Step 04.37 — B drive: check your work and the belt path¶
Step 37 of 38 with a helper · Chapter 04 — A/B drive units and front idlers
Tap to enlarge
Parts:
- free end of the 6 mm belt reel, uncut · tool
- masking tape · consumable
- marker · tool
Do: Motor down, compare against p.80's elevation: pulley in the lower plane. Lay the belt's free end across the pulley teeth, the near pair and the far post's lower pair. Label it B: REAR LEFT.
Check
Belt path straight: belt flat on the pulley, the near pair and the far post's lower pair; no tilt, no flange contact.
Helper Sights along the belt at eye level and says if it tilts.
What you're looking at
Manual p.80's elevation and the belt's free end again. The B pulley runs in the lower belt plane, level with the near pair and the far post's lower pair.
Tip
the far post's upper pair sits 10 mm above the belt. That is correct: it carries the A belt, so leave the stack alone.
Good stopping point · ~45 min since the last one
the B drive is finished and labelled B — REAR LEFT, pulley at 6.5 mm hub-up, both cable exits facing each other when the drives are held in their build positions.
Source: Voron manual p.80