Achieve NIST-traceable precision to 1.0 parts per million with Renishaw Laser Interferometer technology. Sarkinen Calibrating ensures your CNC machines maintain accuracy throughout the Pacific Northwest's demanding production environments, where temperature variations and continuous operation can compromise tolerances. Our calibration services eliminate unexpected downtime, verify positioning accuracy across full axis travel, and provide the proof your customers need that your machines deliver as promised—every time.
Comprehensive precision calibration solutions for CNC machines, rotary axes, surface plates, and production equipment using advanced Renishaw measurement systems.
Verify positioning accuracy, repeatability, straightness, and squareness across full axis travel using Renishaw Laser Interferometer with accuracy to 1.0 parts per million. NIST-traceable measurements identify shipping damage and installation errors before warranty expires.
Measure angular positioning accuracy, repeatability, and alignment of rotary tables and trunnions using Renishaw's Rotary Calibration System. Identifies mechanical wear, encoder issues, and setup errors affecting multi-axis machining performance.
Evaluate true circularity and identify backlash, servo mismatch, axis reversal errors, and squareness problems using Renishaw QC20-W Ballbar. Provides fast machine health snapshot with wireless setup for minimal downtime.
Detect pitch and roll errors in machine beds, guideways, and large structures using Mahr-Federal Electronic Level. Identifies alignment issues from installation, relocation, or foundation movement affecting axis geometry.
Maintain reference plane accuracy through expert leveling and flatness verification including Moody Plot analysis. Monitors wear patterns that impact part accuracy and measurement reliability in production environments.
Hands-on instruction for Renishaw Laser Interferometer and QC20-W Ballbar systems, covering setup, data collection, result interpretation, and troubleshooting. Ideal for maintenance teams performing in-house diagnostics.
Pre-Calibration Assessment and Equipment Setup
We begin with a thorough evaluation of your machine's service history, recent performance issues, and production requirements. Our technician arrives with factory-calibrated Renishaw equipment and establishes environmental baselines, accounting for Portland-area temperature and humidity conditions that can affect measurement stability. This preparation ensures accurate data collection and minimizes production disruption.
Linear and Angular Measurement Execution
Ballbar Circularity Testing
Data Analysis and NIST-Traceable Documentation
Recommendations and Corrective Action Support
Manufacturing facilities throughout Portland OR and SW Washington rely on our NIST-traceable calibration services to maintain production quality.
"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"
"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..."
"This guy knows his stuff. Would definately recommend! Friendly good people!"
"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"
"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..."
"This guy knows his stuff. Would definately recommend! Friendly good people!"
"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"
"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..."
"This guy knows his stuff. Would definately recommend! Friendly good people!"
Built by a former machine operator who understands what precision manufacturing demands.
Faster response times than out-of-area providers throughout Portland OR and SW Washington with comprehensive regional coverage extending to Oregon, Northern California, and Idaho.
Measurements traceable to NIST and International Standards with accuracy to 1.0 parts per million, exceeding the 10:1 ratio required for proper calibration.
Founded by a machine operator who understands production realities, delivering solutions that increase efficiency while maintaining accuracy with minimal disruption.
Beyond equipment maintenance—we analyze machining operations holistically to eliminate unexpected downtime and verify machines deliver as promised every time.
Led by a founder who started on the shop floor.
Founder
Larry's journey from machine operator to calibration service founder gives Sarkinen Calibrating a unique perspective in the precision measurement industry. Unlike technicians who only understand calibration theory, Larry witnessed firsthand how machine accuracy directly impacts production quality, efficiency, and profitability on the shop floor. This experience drives his approach: calibration isn't just about hitting numerical targets—it's about understanding the real-world machining challenges his customers face every day. Larry built Sarkinen Calibrating to provide solutions that actually work in production environments, combining technical precision with practical operational knowledge. His operator background means he speaks the same language as the machinists, programmers, and production managers who depend on accurate equipment. Today, Larry continues to approach every calibration project by asking how the service will tangibly improve the customer's manufacturing operation, minimize disruption, and deliver predictable, reliable results that keep production running smoothly.
What accuracy level does laser interferometer calibration achieve?
Our Renishaw Laser Interferometer calibration achieves accuracy to 1.0 parts per million (one millionth of an inch per inch), well exceeding the 10:1 ratio required for proper calibration. All measurements are fully traceable to NIST and International Standards, providing documentation acceptable to customers and auditors worldwide.
How long does machine tool calibration take?
How often should CNC machines be calibrated?
What problems does laser interferometer calibration identify?
Do you provide calibration outside Portland OR and SW Washington?
What documentation do you provide after calibration?
Can calibration data help with warranty claims on new machines?
What is ballbar testing and why is it important?
Talk to Larry about your CNC accuracy challenges and discover how NIST-traceable calibration can eliminate unexpected downtime.
Local service throughout Portland OR and SW Washington with regional coverage extending across Oregon, Northern California, and Idaho.
Portland & SW Washington
Primary Service Area
OR, N. California, ID
Regional Coverage
5.0 Stars
Customer Rating
Contact us to discuss your calibration needs and schedule service with faster response times than distant providers.
All measurements traceable to NIST standards
Measurements meet International Standards requirements
Perfect customer satisfaction rating
Contact Sarkinen Calibrating to schedule precision laser interferometer calibration. We'll respond quickly to discuss your machine accuracy needs and production requirements.
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