Step 07.5 — Set both front-idler tensioners¶
Step 5 of 39 with a helper · Chapter 07 — A/B belts and tensioning
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Parts:
- the two front-idler M3×40 SHCS · already on the bench
- the two front-idler M3 washers · already on the bench
Do:
- Back each M3×40 out until the tension arm is at its slackest end of travel.
- Wind it back in exactly 4 turns. Count the turns and give both idlers the same number.
Check
Both tensioner screws stand proud of the front idler bodies by the same amount, with travel left in both directions.
Helper Counts the four turns aloud on each tensioner so both idlers get the same number.
What you're looking at
The front-idler tensioners are the two blue parts at the front; each carries an M3×40 whose job is belt tension. Winding it in pulls the idler forward and tightens that belt, backing it out releases it. Both went on in Ch 04.
Good stopping point · ~25 min since the last one
both belt paths traced against p.126–127 and both front-idler tensioners backed out to the loose starting position. Nothing is cut. Do not start cutting belt unless you can also thread it.
Source: Voron manual p.128 · Voron docs § V2 Gantry Squaring, step 5