Ensure your CNC machines deliver consistent accuracy with professional ballbar testing and comprehensive performance verification. Sarkinen Calibrating uses Renishaw's QC20-W Ballbar system to quickly identify critical wear issues like backlash, servo mismatch, and axis errors—helping Portland and SW Washington manufacturers minimize unexpected downtime, validate recent service work, and maintain the precision their production quality depends on.
Comprehensive calibration and testing solutions to maintain accuracy, minimize downtime, and maximize machine capability.
Fast, wireless ballbar testing evaluates true circularity and identifies critical wear issues including backlash, servo mismatch, axis reversal errors, and squareness problems. Provides a comprehensive snapshot of overall machine health.
Precision laser interferometer verification measuring positioning accuracy, repeatability, straightness, and squareness across full axis travel. Accuracy to 1.0 part per million with full NIST traceability.
Measures angular positioning accuracy, repeatability, and alignment of rotary tables and trunnions using Renishaw's Rotary Calibration System. Identifies mechanical wear, setup errors, or encoder issues affecting multi-axis machining.
Precision electronic level testing identifies pitch and roll errors in machine beds, guideways, and large structures. Detects alignment issues from installation, relocation, or foundation movement affecting axis geometry.
Expert leveling and flatness verification including Moody Plot measurement ensures surface plates continue providing accurate reference planes. Maintains consistency in inspection and layout work as plates wear over time.
Hands-on training for CAM software, CNC operation, laser interferometer use, and ballbar testing. Tailored instruction helps operators, programmers, and technicians maximize machine capability and perform in-house diagnostics.
Ballbar testing with Renishaw's QC20-W system delivers the quickest, most effective snapshot of CNC machine health available to Portland-area manufacturers. The wireless setup means minimal disruption to your production schedule while identifying the critical wear patterns that lead to part rejection and unplanned downtime. Whether you're validating recent service work, troubleshooting accuracy problems, or planning preventive maintenance, ballbar testing provides repeatable, reliable results that give you confidence in your machine's capability—backed by measurements traceable to NIST standards.
Manufacturing facilities across Portland and SW Washington rely on our calibration expertise to maintain production quality.
"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!"
Local expertise with NIST-traceable accuracy and a machine operator's understanding of production reality.
Faster response times serving Portland OR and SW Washington than out-of-area providers—minimizing your downtime.
Founded by a former machine operator who understands production operations, not just equipment specifications.
All measurements traceable to NIST and International Standards with accuracy to 1.0 parts per million.
Complete calibration capabilities beyond basic maintenance—from ballbar to laser interferometry to electronic leveling.
Local experts who understand precision manufacturing.
Founder
Larry's path to founding Sarkinen Calibrating began on the shop floor as a machine operator, where he experienced firsthand the frustration of unexpected downtime and the critical importance of machine accuracy. That hands-on background shaped his entire approach to calibration—he doesn't just maintain equipment, he solves real production problems. Larry built Sarkinen Calibrating on the principle that calibration should be more than a maintenance checkbox. It should increase production quality, boost efficiency, and give manufacturers in Portland and SW Washington confidence that their machines can deliver as promised, every time. His operator's perspective means he sees calibration through the lens of production reality, understanding how measurement accuracy directly impacts part quality, throughput, and profitability. Under Larry's leadership, Sarkinen Calibrating has grown into the go-to local provider for NIST-traceable precision calibration, delivering faster response times and comprehensive solutions that eliminate the uncertainty and unexpected downtime that plague manufacturing operations.
Local calibration service with faster response times than out-of-area providers—minimizing your machine downtime.
Portland Region
Primary Service Area
Same/Next Day
Response Time
5.0 Stars
Customer Rating
Contact us to confirm service availability and schedule your ballbar testing appointment.
All measurements traceable to NIST standards
Measurements traceable to International Standards
Trusted by Portland manufacturers
Get a fast, accurate assessment of your machine's condition with professional ballbar testing. Contact us for scheduling or to discuss your calibration needs.
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