Step 04.5 — Press an M5 nut into each tension arm foot¶
Step 5 of 38 · Chapter 04 — A/B drive units and front idlers
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Parts:
- M5 hex nut ×2 · Fasteners, Tools & Misc box
- both tension arms · already on the bench
- small flat screwdriver · tool
Do: Drop an M5 nut into the hex pocket in the underside of each arm's foot. Seat it fully with a flat driver; it must sit below the face, never proud, or the arm will not lie flat.
Check
The nut does not rock and does not stand above the foot. Nothing holds it in yet; keep the arms flat.
What you're looking at
Manual p.64: an M5 hex nut dropping into a pocket in the foot of each tension arm. The vertical M5×40 axle threads into that captive nut, so the bearing stack is clamped inside the arm and moves with it.
Good stopping point · ~30 min since the last one
the bench is split into four labelled kits, every part carries its destination in marker, the two inserts are in a_drive_frame_upper, one is in each tension arm and both M5 nuts are seated. Unplug the iron. Nothing is stacked yet.
Source: Voron manual p.64