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.
Comprehensive calibration solutions designed to maximize accuracy, repeatability, and performance of your CNC turning equipment.
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.
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.
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.
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.
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.
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.
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
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"
"This guy knows his stuff. Would definately recommend! Friendly good people!"
"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..."
"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"
"This guy knows his stuff. Would definately recommend! Friendly good people!"
"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..."
"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"
"This guy knows his stuff. Would definately recommend! Friendly good people!"
"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..."
We deliver precision calibration services backed by real machining experience and NIST-traceable accuracy.
Faster response times serving Portland OR and SW Washington with availability throughout the Pacific Northwest and beyond.
Every measurement traceable to NIST and International Standards with accuracy to 1.0 parts per million.
Founded by a machine operator who understands production realities, not just equipment specifications and test procedures.
Efficient service delivery designed for highly predictable operation with minimal disruption to your production schedule.
Led by hands-on machining experience and calibration expertise.
Founder
Larry's journey into precision calibration began on the shop floor as a machine operator, where he experienced firsthand the frustrations of unexpected downtime and accuracy issues. That practical foundation shaped his entire approach to calibration services—viewing each job not as routine equipment maintenance, but as an opportunity to solve real production challenges and improve manufacturing outcomes. After years of operating CNC equipment, Larry built Sarkinen Calibrating on the principle that effective calibration requires understanding both the technical specifications and the operational realities manufacturers face every day. His unique perspective allows him to quickly identify problems that impact production quality and efficiency, translating complex measurement data into actionable solutions that keep machines running accurately. Today, Larry continues to bring that operator's mindset to every calibration project, helping manufacturers throughout Portland OR and SW Washington eliminate unexpected downtime and maintain the precision their customers demand.
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?
Talk to our team about your specific turning center accuracy concerns and calibration needs.
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
Contact us to discuss your location and schedule calibration service for your turning centers.
All measurements traceable to NIST Standards
Measurements meet International Standards requirements
Perfect customer satisfaction rating on Google
Contact us today to schedule calibration service or discuss how we can help improve your CNC turning operations.
For immediate assistance, feel free to give us a direct call at (360) 907-3058 You can also send us a quick email at
For immediate assistance, feel free to give us a direct call at (360) 907-3058 You can also send us a quick email at