OEN extruder and the motor will hit the frame. This can be remediated by getting a new smaller motor. Search for “slimline” stepper motor. I was able to gain Z height because the bondtech puts the filament going into the extruder in front of the top frame instead of behind it. No more large print jobs failing due to extruder issues! ### ⭐⭐⭐⭐⭐ This Extruder is as good as they say *by A***R on December 24, 2017* This Extruder is as good as they say. Instructions need some work for us newbies. Mainly the part about changing the E Steps. FAQ has a newbie friendly way to change it using an sd card. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.be/products/57797053-bondtech-mini-wanhao-i3-upgrade-kit](https://www.desertcart.be/products/57797053-bondtech-mini-wanhao-i3-upgrade-kit) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-05-25*