Write the unit on upload. An STL with no unit is a question, not a locked price. Envelope is about 600 × 400 × 250 mm — the wrong unit either explodes the envelope or shrinks the part below process limits.
Preview with no login. Quantity 1 can re-upload. 12h UTC+8.
Lead time only means something after units are confirmed. No implants.
Related process guide
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Upload STEP (preferred, ≤80 MB). Preview a quote with no account; sign in to save or order.
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