Step 05.24 — Sanity-check the gantry frame, then leave it alone¶
Step 24 of 48 with a helper · Chapter 05 — Gantry: X and Y axes, XY joints, X carriage, titanium backers
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Parts: none.
Do: Lay the U-frame flat and measure from the inside face of one Y extrusion to the other, at the bridge and again at the idlers. A difference means a corner block is not pushed home.
Check
Front and rear spacing equal on the rule. Do not square or lock the gantry now; Ch 06 does it in the frame.
Helper Reads the rule at the idler end while you read it at the bridge.
What you're looking at
Four corners, all snug, none torqued. Measuring inside face to inside face at both ends tells you the two Y axes are parallel. The frame can still rack, deforming into a parallelogram, and that freedom is deliberate: Ch 06 squares it in the frame.
Good stopping point · ~40 min since the last one
front idlers and both Y axes bolted to the drives, gantry frame sanity-checked and deliberately left slightly loose. Do not tighten anything further; do not start an XY joint (each joint is a bearing stack you must finish in one go).
Source: Voron manual p.95