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Assemble the BearExxa Extruder and X Axis for Prusa i3

A stiffer X axis and Bondtech-geared direct-drive extruder that replaces the stock parts on a Prusa i3 MK2.5S or MK3S · 10 parts · 6 steps · By Grégoire Saunier (Bear Lab)

Gather the parts
Print the parts
Check and strip the old X axis
Build the X axis
Build the extruder
Mount, wire and calibrate

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