Linear Axis Calibration
Laser interferometer verification of positioning accuracy, repeatability, straightness, and squareness across full axis travel with NIST-traceable measurements to 1.0 part per million precision.
Precision CNC axis calibration services ensure your machine tools deliver consistent accuracy and minimize unexpected downtime. Using Renishaw laser interferometry with NIST-traceable measurements accurate to 1.0 part per million, we verify positioning, repeatability, straightness, and squareness across all axes. Our calibration services identify hidden wear, alignment errors, and servo issues before they impact production quality, helping Portland OR and SW Washington manufacturers maintain tight tolerances and maximize equipment capability.
Comprehensive calibration solutions for linear axes, rotary tables, machine geometry, and performance verification using NIST-traceable laser measurement systems.
Laser interferometer verification of positioning accuracy, repeatability, straightness, and squareness across full axis travel with NIST-traceable measurements to 1.0 part per million precision.
Angular positioning accuracy and repeatability measurement using Renishaw's Rotary Calibration System to verify rotary tables, trunnions, and multi-axis machine alignment for precise machining operations.
Rapid machine health assessment using Renishaw QC20-W Ballbar to identify backlash, servo mismatch, axis reversal errors, squareness problems, and critical wear affecting circularity and overall accuracy.
Electronic level measurements detect pitch and roll errors in machine beds, guideways, and large structures, identifying alignment issues from installation, relocation, or foundation movement.
Flatness measurement and leveling verification using Moody Plot analysis to maintain accurate reference planes for inspection work and ensure consistent measurement reliability in production environments.
Hands-on training for Renishaw laser interferometer and ballbar systems, teaching proper setup, data collection, result interpretation, and troubleshooting techniques for maintenance teams and quality engineers.
Pre-Calibration Assessment & Machine Inspection
We begin with a thorough evaluation of your CNC machine's current condition, reviewing maintenance history, operational concerns, and specific accuracy requirements. This assessment identifies priority axes and potential trouble areas that need focused attention during calibration.
Precision Measurement & Data Collection
Deviation Analysis & Root Cause Identification
Corrective Adjustments & Compensation Implementation
Verification & Documentation Delivery
Portland-area manufacturers trust Sarkinen Calibrating to keep their CNC machines accurate and production running smoothly.
"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!"
Founded by a former machine operator who understands production realities, we deliver precision calibration solutions that go beyond equipment maintenance.
Faster response times serving Portland OR and SW Washington with comprehensive on-site calibration services.
Measurements accurate to 1.0 part per million, fully traceable to NIST and International Standards.
Founded by a machine operator who focuses on production quality, efficiency, and minimizing unexpected downtime.
Beyond calibration—we identify errors before they become problems and verify machines deliver as promised.
Experience built from the shop floor up.
Founder
Larry's journey into precision calibration began on the machine shop floor, where he worked as a CNC operator experiencing firsthand the production challenges caused by equipment inaccuracy. That hands-on experience gave him a unique perspective: calibration isn't just about maintaining equipment—it's about solving real production problems and helping manufacturers deliver consistent quality. This operator-first mindset shaped his approach when he founded Sarkinen Calibrating, building a service focused on increasing production quality and efficiency rather than simply checking boxes. Larry understands that unexpected downtime and accuracy problems directly impact a shop's bottom line and reputation. His technical expertise with advanced measurement systems like Renishaw laser interferometry is matched by his practical understanding of machining operations, allowing him to provide calibration solutions that truly support production goals. Today, Larry continues to serve Portland OR and SW Washington manufacturers with the same commitment to accuracy and minimal disruption that defined his early days on the shop floor.
What are the 5 points of calibration?
The five critical points of CNC axis calibration include: (1) Positioning accuracy—how closely the machine reaches commanded positions; (2) Repeatability—consistency returning to the same position multiple times; (3) Straightness—deviation from a straight line during axis travel; (4) Squareness—perpendicularity between axes; and (5) Angular accuracy—for rotary axes, how precisely the angle matches the commanded rotation. These measurements comprehensively evaluate machine geometric accuracy.
How often should CNC axes be calibrated?
What causes CNC axis accuracy to degrade over time?
How long does CNC axis calibration take?
Can calibration fix accuracy problems on older CNC machines?
What equipment do you use for CNC axis calibration?
Do you provide calibration certificates?
What's the difference between ballbar testing and laser calibration?
Talk to Larry about your specific machine accuracy needs and get expert calibration guidance.
Fast, local response for CNC calibration services throughout the Portland OR and SW Washington manufacturing region.
Portland Region
Primary Service Area
Faster Local Service
Response Time
5.0 Stars
Customer Rating
Contact us to confirm service availability and schedule your CNC axis calibration.
All calibrations traceable to national standards
Measurements meet global calibration standards
Trusted by Portland-area manufacturers
Contact Sarkinen Calibrating for NIST-traceable axis calibration services. We'll respond quickly to discuss your calibration needs and schedule convenient on-site service.
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