Millwrights, Overhaul Teams & Maintenance Metrologists

3D Scanning for Millwrights & Machine Overhaulers | Alignment, Inspection & Rigging | Schimmel Engineering Nashville

For Millwrights, Overhaul Teams & Maintenance Metrologists

You're the one doing the work. The tape measure isn't good enough, the laser tracker is overkill, and there's no as-built documentation for a machine that's been in the plant for 30 years. We give you objective, dimensioned geometry of whatever you're working on — before teardown, during overhaul, or after reassembly — in formats your team can actually use.

Battery-powered, carry-in cases, Class 1 eye-safe — operational in your facility in 20 minutes. We work around your outage window, nights, and weekends. We're not a survey crew. We're a metrologist who can read a machine drawing and talk to your millwrights. Deliverables typically within 5 business days.

Machine Alignment Verification Scan

Baseplate, sole plate, machine train geometry, and equipment positions captured before and after alignment work. Establishes a dimensional baseline for the as-found condition, documents the corrected position after alignment, and produces a geometric record suitable for maintenance files, insurance documentation, and future alignment reference. Used on pump-motor trains, gearbox-compressor trains, and coupled machine sets where positional documentation is required.
From $1,400
Est. — contact for quote

Pre-Teardown As-Built Documentation Scan

Full machine geometry captured before disassembly begins — housing positions, shaft centerlines, coupling face locations, anchor bolt positions, pipe connection locations, and overall machine envelope. This baseline survives teardown and guides reassembly. Post-overhaul, a second scan confirms return-to-service geometry. Used on compressors, turbines, gearboxes, and large rotating equipment where accurate reassembly is critical and no prior as-built documentation exists.
From $1,600
Est. — contact for quote

Rigging Envelope & Clearance Verification Scan

Machine and obstruction geometry captured to plan heavy lifts and rigging moves before the crane arrives. We scan the machine being moved, all overhead structures, adjacent equipment, doorways, and floor obstacles in the travel path. The rigging team verifies clearances digitally — identifies conflicts, determines sling attachment points, and confirms the move is feasible before mobilizing equipment. Prevents the expensive discovery that something doesn't fit after the crane is on-site.
From $1,800
Est. — contact for quote

Shaft, Bore & Coupling Face Geometry Scan

Shaft journals, bore IDs, coupling hub faces, keyway geometry, and bearing seat dimensions captured for inspection and documentation. Used to verify dimensional condition of shafts and bores during overhaul, establish whether worn surfaces are within repair limits, size replacement bearings and seals, and document coupling geometry for alignment reference. Deliverable includes a dimensioned model and measurement report.
From $950
Est. per component

Foundation & Baseplate Condition Scan

Concrete foundation, grout surface, and baseplate geometry captured to assess levelness, settling, distortion, and grout condition before and after grouting operations. Used when a machine has experienced vibration problems, when a foundation is suspected to have settled, or when preparing for a precision grout pour and the contractor needs verified baseline geometry before work begins.
From $1,200
Est. — contact for quote

Housing & Casing Structural Assessment Scan

Compressor casings, gearbox housings, turbine frames, pump volutes, and structural machine components scanned during overhaul when the housing is open and accessible. Deviation mapped against OEM drawing or nominal model to assess bore wear, parting face distortion, flange face flatness, and overall housing condition. Gives the overhaul team objective data on what needs machining or replacement before the new internals go in.
From $1,400
Est. — contact for quote

Maintenance Planning Scan — Full Equipment As-Built

Complete as-built geometry capture of equipment between planned outages, used for maintenance planning, work scope development, spare parts sourcing, and contractor briefing before the next shutdown. The field team walks away with a complete dimensional record of the machine as it currently exists — not as it was delivered 20 years ago. Used to develop accurate scope, reduce surprise findings during outage, and brief contractors without sending them in blind.
From $2,200
Est. — contact for quote

On-Site Mobilization

We come to your facility and work around your outage schedule — days, nights, and weekends. Equipment is battery-powered, Class 1 eye-safe, and carry-in. No shore power, no facility shutdown, no special safety setup. Within 50 miles of Nashville is included in all base prices. All pricing is estimated — contact us with your machine type and location for a project-specific quote.

Within 50 miles of Nashville 37206Included
51–150 miles+$180
151–300 miles+$295
300+ miles / Multi-day outage supportQuoted individually
National travelContact for quote

When Millwrights Call Us

Scenario — Pre-teardown baseline
Nobody documented this machine when it was installed. Overhaul starts Monday.
A large compressor going into planned overhaul. No as-built documentation exists — it's been in the plant for 25 years and the installation drawings are long gone. We scan the full machine before a single bolt is turned — housing positions, shaft geometry, coupling faces, piping connections, foundation geometry. That baseline survives teardown and guides reassembly. The millwright knows exactly where everything was.
Scenario — Rigging clearance
A new press needs to go through a door and past two columns. The crane operator wants to know it fits before mobilizing.
We scan the machine, the doorway, both columns, and the overhead structure in the travel path. The rigging engineer verifies clearances in CAD before the crane arrives. Identifies that one column is 3 inches closer than the drawing shows. The move gets replanned digitally — lift points adjusted, approach angle changed — before anyone touches the machine. The crane arrives knowing the move works.
Scenario — Bore condition during overhaul
The gearbox housing is open. The millwright wants to know if the bores are still in spec before ordering new bearings.
With the housing split and internals removed, we scan the bore IDs, parting face surfaces, and bearing seat geometry. Deviation mapped against the OEM drawing, the report shows one bore at the edge of tolerance and one bearing seat face with measurable distortion. The overhaul team orders the right repair before reassembly — not after trying to fit new bearings and finding they're loose.
Scenario — Foundation settling
A pump train has had recurring vibration since the last turnaround. The crew suspects foundation movement.
We scan the baseplate, sole plates, and foundation surface and compare against the last documented geometry. The scan shows the foundation has settled unevenly — one side down 0.008 inches relative to the other, explaining the misalignment that returns every time the pump is aligned to print. The root cause is documented before the precision grout contractor is called.
Scenario — Shaft dimensional inspection
A shaft is coming out for replacement. The millwright wants to know if the journals are within limits before writing the work order.
We scan the shaft journals, coupling hub, and keyway geometry before it leaves the facility. The report shows one journal 0.004 inches undersize — within chrome plating repair limits — and the coupling hub bore worn beyond tolerance. The work order goes to the machine shop with objective data. No guessing at the repair scope, no surprises when the shaft comes back.
Scenario — Maintenance planning outage prep
The next planned outage is six months out. The plant engineer wants to brief contractors and order long-lead spares with accurate data.
Between outages, we scan the target equipment and produce a complete as-built model. The maintenance planner uses it to develop work scope, brief contractors with accurate geometry rather than 30-year-old drawings, identify long-lead spare dimensions, and estimate rigging requirements. The outage starts with a realistic scope and accurate data — not surprises discovered on day one of the window.

Questions from Millwrights & Overhaul Teams

How accurate is your scanning for alignment and machine geometry work?
The HandyScan Black Elite captures geometry at a measurement accuracy of 0.025mm. For most alignment documentation, bore inspection, coupling face geometry, and machine train positioning work, this is appropriate. For extremely tight-tolerance applications — turbine clearances, precision bearing fits — we'll discuss whether scanning or a contact measurement method is better suited to your specific tolerance requirement before we commit to scope.
Can you work during an outage window — nights and weekends?
Yes. We plan around your maintenance window. We've mobilized for pre-dawn starts and overnight sessions. Our equipment is set up and operational in under 20 minutes. If your outage runs over a weekend, we're available. Tell us the window and we'll plan around it.
We don't have as-built drawings. Can you still produce useful data?
Yes — that's the most common situation. No original drawings, modifications over decades, previous repairs with no documentation. We scan what exists and produce a complete geometric record of the current configuration. That record becomes the as-built reference your team works from going forward.
How is this different from a laser tracker or conventional alignment equipment?
A laser tracker is excellent for single-point precision measurements — shaft centerline, coupling face runout, bearing position — and is the right tool when you need sub-thousandth inch accuracy on specific features. Our scanning captures the complete surface geometry of the machine in a single pass — housing shape, distortion, every surface and feature at once. The two tools are complementary: scanning for as-built documentation and deviation mapping, laser tracker or dial indicators for precision alignment work. We don't replace your alignment crew — we give them better baseline data to work from.
Can you provide data the rigging company can use directly?
Yes. We deliver OBJ and STEP models that can be imported into most rigging simulation and 3D design software. If the rigging contractor has a specific format requirement, let us know. We can also produce dimensioned drawings of critical clearances and attachment point geometry if that's more useful than a 3D model for your specific team.
Can you scan a machine that's partially disassembled during overhaul?
Yes. Partially disassembled equipment is often the best time to scan — internals are accessible, housing is open, surfaces that are normally hidden are exposed. We can scan at any stage of teardown or reassembly. The more access we have, the more complete the dataset.

Ready to discuss your outage or overhaul?

Tell us what equipment you're working on, what you need documented, and when your window is. We'll respond within one business day.

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