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WATCHMAN expansion mandrel prototype first article 316L prototype stent die set first article
On-Demand CNC Platform

Rapid Prototyping in
Maple Grove, MN

Boston Scientific tooling teams in Maple Grove get first-article WATCHMAN mandrels (20–35mm) in 3 days. We prototype stent die sets in 316L or Al 6061, and catheter hub and delivery system components with no minimums. Same-day quoting, ISO 13485 documentation from unit #1.

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ISO 13485:2016 · FDA 21 CFR 820 QSR · No minimums · Same-day quoting · NDA ready.

Rapid CNC prototyping for Maple Grove, MN. RivCut supplies rapid CNC prototyping to engineering and manufacturing teams across Maple Grove and the Upper Midwest and nearby Plymouth, Minneapolis, Minnetonka, and Brooklyn Park. Parts are machined 100% in the USA at our Union City, California facility and reach Maple Grove in about 4–5 business days by ground freight — with expedited air and AOG options when a production line is down.

Boston Scientific’s Maple Grove campus manufactures WATCHMAN FLX and PROMUS / Synergy coronary stents — two programs where tooling geometry directly determines whether the implantable device performs its cardiovascular function. Every Maple Grove order ships with CMM inspection, full material traceability, and a first-article report on request.

3 Days
Rush WATCHMAN mandrel
first-article lead time
From CAD release
Same Day
Quoting on cardiovascular
device tooling uploads
Business hours
No Min.
Minimum order quantity —
one prototype accepted
No setup fees
Unit #1
ISO 13485 documentation
from first prototype
Standard on all orders
Rapid Prototyping Explained

What Is Rapid Prototyping for Maple Grove Cardiovascular Device Programs?

Rapid prototyping in Maple Grove is not generic machining with a fast turnaround — it is cardiovascular tooling first-article development that directly supports the WATCHMAN FLX design validation timeline. When a Boston Scientific WATCHMAN program needs to validate a new mandrel OD profile in the 20–35mm size range, or a stent program needs a prototype die set in 316L before committing to production 17-4 PH H900 tooling, or a delivery system program needs development-stage catheter hub components, the cycle time is measured in days — not weeks. RivCut provides same-day quoting, 3-day rush capability on nitinol mandrel prototypes, 5-day standard turn on stent die sets, ISO 13485:2016 documentation from unit #1, free DFM review on every upload, and no minimum order quantity. The goal is to get cardiovascular device programs to design verification faster — not to fill a production queue.

1

Same-Day Quoting

Upload STEP or IGES. Get a price for WATCHMAN mandrel prototypes, stent die sets, and catheter hub development parts within hours during business hours. No RFQ process.

2

3–5 Day First Articles

3-day rush for WATCHMAN mandrel prototypes. 5-day standard for stent die sets. Development catheter hub components in 4–6 days. All with ISO 13485 documentation.

3

Free DFM on Every Upload

We flag mandrel geometry issues, die clearance angles, wall thickness concerns, and tolerance stack problems before machining — so you don’t pay for a revision cycle you could have caught at the design stage.

What We Prototype for Maple Grove

Cardiovascular Device Tooling Prototype Types

First-article cardiovascular tooling that keeps WATCHMAN and stent programs on their design validation timeline.

WATCHMAN Mandrel Prototypes (20–35mm)

3-day rush first-article WATCHMAN FLX expansion mandrel prototypes in the 20–35mm LAA closure size range. Nitinol (ASTM F2063) or 316L stand-in material for initial geometry validation before committing to nitinol heat lot.

3-Day Rush / Nitinol / 316L

Prototype Stent Die Sets (316L or Al 6061)

First-article stent laser-cutting fixture die sets in 316L stainless or Al 6061 to validate lumen geometry and mandrel concentricity before committing to production-grade 17-4 PH H900 dies. Same 5-axis toolpaths as production runs for accurate dimensional validation.

316L / Al 6061 / 5-Day

Catheter Hub Development Components

Development-stage catheter hub and delivery system components in PEEK (ASTM F2026), 316L (ASTM F138), Ti-6Al-4V (ASTM F1472), and 17-4 PH H900 for WATCHMAN and stent delivery catheters. ISO 13485 documentation from unit #1.

PEEK / Ti / 316L / 4-6 Day

Nitinol Heat-Setting Fixture Prototypes

Prototype nitinol heat-setting fixture sets for WATCHMAN frame geometry development. Stainless or Ti-6Al-4V fixture bodies sized for heat-setting oven clearance. Free DFM review on fixture geometry before any machining begins.

316L / Ti-6Al-4V / 5-Day

Stent Crimping Mandrel Prototypes

First-article stent crimping mandrel prototypes in 316L or 17-4 PH H900 to validate crimp geometry and mandrel clearance. Zeiss CMM verification of mandrel OD and concentricity included. Ships with first-article inspection report.

316L / 17-4 PH / 5-Day

Inspection Gauge Prototypes

First-article inspection gauge bodies in 17-4 PH H900 or 316L for stent tooling dimensional validation. Zeiss CMM verification of gauge geometry. Faster than production gauge lead times to support design verification timelines.

17-4 PH / 316L / 5-Day
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WATCHMAN mandrel prototype first article with first-article inspection report
First-Article Inspection Complete — 4 Days CAD to Delivery
Real Part. Real Results.

WATCHMAN Mandrel Prototype — 24mm Size (316L Stand-In)

Rapid first-article WATCHMAN expansion mandrel in 316L for initial geometry validation before committing to ASTM F2063 nitinol heat lot. Delivered to Maple Grove in 4 business days with first-article inspection report and 3.1 MTR.

4 Days
CAD release to
Maple Grove dock
±0.0005"
Mandrel OD
all measurement positions
No Min.
Minimum order —
1 prototype accepted
Unit #1
ISO 13485 docs
from first prototype
  • First-article inspection report — all OD measurement positions
  • 316L ASTM F138 3.1 MTR & ASTM A967 passivation cert
  • Free DFM review flagged mandrel taper geometry optimization
  • NDA-protected project files — 21 CFR Part 11 audit trail
What Ships with Every Maple Grove Prototype Order

Speed. Documentation. DFM.

Three rapid-prototyping commitments for every Maple Grove cardiovascular tooling order.

Rush Capability

Speed-to-first-article is the primary objective for cardiovascular tooling prototypes.

  • 3-day rush WATCHMAN mandrel first articles
  • 5-day standard stent die sets
  • Same-day quoting on all uploads
  • Overnight SFO→MSP air for critical-path parts

ISO 13485 Documentation from Unit #1

No “no-docs prototype tier” — every cardiovascular tooling order ships with full documentation.

  • First-article inspection report (FAIR)
  • 3.1 MTRs per EN 10204 with every lot
  • ASTM A967 passivation certificate
  • ISO 13485:2016 & FDA 21 CFR 820 aligned

Free DFM on Every Upload

Catching problems before machining saves revision cycles and schedule time.

  • Mandrel geometry and OD profile review
  • Die clearance angles and lumen concentricity
  • Wall thickness and tool access flags
  • Tolerance stack and GD&T review
How It Works

From CAD File to Maple Grove in Days

Three steps. No minimums. ISO 13485 from unit #1.

Step 1

Upload CAD — Get Same-Day Quote

Upload STEP or IGES. Specify material, quantity, and rush level. We run free DFM on every upload and flag mandrel geometry issues, die clearance problems, and tolerance concerns before quoting. Quote returns same business day.

Step 2

We Machine & Inspect

Your prototype mandrel, die set, or catheter component machines on the same 5-axis equipment as production runs. Zeiss CMM inspection produces the first-article inspection report. No shortcuts on documentation for prototype orders.

Step 3

Pack, Document, Ship to Maple Grove

Parts are ultrasonically cleaned, passivated per ASTM A967, packaged with FAIR and 3.1 MTRs, and shipped to Maple Grove via 3-day LTL (I-94/I-90) or overnight SFO→MSP air for rush orders.

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FAQ

Common Questions About Rapid Prototyping in Maple Grove

3-day rush is available for WATCHMAN expansion mandrel prototype first articles in the 20–35mm size range. Standard first-article lead time is 5–7 business days from CAD release for nitinol mandrels with full ASTM F2063 documentation. Same-day quoting is standard — upload your STEP file and get a price within hours.
Yes. Prototype stent die sets in 316L stainless or Al 6061 are a cost-effective way to validate lumen geometry and mandrel concentricity before committing to production-grade 17-4 PH H900 dies. We machine prototype dies with the same 5-axis toolpaths as production runs, so dimensional validation translates directly to the production tool.
Yes. ISO 13485:2016 documentation — first-article inspection report, 3.1 MTRs, ASTM A967 passivation certificate — is standard from unit #1 on cardiovascular tooling prototype orders. We do not offer a “no-docs” prototype tier for medical tooling. Boston Scientific supplier qualification documentation starts at the first prototype lot.
No minimum order. One WATCHMAN mandrel prototype, one stent die prototype, one catheter hub development part — all accepted. We price each order individually based on material, complexity, and quantity. No setup fees for prototype orders.
Yes. Upload your STEP or IGES file on our instant quote page. Most cardiovascular tooling prototype quotes return within a few hours during business hours. Complex nitinol mandrel geometry with custom OD profiles may take same-day manual review, but we always respond same business day.
Yes. Iterative design-validate-revise cycles for WATCHMAN mandrel geometry development are a core use case. We support rapid iteration by keeping your DFM notes, material lot, and toolpath on file so design B and C revisions machine faster than the initial first article. Most revision cycles turn in 3–5 business days.
Maple Grove is approximately 1,900 miles from our Union City, CA shop. Ground LTL freight via I-94/I-90 to MSP is 3 business days; overnight air SFO/OAK→MSP is same-day for schedule-at-risk first articles. Rush prototype orders with overnight shipping can deliver to Maple Grove in 4 total days from CAD release.
Nearby Cities

Rapid Prototyping Near Maple Grove

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Ready to Start?

Upload Your Prototype CAD File

WATCHMAN mandrel prototypes. Stent die sets. Catheter hub development parts. Same-day quote. 3–5 day delivery.

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No minimums · ISO 13485:2016 from unit #1 · Free DFM review · Same-day quoting · Ships to Maple Grove in 4–7 days

Why Maple Grove Needs Rapid Prototyping

How Maple Grove's Top Industries Use Rapid Prototyping

Maple Grove's economy drives specific machining demand. Here's what we see from local teams.

Boston Scientific — WATCHMAN & Coronary Stent Tooling

Boston Scientific’s Maple Grove campus manufactures WATCHMAN FLX and PROMUS / Synergy coronary stents — two programs where tooling geometry directly determines whether the implantable device performs its cardiovascular function. WATCHMAN expansion mandrels that generate non-uniform Af transformation create asymmetric frame expansion. Stent dies with incorrect lumen clearance create laser-cutting kerf variance. Both are DFM-stage decisions that cannot be corrected after the tooling is cut and the first production campaign has run.

RivCut gives Boston Scientific tooling engineers DFM reviews that address the actual failure modes — so the mandrel or die geometry arriving for the first prototype lot is already optimized for the cardiovascular function it supports.

WATCHMAN FLXCoronary StentsNitinol MandrelsStent Dies
Insider tip: If a WATCHMAN mandrel DFM review does not specifically address OD uniformity at 36 angular positions across the mandrel body, it is not a cardiovascular tooling DFM review. Generic corner-radius and wall-thickness checks do not catch the failure mode.

CSI — Atherectomy Catheter Tooling DFM

Cardiovascular Systems Inc. (CSI) in Maple Grove runs orbital atherectomy devices for calcified coronary and peripheral artery disease. CSI’s catheter tooling DFM requirements include precision-machined catheter component geometry review for assembly stack tolerance, material selection for catheter hardware that must survive chemical sterilization cycles, and GD&T callout analysis for components that interface with atherectomy crown geometry. CSI tooling programs have their own supplier-quality documentation expectations that mirror Boston Scientific’s rigor.

RivCut provides DFM reviews for CSI catheter tooling with the same cardiovascular-specific depth as WATCHMAN and stent tooling — geometry, material, GD&T, and machining-parameter risks all addressed in writing within 24 hours.

CSI AtherectomyCatheter ToolingTolerance Stacks
Insider tip: Chemical sterilization-cycle dimensional behavior is a DFM-stage material-selection decision. Fix material before the verification tooling is cut, not after the first sterilization lot fails dimensional inspection.

Nitinol Tooling DFM — A Maple Grove Specialty

Nitinol tooling design is a niche DFM category all its own. WATCHMAN mandrels and heat-setting fixtures require understanding of nitinol’s superelastic and shape-memory properties, the Af (austenite finish temperature) dependence on heat-setting mandrel geometry, the effect of surface work-hardening on nitinol Af uniformity, and the interaction between mandrel OD tolerance, expansion-cycle count, and mandrel wear. Only Maple Grove and a small number of other cardiovascular corridors concentrate enough nitinol tooling demand to make this a named DFM service line.

RivCut DFM for nitinol tooling covers mandrel OD profile, surface finish requirements, machining-parameter risk for subsurface work-hardening, and material selection for the mandrel shaft and heat-setting fixture substrate.

Nitinol ASTM F2063Shape-MemoryAf Transformation
Insider tip: Mandrel surface work-hardening from aggressive machining parameters shifts the nitinol Af by 2–5°C locally, creating non-uniform transformation at the mandrel OD contact zone. Validate surface integrity before committing to production tooling parameters.
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