Linear Calibration
Verify positioning accuracy, repeatability, straightness, and squareness across full axis travel using laser interferometry with NIST-traceable accuracy to 1.0 parts per million.
Maximize production quality and eliminate costly errors with professional CNC machine accuracy audits. Sarkinen Calibrating delivers NIST-traceable measurements to 1.0 parts per million, verifying positioning accuracy, repeatability, and geometric alignment across all axes. Our comprehensive diagnostic approach identifies hidden issues before they impact part quality, helping manufacturers maintain tight tolerances and reduce unexpected downtime.
Comprehensive diagnostic testing using advanced measurement systems to verify machine performance and identify accuracy issues.
Verify positioning accuracy, repeatability, straightness, and squareness across full axis travel using laser interferometry with NIST-traceable accuracy to 1.0 parts per million.
Quick circularity evaluation using Renishaw QC20-W Ballbar to identify backlash, servo mismatch, reversal errors, and squareness problems affecting machine health.
Measure angular positioning accuracy, repeatability, and alignment of rotary tables and trunnions using Renishaw's Rotary Calibration System.
Detect pitch and roll errors in machine beds, guideways, and large structures using Mahr-Federal's Electronic Level for proper axis geometry.
Expert leveling and flatness measurement using Moody Plot to ensure surface plates provide accurate reference planes for inspection and layout work.
Hands-on instruction for laser interferometer, ballbar systems, and machine operation best practices tailored to your equipment and skill level.
We review your machine specifications, production requirements, and accuracy concerns to determine the appropriate testing methods. Our team identifies which measurements—linear, rotary, or circularity—will provide the most valuable diagnostic information for your specific equipment and tolerance requirements.
Helping precision manufacturers maintain accuracy and eliminate unexpected downtime.
"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..."
Founded by a former machine operator who understands production operations from the inside.
NIST-traceable measurements to 1.0 parts per million—accuracy that exceeds the required 10:1 calibration ratio.
Serving Portland OR and SW Washington with faster response times than out-of-area providers, minimizing your downtime.
Founded by Larry, a former machine operator, we deliver solutions that increase production quality and efficiency.
Beyond equipment maintenance—we evaluate entire machining operations to identify issues before they become production problems.
Led by experienced professionals who understand machining operations.
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.
CNC machine tolerance varies by machine type, size, and application, but most precision machines are designed to hold tolerances of ±0.0001" to ±0.001" (0.0025mm to 0.025mm). However, actual achievable tolerance depends on machine condition, calibration, thermal stability, and wear. Regular accuracy audits verify that machines continue to meet their specified tolerances throughout their service life.
Our calibration experts are ready to discuss your specific equipment and accuracy requirements.
All measurements traceable to NIST standards
Highest customer satisfaction on Google
Certified in Renishaw measurement systems
Get NIST-traceable measurements and detailed diagnostic reporting. Fill out the form below and our team will contact you within one business day to discuss your equipment and schedule a convenient audit time.
For immediate assistance, feel free to give us a direct call at (360) 907-3058.
For immediate assistance, feel free to give us a direct call at (360) 907-3058.