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Ch 0423 / 38

Step 04.23 — A drive: close it with a_drive_frame_lower

Step 23 of 38 · Chapter 04 — A/B drive units and front idlers

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Parts:

  • a_drive_frame_lower ×1 · bin 04-A

Do:

  1. Lower a_drive_frame_lower onto both stacks, aligning the M5×30 threads with their blind holes.
  2. Run both bolts down alternately, two turns at a time, until the frames meet.
  3. Do not over-tighten: these bolts thread into plastic.

check Check

Both bearing pairs still spin free with the frames closed, and neither bolt was taken past closed-and-snug.

What you're looking at

Manual p.74 and the pair render: a_drive_frame_lower, the other half of the printed frame, closing over both posts. The M5×30 bolts thread directly into the plastic of the lower frame, so they stop at closed-and-snug rather than torqued.

pause Good stopping point · ~25 min since the last one

the A drive frames are closed snug over both bearing stacks; the motor and pulley are not fitted yet. Put the closed frame in the A DRIVE tray; never stop with a stack loaded and the lower frame off.

Source: Voron manual p.74

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