Step 04.19 — B idler: check your work¶
Step 19 of 38 with a helper · Chapter 04 — A/B drive units and front idlers
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Parts: none.
Do:
- Match the five circled features on p.72: ribbed face, M5×40 head in the top boss, exposed bearing pair, M3×40 head with washer, foot-flange bolt hole.
- Set it in the B IDLER tray.
Check
All five match, bearings free. Held side by side, the two idlers' bearing pairs sit at visibly different heights.
Helper Points to each circled feature on the page while you find it on the idler.
What you're looking at
Manual p.72: the finished B idler with five circled features, plus the comparison that catches a hand error, the two idlers side by side. Their bearing pairs sit at visibly different heights, the separation between the two belt planes.
Good stopping point · ~35 min since the last one
the B (front left) idler is complete and checked against p.72, and the two idlers sit side by side with visibly different bearing heights. Both are in their trays. Nothing is open.
Source: Voron manual p.72