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Assemble the Bear Frame Upgrade 2.1 for Prusa i3

Rebuild an Original Prusa i3 MK2, MK2.5 or MK3 on a stiff 20 × 40 aluminium extrusion frame, reusing almost all of its parts · 12 parts · 7 steps · By Grégoire Saunier (Bear Lab)

Gather the parts
Print the parts
Check the printer and take it apart
Build the Y and Z frames
Fit Y and Z motion
Mount the electronics, LCD and PSU
Finish and adjust

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