These are in stock in limited supply!
All new Duplicator 4X printers come with this spring-loaded extruder drive block upgrade as a standard feature.
Includes (1) drive block for the right extruder and (1) drive block for the left extruder. DOES NOT INCLUDE THE (2) V-BEARINGS NEEDED TO COMPLETE THE UPGRADE. The v-bearings are meant to be sourced from your original MK8 assembly.
*Note: If you purchased your Duplicator 4 or 4X printer from Wanhao USA...this upgrade and shipping are FREE! Contact us at email@example.com to claim your upgrade. Include your name, model of printer purchased, and the date of your purchase and we will find you and message you back.