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Step 04.6 — A idler: stand the assembly-aid bolt in the lower frame

Step 6 of 38 · Chapter 04 — A/B drive units and front idlers

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gather Gather for this segment — steps 04.6–04.12 (~40 min)

Motion box

  • F695 bearing ×2

Fasteners, Tools & Misc box

  • M5×40 SHCS ×1
  • M5 precision spacer ×2
  • M3 washer ×1
  • M3×40 SHCS ×1

Printed parts

  • front_idler_right_lower ×1 · bin 04-A
  • front_idler_right_upper ×1 · bin 04-A

Already on the bench

  • [a]_tensioner_right, insert and M5 nut fitted · bin 04-A
  • the same M5×40 SHCS

Parts:

  • front_idler_right_lower ×1 · bin 04-A
  • M5×40 SHCS ×1 · Fasteners, Tools & Misc box

Do: Lay front_idler_right_lower flat with its idler boss facing up. Push the M5×40 SHCS up through the boss from underneath so the thread stands vertically. It is only an alignment aid and comes out at Step 04.9.

check Check

The bolt stands square to the frame and the head sits fully home underneath. If it leans, the stack will not seat.

What you're looking at

Manual p.65: the A front-right idler starting. front_idler_right_lower is the taller of the two lower frames, 21.6 mm against 11.6 mm. The M5×40 standing in its boss is not a fastener yet but a temporary spindle for the bearing stack.

Source: Voron manual p.65

← PreviousStep 04.5 — Press an M5 nut into each tension arm foot

Next →Step 04.7 — A idler: build the bearing stack