Re-Cut the Mold Mid-Program — A Top-5 Sink Brand Story

TODO: William to confirm or refine these details

This case is anchored in a real story Wetop has shared internally — the mold re-cut for a sink-brand customer at the factory’s cost. The narrative arc above (CAD revision miss → engineering acknowledgment → re-cut at our expense → relationship shift → program expansion) is the structural skeleton.

Before this case study goes live, William should refine these specifics:

1. Customer tier: “Top-5 US sink brand caliber” is the safe anonymous framing. Alternative: “Top-3 US premium sink brand caliber” if William wants stronger positioning. Or specify a stainless / granite-composite / fireclay sub-segment if it matches the real customer.
2. The dimensional discrepancy: 2 mm drain-cutout offset is plausible but William should confirm the actual measurement and which sink dimension (drain cutout, bay length, corner radius, foot profile) the issue was on.
3. Cost absorbed: $4,800 is an educated estimate. William should confirm or replace with the actual tooling re-cut cost we ate.
4. Schedule: 6 weeks planned → 5 weeks delivered. Confirm or adjust.
5. Volume / duration: 75,000 pcs/yr across 8 SKUs over 4 years. William to verify.
6. The relationship-shift quote: “moved from ‘an audited vendor’ to ‘the accessory supplier our internal team uses as a benchmark’” — this is a fictionalized reconstruction. William to either provide the real quote (anonymized) or confirm the paraphrase is fair.

Once William confirms or corrects, set needsWilliamInput: false in frontmatter and remove this section.

The story (placeholder narrative, William to refine)

What happened

A top-5 US sink brand had just signed off on a new SKU in their existing range — a granite-composite undermount sink, rear-offset strainer, slightly trapezoidal bay geometry. Eight silicone bottom grid variants tooled against the range. We’d done the CAD review four weeks earlier with their product team; molds cut, first article scheduled.

When the first article landed in the customer’s QA lab, seven of the eight grids seated perfectly. The eighth — the granite-composite undermount — sat with its drain cutout 2 mm off the strainer center. Visible. Their QA flagged it as a fit defect.

We re-traced the review log on our side. Our mold workshop had cut to the dimensions on the signed-off CAD packet. But the customer’s source sink CAD had been silently revised — a drainage upgrade between RFP and first article — and the revision hadn’t propagated through to the accessory-program review.

What the industry-default response would have been

Three scripts dominate:

1. “The signed CAD is the signed CAD — please approve the as-is article or pay for rework.”
2. “We can offer a shim insert that brings the drain cutout into alignment.”
3. “Let’s ship the 500-piece first batch as-is and propose a revision in batch 2.”

None of those serve the retail launch. All three protect the supplier’s margin at the customer’s risk.

What we did instead

The engineering lead got on a Zoom with the customer’s product manager within 24 hours. Three points:

1. Acknowledged the sink-CAD-revision miss on our review side. We should have caught the silent revision; we didn’t.
2. Proposed a full mold re-cut on our cost. Tooling absorption: $4,800 (placeholder figure — see TODO above).
3. Committed to a 6-week schedule that still hit the retail launch window.

The re-cut landed in 5 weeks. Launch shipped on schedule with the corrected geometry.

What it cost us, and what it bought

What it bought: a customer who has now run with us for four years across eight SKUs in the original range, plus expansion into two adjacent sink ranges from the same portfolio. Roughly 75,000 pieces per year per range at maturity.

The relationship-shift moment

Some months after the re-cut, the customer’s program manager mentioned offhand that the decision had changed how their internal accessory team referenced us. The exact phrasing William can refine — the substance was that Wetop moved from “a vendor we audit twice a year” to “the supplier our internal accessory team uses as the benchmark when reviewing other categories.”

That shift is the thing the $6,000 actually bought. Not the corrected SKU. The reputation.