For you to have a good usage result, This kind driver gear is 14mm high,it requests the extrusion motor shaft with at lease 24mm higher and D shape motor shaft, D shape motor shaft makes the gear has better grip and fixed better.

（Please NOTES：this extruder is not compatible with Ender 3 PRO 3D printer,because the extruder motor of some ender 3 pro printers is with a short motor shaft,not enough long to install the drive gear in this kit.）

This is an upgraded version of CR10 extruder.（Please NOTES：this extruder is not compatible with Ender 3 PRO 3D printer,because the extruder motor of some ender 3 pro printers is with a short motor shaft,not enough long to install the drive gear in this kit.）

A newly added extrusion wheel makes the filament feed more stable. The design of the double-concave gear also reduces the embossing of the consumables by the extrusion wheel.

The mould steel spring is very rigid, strong in pressure and very durable.

ITEM FEATURE:

Left-handed and Right-handed for you to choose.
For most Ender/CR Series 3D Printers please choose the right-handed extruder.

Main Material Instruction

Material for extruder: Aluminum Alloy .
Material for the gear in extruder kit : Stainless Steel or Hardened gear (optional)
Material for the hardened steel gear : 45#Carbon Steel nickel plated .

For filament: 1.75mm

Stainless steel and Hardened Steel driver gears

There are two versions of stainless steel driver gears in the extruder kit: ordinary gear OR high quality gear.

There is one version of Hardened Steel driver gears .

Please choose it in order.

Please carefully notes these before order. Thank you

Please carefully notes before order

The set "Right -ordinary gear"  Right  Hand Version with the ordinary stainless steel gears(include 1pcs with the m3 hole and 1pcs without hole drive gears).

The set "Right -Stainless Gear"  Right  Hand Version with the quality stainless steel gears(include 1pcs with the m3 hole and 1pcs without hole drive gear in kit).

The set "Right-4 Stainless Gear" Right  Hand Version with the quality stainless steel gears(include 2pcs with the m3 hole and 2pcs without hole drive gears in kit).

The set "Left - Stainless Gear"Left Hand Version with the quality stainless steel gears(include 1pcs with the m3 hole and 1pcs without hole drive gears in kit).

The set "B-Right Stainless Gear"type B Right Hand Dual Tube Connector Version with the quality stainless steel gears(include 1pcs with the m3 hole and 1pcs without hole drive gears in kit)

The set "Only Right Handle Kit" Right Hand Version with the quality stainless steel gears(include 1pcs with the m3 hole and 1pcs without hole drive gears,without other screw kit).

The set "A-Right HardenedGear"type A Right  Hand Version  with the quality hardened gears(include 1pcs with the m3 hole and 1pcs without hole drive gears in kit).

The set "B-Right Hardened Gear"  type B Right Hand Dual Tube Connector Version with the quality hardened gears(include 1pcs with the m3 hole and 1pcs without hole drive gears in kit)

1 Set - Extruder Aluminum Block DIY kit ( the left hand or right hand version,the stainless steel gear or handed gear optional )

Very important notice！

Version upgrade notice:  

Since July 6th,2022 the spring adapter has upgraded,which increases the adjustable space and helps the customer adjust the retraction distance easily.

Since September 19,2021 the product has upgraded the screws to support the two idlers and added gaskets under the gear. The product will run better and be more durable

Stainless steel driver gears

There are two versions of stainless steel driver gears: ordinary and new high quality gear. Please choose it in order.