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Expert CNC Multi-Axis Turning Services for Precision Parts

Achieve unmatched dimensional accuracy with our CNC multi-axis turning services, optimized for complex precision parts. Whether you need intricate medical components, aerospace fittings, or tight-tolerance industrial parts, our calibrated equipment and proven methodologies ensure your turned parts meet exacting specifications every time. We eliminate the guesswork with NIST-traceable accuracy and real-world machining expertise.

CNC multi-axis turning center machining precision metal component

Our Precision Turning Calibration Services

Comprehensive calibration solutions designed to maximize accuracy, repeatability, and performance of your CNC turning equipment.

Rotary Axis Calibration

Verify angular positioning accuracy, repeatability, and alignment of rotary tables and C-axis components using Renishaw's advanced calibration system. Identify mechanical wear, encoder drift, and setup errors that compromise multi-axis turning precision.

Linear Accuracy Verification

Measure positioning accuracy, repeatability, straightness, and squareness across all linear axes using laser interferometry with NIST-traceable precision to 1.0 parts per million. Ensure your turning center delivers consistent dimensional accuracy across its full travel range.

Ballbar Performance Testing

Quickly evaluate overall machine health using wireless ballbar technology to identify backlash, servo mismatch, axis reversal errors, and squareness issues. Get a complete snapshot of your turning center's circular interpolation accuracy and mechanical condition.

Machine Leveling Services

Detect and correct pitch and roll errors in machine beds and guideways using electronic leveling. Proper machine geometry is essential for maintaining consistent axis alignment and preventing accuracy drift in multi-axis turning operations.

Surface Plate Verification

Maintain inspection accuracy with expert surface plate leveling and flatness verification including Moody Plot analysis. Ensure your reference planes remain true as plates wear, protecting measurement reliability for turned part inspection and layout work.

Operator & Technician Training

Hands-on training for CNC turning machine operation, setup best practices, and understanding how machine calibration affects part quality. Empower your team to maximize machine capability, reduce errors, and improve efficiency with real-world application knowledge.

Technician performing laser calibration measurement on CNC turning center

Our Proven 5-Step Calibration Process

Initial Assessment & Machine Analysis

We begin with a thorough evaluation of your turning center's current condition, reviewing machine history, performance issues, and your specific accuracy requirements. This baseline assessment identifies potential problem areas and establishes testing priorities to address your most critical concerns first.

Comprehensive Measurement & Data Collection

Analysis & Root Cause Identification

Corrective Action & Adjustment

Documentation & Ongoing Support

Proven Performance

Trusted By Manufacturers

Join manufacturing leaders who rely on our calibration expertise to maintain precision turning operations.

"I have worked with Mr Sarkinen on a job in Portland He is a Highly Skilled, Knowledgable Professional. I would definitely recomend him for all your Machine Tool Calibration Metrics. Sincerely Curtis Page Naughtellis CNC Service"

fab c
fab c

"This guy knows his stuff. Would definately recommend! Friendly good people!"

Lucas Pukas
Lucas Pukas

"As plant manager at Triad, I am always looking for ways of testing and measuring the condition of our large machines. Our outside repair tech suggested that I have Sarkinen Calibrating run their Ball Bar Test on all of our machines to show if we had any critical wear issues..."

Mike Mills

"I have worked with Mr Sarkinen on a job in Portland He is a Highly Skilled, Knowledgable Professional. I would definitely recomend him for all your Machine Tool Calibration Metrics. Sincerely Curtis Page Naughtellis CNC Service"

fab c
fab c

"This guy knows his stuff. Would definately recommend! Friendly good people!"

Lucas Pukas
Lucas Pukas

"As plant manager at Triad, I am always looking for ways of testing and measuring the condition of our large machines. Our outside repair tech suggested that I have Sarkinen Calibrating run their Ball Bar Test on all of our machines to show if we had any critical wear issues..."

Mike Mills

"I have worked with Mr Sarkinen on a job in Portland He is a Highly Skilled, Knowledgable Professional. I would definitely recomend him for all your Machine Tool Calibration Metrics. Sincerely Curtis Page Naughtellis CNC Service"

fab c
fab c

"This guy knows his stuff. Would definately recommend! Friendly good people!"

Lucas Pukas
Lucas Pukas

"As plant manager at Triad, I am always looking for ways of testing and measuring the condition of our large machines. Our outside repair tech suggested that I have Sarkinen Calibrating run their Ball Bar Test on all of our machines to show if we had any critical wear issues..."

Mike Mills
The Sarkinen Difference

Why Choose Sarkinen Calibrating?

We deliver precision calibration services backed by real machining experience and NIST-traceable accuracy.

Local Expertise

Faster response times serving Portland OR and SW Washington with availability throughout the Pacific Northwest and beyond.

NIST Traceability

Every measurement traceable to NIST and International Standards with accuracy to 1.0 parts per million.

Machinist Perspective

Founded by a machine operator who understands production realities, not just equipment specifications and test procedures.

Minimal Downtime

Efficient service delivery designed for highly predictable operation with minimal disruption to your production schedule.

Meet Our Founder

Led by hands-on machining experience and calibration expertise.

Larry, Founder of Sarkinen Calibrating

Larry

Founder

Larry's journey from machine operator to calibration service founder gives him a unique perspective that goes far beyond equipment maintenance. Having operated CNC machines firsthand, he understands the real-world production challenges manufacturers face daily—the frustration of unexpected downtime, the cost of scrap from axis errors, and the pressure to maintain tight tolerances. This operator-level experience drives his approach to calibration: it's not just about verifying numbers, it's about delivering solutions that genuinely increase production quality and efficiency. Larry built Sarkinen Calibrating on the principle that precision calibration should eliminate problems before they disrupt operations, providing manufacturers with the confidence that their equipment will perform exactly as promised. His hands-on background means he approaches every calibration with practical insight into how machine accuracy directly impacts your production floor, helping you achieve highly predictable operation with minimal disruption.

Frequently Asked Questions

How often should CNC turning centers be calibrated?

Calibration frequency depends on usage intensity, part tolerance requirements, and machine age. High-volume production environments typically benefit from quarterly or semi-annual calibration, while lower-volume shops may calibrate annually. We recommend ballbar testing between full calibrations to monitor machine health trends.

What accuracy can I expect from multi-axis turning calibration?

How long does a complete turning center calibration take?

Can calibration fix accuracy problems on older CNC lathes?

Do you calibrate machines from all manufacturers?

What's included in the calibration report?

Should I calibrate a new turning center?

What service areas do you cover?

Have More Questions About Calibration?

Talk to our team about your specific turning center accuracy concerns and calibration needs.

Serving the Pacific Northwest

Fast, local calibration services for CNC turning operations throughout Portland, SW Washington, and surrounding regions.

Portland & SW WA

Primary Service Area

Extended Coverage

Service Availability

Faster Local Service

Average Response

Do We Service Your Facility?

Contact us to discuss your location and schedule calibration service for your turning centers.

Certified & Traceable

Awards and Recognition

NIST Traceability certification logo

NIST Traceability

All measurements traceable to NIST Standards

ISO International Standards certification logo

ISO Compliance

Measurements meet International Standards requirements

5-star customer rating badge

5-Star Rated

Perfect customer satisfaction rating on Google

Ready to Optimize Your Turning Accuracy?

Contact us today to schedule calibration service or discuss how we can help improve your CNC turning operations.

Contact Us Today

For immediate assistance, feel free to give us a direct call at (360) 907-3058.