Step 08.24 — Set the gear mesh, then tighten both motor bolts¶
Step 24 of 65 · Chapter 08 — Toolhead: Stealthburner, Clockwork 2, Revo HF, Nitehawk-SB V2
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Parts:
- the extruder assembly · already on the bench
Do: Slide the motor until the pinion and the 50T teeth fully overlap with a very small gap between the tooth faces. Turn the drive shaft by hand as you adjust. Then tighten the M3×30 first, the M3×8 second.
Check
Rotating the drive gear by hand gives a barely perceptible backlash and no tight spot anywhere through a full turn. Both bolts tight.
What you're looking at
Gear mesh is how deeply the pinion and the 50 T teeth overlap. Too shallow and the teeth skip under load; preloaded and the drivetrain binds and whines. You want full tooth overlap with a faint backlash, then the motor locked there.
Source: SB manual p.30 · Video: Part 5 @1:41:54 (differs: builds Afterburner + Clockwork 1; this kit is Stealthburner + Clockwork 2 + Revo HF)