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Ch 13 › Part H — Quad gantry level35 / 54

Step 13.35 — Re-heat and re-QGL after squaring

Step 35 of 54 · Chapter 13 — Initial startup

(no image — see text)

Gather for this segment — steps 13.35–13.37 (~20 min)

Tools and consumables

  • printer paper, one sheet
  • the same sheet of paper

Parts: none.

Do:

  1. Machine still open, no panels. Send SET_IDLE_TIMEOUT TIMEOUT=7200 again.
  2. Bed to 100 °C, hotend to 150 °C, soak for the time you recorded at Step 13.32.
  3. G28, PROBE_ACCURACY at σ under 0.003 mm, then QUAD_GANTRY_LEVEL.

Check

QGL converges in fewer passes and from a smaller range than before. If not, the squaring did not take: go back to Ch 06b.

What you're looking at

Everything measured before squaring is now stale, so the soak, the probe check and the level are all repeated on the squared machine. A QGL that converges in fewer passes and from a smaller starting range is the evidence that squaring actually took.

Tip

Ch 06b's RESTART put [idle_timeout] back to 1800 s. Stay hot: the remaining steps run in this same session.

Source: Voron startup wizard § QGL with heated bed and chamber · Klipper docs § QUAD_GANTRY_LEVEL