Step 06b.1 — Raise the stepper idle timeout¶
Step 27 of 42 · Chapter 06 — Z axis (and Chapter 06b — Gantry squaring)
(no image — see text)
Gather for this segment — steps 06b.1–06b.16
Already on the bench
- the four Z-joint M5×40 SHCS
Parts: none.
Do: In the console: SET_IDLE_TIMEOUT TIMEOUT=99999. The Z motors must stay energised and holding the gantry for the whole session. Nothing else in Part B happens before this. Voron step 1.
Check
Command accepted, no error. The Z motors are audibly holding.
What you're looking at
The procedure needs SET_IDLE_TIMEOUT, G28, QUAD_GANTRY_LEVEL and SET_STEPPER_ENABLE. It ends at Step 06b.16 by sending you back to Ch 13 Step 13.35. Final belt tension (Ch 14 Steps 14.4–14.5, cold, door open) and then the heat soak, the hot QGL runs and the hot tighten of the Z joints (Step 14.6) are Ch 14's, after the panels go on in Ch 11 Part B.
Why it is split out: the procedure's first moves are to fully release A/B belt tension and drop the lower Z joints. Anything you tension before this gets undone (survey §5.2 W1, §4.4 #2). Ch 07's A/B tension and the one you set at step 06b.15 are both provisional; Ch 14 Step 14.4 sets the final value.
Part B is transcribed from: V2 Gantry Squaring, docs.vorondesign.com — 17 numbered steps. Steps 1–13 are transcribed below with the original number cited on each (plus one added Z-belt step); steps 14–17 (soak, hot QGL, hot Z-joint tighten, restart) are handed to Ch 14 at Step 06b.16. Ellis' identical section is the same text. The manual's own p.122 QR (voron.link/cekh81l) points here.
Extra tools for Part B: 150 mm machinist square, digital caliper, 150 mm rule, phone spectrum app, hex 2.5/3/4 mm.
A console command; nothing to look at. Klipper de-energises idle steppers after 600 s by default, and with the Z motors released the gantry falls. This sets the timeout to effectively never for the session.
Caution
Do this from inside Chapter 13, not now. Start Part B only when Ch 13 Step 13.34 sends you here, once the machine homes and QGLs. It needs a running printer, cold and open.
Tip
Z Locks make step 06b.8 easier by holding the gantry while the joints are off. Not required. src
Source: Voron docs § V2 Gantry Squaring