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Ch 0224 / 44

Step 02.24 — Close the drive with z_drive_main and six M3×40

Step 24 of 44 · Chapter 02 — Z drives, Z idlers, Z rails, deck panel

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Parts:

  • M3×40 SHCS ×6 · Fasteners, Tools & Misc box
  • one z_drive_main_a with its side inserts · already on the bench

Do:

  1. Lower the main over the shaft, counterbores up, halves meeting with no gap.
  2. Drive the six M3×40 SHCS through the counterbores into the retainer's inserts, criss-cross. Snug, then stop.
  3. Every head must sink into a counterbore.

check Check

Six heads down in their counterbores, no gap along the joint line, and the shaft still spins freely by hand with the belt on.

What you're looking at

Manual p.36: z_drive_main, the deeper half, closing over the shaft. Its flat face has six counterbored holes, no inserts, and a rectangular window that clears only the 80T rim. The six M3×40 run through both halves and bite the inserts in the retainer's outer face.

tip Tip

If the shaft binds, a bearing is trapped crooked: back the screws off and reseat.

Source: Voron manual p.36 · Video: Part 1 @3:29:31

← PreviousStep 02.23 — Check the shaft position against the section view

Next →Step 02.25 — Fit the blue baseplate and its captive M5 nut