Step 10.63 — Fit the Z chain bottom anchor¶
Step 63 of 80 · Chapter 10 — Wiring and Checkpoint #1
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Parts:
-
z_chain_bottom_anchor×1 · bin 10-chains - M5 roll-in T-nut ×1 · Fasteners, Tools & Misc box
- M5×10 BHCS ×1 · Fasteners, Tools & Misc box
Do:
- After 10.64, dry-fit the anchor's channel over the chain and keep the extrusion where it runs straight at both Z extremes (verify on bench).
- M5 T-nut into that slot, chain into the channel, M5×10 BHCS through.
Check
Through full Z travel: the chain slides through the anchor without snagging, the loop stays open at the bottom, nothing stretches at the top.
What you're looking at
The bottom anchor is a printed clip with an open channel: the chain runs through it, so it is a mid-run keeper, not a chain end. p.203 shows it bolted to a horizontal extrusion, the chain passing vertically through its channel.
Tip
p.203 gives the fastener, not the extrusion. The candidates are the frame's rear-bottom extrusion and the gantry's rear beam; the dry-fit decides.
Source: Voron manual p.203