1. Extrude consumables, pull back more accurately
2. Increase the pulley to reduce wear and improve stability
3. Compatible with more consumables, such as flexible consumables TPU, it is more convenient to change materials
4. All-metal structure, easy to replace, and increased heat dissipation holes
5. You can switch between short-range and long-range extrusion at any time, which is convenient for disassembly and assembly, and does not affect the function of the original printer
6. Material: aluminum alloy
7. Applicable models: suitable for Ender 3/Cr10
8. Description: the motor is not included in the shipment
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