Why a rotary stage can help you in a CMM or CT machine. What are the key parameters for a rotary stage to be a good additiopn in your machine?

1. Slide 1
LAB Motion Systems is a
Worldwide Leader in Precision & Reliability
Summer 2021
Do you need a reliable partner for precise motion components?​
Do you want to achieve repeatable results?​
Is product reliability key?
V0.5

2. • Spin-off University of Leuven, Belgium, °2005
• Specialised in ultra precision air and ball
bearing rotary and linear stages
• X-axes, XY-stages and XY-gantries
• Custom-made motion systems for OEM and
research industry with up to 13 axes or more
• 30 employees
CONFIDENTIAL
Slide 2
Down to
< 20 nm
error
motion
Up to
>800kg
load
capacity

3. Slide 3
In-house
developed motor
technology
Air and ball
bearing
technology
Simulation and
modeling
Production
technology
Driver
technology
The best
motion
systems

4. • Excellent speed and positional stability
• Low error motion
• Error mapping possible to decrease measurement errors
• Low static vibration on sensor level
• High dynamic movements (up to 2800 °/s²), settling time < 100 msec
• Suited for industrial production environments,
• Ruggedized design – shopfloor compatible
• Safety options: redundant sensoring, safety brake, limited travel range etc.
• Versatile and robust design for both small, light and large, heavy loads
Slide 4

5. Slide 5
• Use case: Multi axes motion in a CT machine: horizontal and perpendicular
to the beam, vertical and rotation (4 axes)
• Goal: 24/7 in-line QC
• Which product: customized ball bearing rotation stage with low error
motion and XYZ movements by ball screw driven linear ball bearing stage
Benefits:
➢ Rotation stage
➢ Keeping micrometer level precision < 1 µm (typ. 0,4 µm)
➢ High angular resolution up to 0,01 arcsec and accuracy up to 1 arcsec
➢ Disturbance free axial flux direct drive motor
➢ Linear stages
➢ Precision ball screw driven linear motion axes suitable for a wide range of inertial loading
➢ Encoder along the motion axes (direct position feedback)
➢ Very stable positioning (to be compatible with large magnifications)

6. • In-house OQC for every individual system
• Measurement report included
Slide 6

7. Slide 7
• Use case: providing the extra rotary axes in the CMM system (e.g. for measuring axisymmetric parts or
specific objects with demanding measurement strategy such as turbine blades)
• Goal: 24/7 operation, safe and precise
• Which product: customized ball or air bearing stage with lowest error motion
Benefits:
➢ Keeping micrometer level precision
➢ < 1 µm (typ. 0,4 µm) for ball bearings or
➢ < 0,1 µm for air bearing
➢ High angular resolution up to 0,01 arcsec and accuracy up to 1 arcsec
➢ Powerful direct drive torque motor
➢ Can be used in horizontal or vertical axis config
➢ Robust design and stable operation
➢ Additional safety due to redundant position sensor system
➢ Flexible integration: customized interfaces and top plate / chuck design
➢ High volume product ➔ TCO optimization: from design to delivery and after sales support

8. • Use case: Automated inspection of automotive components
• Goal: 24/7 in-line QC
• Which product: customized ball bearing rotation stage with low error
motion
Slide 8
Benefits:
➢ Keeping micrometer level precision < 1 µm (typ. 0,4 µm)
➢ High angular resolution up to 0,01 arcsec
and accuracy up to 1 arcsec
➢ Disturbance free axial flux direct drive motor
➢ Low vibration levels
➢ Ideally suited for continuous operation in harsh environments
(shop floor compatible)

9. Radial error motion – separated into
synchronous and asynchronous
contribution
Find our ball bearing stages on our site
Slide 9

10. • Use case: Measuring machine for crankshaft inspection (automotive)
• Goal: Enhancing metrology performance, improved reliability and robustness
• Which product: newly developed air bearing rotation stage with optimized stiffness
characteristics and excellent error motion
Slide 10
Benefits:
➢ Frictionless bearing with high load carrying capacity
5 Nm tilt, 500 N radial, 850 N axial
< 0,1 µm radial error motion
< 0,3 µm radial runout at cone
➢ Best in class speed stability thanks to
zero cogging motor
➢ High-resolution encoder

11. • Radial error motion – capacitively measured with
spherical artefact
• Read more about this product on our site.
Slide 11

12. Benefits:
➢ 0,15 µm straightness of Z motion over the full
stroke
➢ Smooth motion due to direct drive motor and
gravity compensation
➢ <0,1 µm error motion
➢ Full measurement reporting
• Use case: Automatic inspection of conrods for off-highway equipment
• Goal: measuring diameter, cylindricity and axis distance between big
end and small end
• Which products: custom air bearing Z stage (200 mm travel) and
RT100S (motion controllers included)
Slide 12

13. • Ball bearing rotary stage
• Robust design
• Heavy loads
• Low error motion
Slide 13

14. Slide 14
Angle of the stage in degree.
At 0 the stage is at the homing
position
Scale polar plot in µm
Least square circle of the
error in the polar plot
Radial error motion is
defined as the
difference between
the inner and outer
circle LSC (least
square circle).
217,9 nm

15. • Based on your key specifications
• The optimal match between performance, TCO
and service level
• Supporting your supply chain with in-house
stock or semi finished parts at our facility
• Fast turn around time for service and repairs
• Dedicated training to your staff
• Third line support from our team
• Check it out on our site
Slide 15

16. • Get in touch to learn more how LAB Motion Systems can help
you
Slide 16
• Koen Schoofs
• Key Account Manager
• +32 478 45 13 16
• Koen.Schoofs@labmotionsystems.com
• https://www.linkedin.com/in/schoofskoen/
• www.labmotionsystems.com