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Step 01.17 — Load four M5 T-nuts into the bottom rails¶
Step 17 of 22 · Chapter 01 — Frame
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Parts:
- M5 roll-in T-nut ×4 · Fasteners, Tools & Misc box
Do: Roll two M5 T-nuts into the top channel of the front bottom rail and two into the rear, one per bed-extrusion end. Leave them loose, roughly where the brackets will land.
Check
All four T-nuts rotate freely and sit flat. If one is tight, swap it or use the other channel face.
What you're looking at
Manual p.19 shows four M5 roll-in T-nuts dropped into the top slots of the two bottom rails. Each is the thread a bracket bolt picks up, loaded now and slid into position later.
Source: Voron manual p.19 · LDO Build Notes (Rev D) · Video: Part 1 @1:28:12