Step 06.20 — Clamp the second end and pull it tight¶
Step 20 of 42 with a helper · Chapter 06 — Z axis (and Chapter 06b — Gantry squaring)
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Parts:
- the upper belt clip on this corner · already on the bench
- the two M5×16 BHCS on top of this corner · already on the bench
Do: Feed the returning belt end between the upper clip and the frame's serrated top, teeth down. Pull the tail hard and hold it while you tighten both M5×16, firm rather than crushed.
Check
The long run plucks with real tension, not a floppy note; the tail does not slip and the first belt end is still clamped.
Helper Pulls the belt tail tight and holds it while you tighten both M5×16 bolts.
What you're looking at
The returning end feeds in under the upper clip, teeth down on the frame's serrated top, as the first end did under the lower clip. Pulling the tail hard while you tighten takes out the slack; the tensioner only fine-tunes the rest.
Source: Voron manual p.120 · Video: Part 5 @0:47:55