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Batch B03Before you start

Before you start Batch B03

Before you start · Batch B03 — A/B drive units + front idlers

Revali watching a first layer
The corners the belts turn on. Flange seats again, which means Gate B votes first.

Time: 8.5 h (1 plate) — PrusaSlicer 2.9.6 estimates.

Sessions: 1 plate start (~5 min hands-on, 8.5 h unattended) + ~15 min inspect and bin.

Prerequisites: Gate B passed (Step B00.7 — these are F695 flange seats; the caliper and insert rows run early, on what is already on the bench). B02 is not a print prerequisite: its accent [a]_cable_cover, [a]_z_chain_retainer_bracket and [a]_tensioner_left/right printed one batch earlier, at B02, and are already in 04-A / 04-B.

Printed parts

STL Repo path Qty Colour g ea Bin
a_drive_frame_lower.stl Voron-2 STLs/Gantry/AB_Drive_Units/ 1 Black 22.4 04-A
a_drive_frame_upper.stl Voron-2 STLs/Gantry/AB_Drive_Units/ 1 Black 21.8 04-A
b_drive_frame_lower.stl Voron-2 STLs/Gantry/AB_Drive_Units/ 1 Black 20.5 04-B
b_drive_frame_upper.stl Voron-2 STLs/Gantry/AB_Drive_Units/ 1 Black 21.3 04-B
front_idler_left_lower.stl Voron-2 STLs/Gantry/Front_Idlers/ 1 Black 7.7 04-B
front_idler_left_upper.stl Voron-2 STLs/Gantry/Front_Idlers/ 1 Black 14.1 04-B
front_idler_right_lower.stl Voron-2 STLs/Gantry/Front_Idlers/ 1 Black 13.8 04-A
front_idler_right_upper.stl Voron-2 STLs/Gantry/Front_Idlers/ 1 Black 7.9 04-A

Hardware: none.

Read first

  • Checkpoint after B03: the F695 flange seats caliper 15.00 mm now, and the two halves of each drive unit must close flat with no gap. On kit day the real F695-2RS (13 mm OD, flanged) bearing/spacer stacks must drop into those seats without reaming. (625-2RS is the Z-drive bearing, B01 — not this batch.)
  • Most commonly reprinted here: a/b_drive_frame_lower — the bearing seats are the tightest fit in the machine.
  • A and B share one plate (merged 2026-09-06, one swap instead of two), so a failed plate costs both drive units. Watch the first layer before you walk away from an 8.5 h print.

helperHelper steps: 2 · B03.2, B03.5