Keep your CNC machines running at peak accuracy with structured preventive maintenance calibration programs. Sarkinen Calibrating delivers NIST-traceable measurements and systematic monitoring that catches wear and drift before they impact production quality. Our programs minimize unexpected downtime, reduce scrap rates, and ensure your equipment consistently delivers the precision your customers expect—giving you confidence in every part that leaves your shop.
Comprehensive calibration solutions that monitor CNC accuracy, identify wear patterns, and keep your machines performing to specification between production runs.
Verify positioning accuracy, repeatability, straightness, and squareness across full axis travel using laser interferometry accurate to 1.0 parts per million. NIST-traceable measurements identify alignment errors and mechanical wear before they affect part quality.
Quick machine health assessment using Renishaw's QC20-W Ballbar to evaluate circularity and identify backlash, servo mismatch, axis reversal errors, and squareness problems. Ideal for validating service work and troubleshooting accuracy issues.
Measure angular positioning accuracy, repeatability, and alignment of rotary tables and trunnions using Renishaw's Rotary Calibration System. Ensures multi-axis machining accuracy and identifies encoder or mechanical issues.
Maintain reference plane accuracy through expert leveling and flatness verification including Moody Plot analysis. Prevents measurement reliability issues caused by surface plate wear in inspection and layout operations.
Detect pitch and roll errors in machine beds, guideways, and structures using Mahr-Federal's Electronic Level. Identifies alignment issues from installation, relocation, or foundation movement that affect axis geometry.
Hands-on instruction for operating laser interferometers, ballbar systems, and understanding machine accuracy data. Empowers your team to perform in-house diagnostics and make informed maintenance decisions.
Baseline Accuracy Assessment
We start with comprehensive measurement of all critical machine axes using laser interferometry and ballbar testing to establish your equipment's current performance profile. This baseline becomes the reference point for tracking accuracy changes over time and identifying gradual wear patterns before they impact production.
Customized Maintenance Schedule
Scheduled Verification & Trending
Proactive Reporting & Recommendations
Continuous Program Optimization
Precision manufacturers across Portland and SW Washington rely on our calibration programs to maintain accuracy.
"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..."
"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!"
Experience the difference of working with calibration specialists who understand production operations from the machine operator's perspective.
Portland and SW Washington service with faster response times than out-of-area providers, minimizing production delays.
Measurements to 1.0 parts per million, exceeding the 10:1 calibration ratio and fully traceable to national standards.
Founded by a former machine operator who understands real production challenges, not just equipment specifications.
Highly predictable service that works around your production schedule, eliminating unexpected downtime and correction delays.
Calibration expertise built on real machining experience.
Founder
Larry's journey into precision calibration began on the shop floor as a machine operator, where he experienced firsthand how equipment accuracy directly impacts production quality and efficiency. That operator-level perspective shaped his approach to calibration—it's never been just about maintaining equipment specifications. For Larry, calibration is about understanding the complete machining operation and providing solutions that genuinely improve production outcomes. He built Sarkinen Calibrating on the principle that calibration providers should think like production professionals, not just technicians. This philosophy means looking beyond measurement data to understand how accuracy affects your specific operations, helping identify issues before they become problems, and structuring maintenance programs that truly minimize disruption. Larry's operator background gives him insight into the real-world challenges manufacturers face—tight tolerances, demanding delivery schedules, and the constant pressure to eliminate scrap and rework. That's why Sarkinen Calibrating focuses on preventive solutions that keep machines running predictably and accurately, giving you confidence that your equipment will deliver as promised, every time.
What is calibration and preventive maintenance?
Calibration is the process of verifying and adjusting equipment accuracy against known standards, while preventive maintenance involves systematic checks and corrections before problems occur. In CNC calibration programs, we combine both—regularly measuring machine accuracy using NIST-traceable methods and identifying wear patterns early so you can schedule corrections during planned downtime rather than facing unexpected failures.
What are the 4 types of preventive maintenance?
What are the 5 points of calibration?
How often should CNC machines be calibrated?
What's included in a typical calibration program?
Can calibration help reduce scrap and rework?
How long does calibration testing take?
Do you serve customers outside Portland and SW Washington?
Talk to our team about developing a preventive maintenance calibration program tailored to your equipment and production needs.
Serving precision manufacturers across Portland, SW Washington, and the Pacific Northwest with fast-response calibration programs.
Portland & SW WA
Primary Service Area
Same Week
Response Time
5.0 Stars
Customer Rating
Contact us to discuss calibration programs for your location and equipment—we serve Portland, SW Washington, and beyond.
All measurements traceable to national standards
Exceptional customer service and technical expertise
Measurements to 1.0 parts per million
Contact Sarkinen Calibrating to discuss a customized calibration program for your CNC equipment. We'll help you develop a maintenance schedule that keeps machines accurate and production predictable.
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