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  1. Insert wisdom here. Insert wisdom here.
    • Insert wisdom here.

  2. We are going to test a little bit your dexterity in this step :) Prepare the following hardware: 2x M4x10 screws (reused from your Original Prusa).
    • We are going to test a little bit your dexterity in this step :)

    • Prepare the following hardware:

    • 2x M4x10 screws (reused from your Original Prusa).

    • 2x psu_upper_mount.

    • Place the M4x10 screw in the internal hole of the psu_upper_mount.

    • If you struggle to do it you can insert a finger in the biggest hole (check the 3rd image). Like this you can hold and guide a little the screw.

    • Insert the other M4x10 in the remaining psu_upper_mount.

    • Now try to not loose the screws until we are bolting them on the PSU :D

  3. The next steps are for the Prusa silver PSU only. If you have the Prusa black PSU, go to step xxx
    • The next steps are for the Prusa silver PSU only.

    • If you have the Prusa black PSU, go to step xxx

    • If you don't know which PSU you have, please check the second image.

    • Prusa black PSU

    • Prusa silver PSU

    • Image copyright: Prusa Research

  4. Attach the psu_upper_mounts on the silver PSU body. Tighten the M4 screws completely.
    • Attach the psu_upper_mounts on the silver PSU body. Tighten the M4 screws completely.

  5. The psu_lower_mount in this step is slightly different between MK2(S)/MK2.5(S) and MK3(S) but they have the same functionality and assembly. Take the psu_lower_mount and insert a square nut. Slide 1x t-nut on the back extrusion from the right side of the frame.
    • The psu_lower_mount in this step is slightly different between MK2(S)/MK2.5(S) and MK3(S) but they have the same functionality and assembly.

    • Take the psu_lower_mount and insert a square nut.

    • Slide 1x t-nut on the back extrusion from the right side of the frame.

    • Assemble the psu_lower_mount with 1x M5x10 screw. Don't tighten fully yet as it will need some repositioning.

  6. Rotate the frame to the right side. Be careful with the extruder, it will move down. Rotate the frame to the right side. Be careful with the extruder, it will move down. Rotate the frame to the right side. Be careful with the extruder, it will move down.
    • Rotate the frame to the right side. Be careful with the extruder, it will move down.

  7. Insert wisdom here. Insert wisdom here.
    • Insert wisdom here.

Grégoire Saunier

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