Category Archives: Stage – Linear & Rotary Positioning
Motion Control – Case Study: Precision Ground Ball Screw Drives Universal Pipetting Module!
Motion Control Case Study – Pipetting
COVID-19 Testing / Sampling Applications
Reaching New Levels of Speed, Lifetime, and Force Sensitivity
Woburn, MA –Motion Control Components Ball Screws – Case Study –
Situation:
In the area of automated laboratory equipment, servo-controlled pipetting modules are a key component of high-throughput systems. A major, global OEM had been using an off-the-shelf linear actuator to drive the pipette. This actuator had a limited range of capability in terms of speed, positioning accuracy, and force sensitivity. Although it met the minimum technical requirements and was cost-effective, engineers soon were asked to push performance to the next level.
Challenge:
The company decided to develop a next-generation system. Throughput was essential, as it wanted to target the largest hospitals and laboratories handling tens of thousands of samples annually. The pipetting module also needed to have enhanced flexibility to support a greater variety of operations. It should allow for a wider range of speeds and be highly accurate in both positioning and bottom-finding. Engineers were also tasked with achieving a 10-year lifetime with little or no maintenance. This high lifetime was critical because their business model included free field service. To meet these new requirements, the actuator would have to be redesigned. In particular, the bearing configuration did not support the required accuracy and sensitivity. The supplier was unwilling to modify its design. Company engineers realized that they would have to design a custom actuator.
Resolution:
They came to Steinmeyer for a precision ground ball screw. They knew that Steinmeyer had world-class quality and a very wide selection of miniature screw sizes. For this project, they were able to consider shaft diameters of 5mm or 6mm, with pitch down to 0.5mm! They selected a 6mm screw to meet the challenge. Company engineers conducted extensive performance testing on the first prototype quantities. They put the new module through an exhaustive regimen of motion, and measured positioning, force sensitivity, friction torque, motor current, and other parameters. They verified that their module design met all of the new performance requirements. The company has since achieved FDA approval for the new system and formally launched commercial sales.
Future Plans:
Noise minimization is important for laboratory equipment. The next generation pipetting module will look to ensure the quietest possible operation. The OEM will be evaluating our proprietary super-finishing process called optiSLITE. This technology removes the largest irregularities left over from thread grinding of the shaft. The resulting surface yields a noticeably smoother and quieter operation.
To Download a PDF of this Case Study Go To – https://ballscrew-tech.com/2019/05/17/case-study-pipetting-module-driven-by-ground-ball-screw/
About Steinmeyer
Steinmeyer is the world’s longest continuously-operating manufacturer of commercial ball screws. In the realm of linear motion control, our company has become synonymous with precision, innovation, and exacting standards of quality.
Steinmeyer’s extensive product line is used widely in drive systems for industrial machines as well as precision positioning in optical instruments, medical devices, and other mechatronic applications.
Contact Steinmeyer for further information on their extensive product portfolio:
781-273-6220
Visit Steinmeyer.com
Steinmeyer Ball Screw Resource Center
Other Interesting Case Studies from Steinmeyer:
For the Case Study “Custom Linear Modules for Lithography Masking” CLICK HERE
For the Case Study “Wearable Pumps” CLICK HERE
See this and other Motion Control Ball Screws, Stages, Technology Notes, Custom Components from Steinmeyer featured on:
http://MotionControlBlogger.com
http://MotionControlBuyersGuide.com
http://Catalogs-MotionControl.com
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Motion Control – Optimal Engineering Systems, Inc. (OES) Introduces New, Motorized, High Resolution Pan-Tilt Stages!
Motion Control – Pan-Tilt Stage
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Van Nuys, CA – — Motion Control – High Resolution, Motorized, Pan-Tilt Stages have been added to the extensive line of OES (Optimal Engineering Systems, Inc.) motion control products. These motorized Pan-Tilt Stages are available in two sizes. The PT60-1 Pan-Tilt Stage is a combination of two 60 mm (2.362 in.) rotary stages and the PT100-1 is a combination of two 100 mm (3.937 in.) rotary stages, set at a 90O angle to each other. The rotary stages of each Pan-Tilt stage features a high repeatability of 0.005O (18 arc-sec), a positional accuracy of 0.005O (18 arc-sec), and a resolution of 0.001O = 3.6” (10 Micro-steps per Step Motor Driver in use). These Pan (horizontal table)-Tilt (vertical table) Stages are deal for: Scanning, testing, inspection, assembly, positioning, laser and micro machining, pointing optics and cameras, and other applications.
The pan and tilt axes on both stages have precision V-grove and crossed roller travel guides and are driven by a worm gear with just of 0.005O (18 arc-sec) of backlash. These compact, easily integrated Pan-Tilt stages weigh just 2.0 kg (4.4 lbs) for the PT60-1 and 4.4 kg (9.75 lbs) for the PT100-1 and load capacities are 10 kg (22 lbs) and 20 kg (44 lbs) respectively).
Each axis is driven by a standard bi-directional stepper motor with a knob for manual adjustments and each rotary axis has a vernier scale for setup. The knob on each motor can be replaced with an optional encoder for position verification. Travel speed of each axis is 12O per second with a stepper motor or for higher speeds and closed loop operation, servo motors are available. Electrical connections are made using 9 pin DB-9 connectors.
The PT60-1 and the PT100-1 Pan-Tilt Stages can be ordered as complete plug-and-play systems with a multi-axis controller, joystick, trackball or keypad.
About OES – Optimal Engineering Systems, Inc. (OES) is a manufacturer of motion control products including: Stepper motor controllers and drivers, solenoid electronics, and positioning stages and slides. Applications include: Animation, automated assembly systems, automation, CNC machines, flight simulation, inspection systems, linear and rotary stages, machine tools, medical devices, motion control camera boom systems, optical comparators, CMMs, pan-tilt gimbals, PCB assembly & inspection, pick-and-place, positioning stages, robotics, scanners, security cameras, telescope drive mechanisms, time-lapse photography and winders.
Some of the industries OES serves are: Aerospace, Astronomy, Chemical, Communications, Educational Institutes, University, Colleges, Government Agencies, National Labs, Manufacturing, Medical, Metrology, Military, Motion Control, Museum, News Agencies, Semiconductor and Test Equipment. Optimal Engineering Systems, Inc’s. competitive advantage is its state-of-the-art in-house manufacturing facility in North America enabling OES to supply clients with custom designed orders or high volume just-in-time deliveries globally.
For additional information, contact sales team at: OES, 6901 Woodley Ave.; Van Nuys, CA 91406; Telephone: 888-777-1826 or +1 818-222-9200, FAX +1 818-436-0446 or E-Mail: sales@oesincorp.com or visit the website at http://www.oesincorp.com
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Motion Control – XY-Theta Alignment Stage Featuring High Resolution and High Repeatability Is Available from OES!
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Van Nuys, CA – — Motion Control Components – Alignment Stage – The XYR-03-01 Alignment Stage from Optimal Engineering Systems, Inc. (OES) is a high resolution, high repeatability XY-Theta stage for such applications as: Angular glass cutting and grinding, wafer alignment, semiconductor handling, laser cutting and drilling. The linear resolution of the X and Y axis is 5µ (non-micro-step) or 0.125µ (20 micro-steps per step motor driver in use), the repeatability is 1.5µ, and positional accuracy is 5µ. The 1 mm per-turn lead screws and preloaded V-groove and crossed roller bearings add to the high precision and stiffness of the XYR-03-01 alignment stage. The linear travel of the X and Y axes is 50 mm x 50 mm.
The 100 mm diameter theta stage is driven by a precision 90:1 ratio worm gear. The resolution of the theta stage is 0.02O (non Micro-step) or 0.001O (20 Micro-steps per step motor driver in use). Repeatability is 0.005O, positional Accuracy is 0.01O and backlash is 0.005O.
Two-phase stepper motors are standard. The knob for manual adjustments of each axis can be replaced with an incremental encoder for position verification or closed loop operation. These black anodized Aluminum XY-Theta stages are easy to integrate into new or existing systems. Compatible Motion Controllers are available from OES and the XYR-03-01 Alignment Stage can also be ordered as a complete plug-and-play system.
About OES Optimal Engineering Systems, Inc. (OES) is a manufacturer of motion control products including: Stepper motor controllers and drivers, solenoid electronics, and positioning stages and slides. Applications include: Animation, automated assembly systems, automation, CNC machines, flight simulation, inspection systems, linear and rotary stages, machine tools, medical devices, motion control camera boom systems, optical comparators, CMMs, pan-tilt gimbals, PCB assembly & inspection, pick-and-place, positioning stages, robotics, scanners, security cameras, telescope drive mechanisms, time-lapse photography and winders
Some of the industries OES serves are: Aerospace, Astronomy, Chemical, Communications, Educational Institutes, University, Colleges, Government Agencies, National Labs, Manufacturing, Medical, Metrology, Military, Motion Control, Museum, News Agencies, Semiconductor and Test Equipment. Optimal Engineering Systems, Inc’s. competitive advantage is its state-of-the-art in-house manufacturing facility in North America enabling OES to supply clients with custom designed orders or high volume just-in-time deliveries globally.
For additional information contact Customer Service at Optimal Engineering Systems, Inc. (OES) , 6901 Woodley Ave, Van Nuys, CA 91406; Tel: 888-7071-1826, +1 (818) 222-9200, E-Mail: sales@oesincorp.com or visit the website at http://www.oesincorp.com
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Linear Motion Control – Six-Axis Linear and Rotary Positioning Stage!
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Santa Clarita, CA —– Linear Motion Control – The SRS-080-10-020-01-3EXRTS is a six-axis positioning stage that consists of three rotary motors, with encoders, each mounted to three independently moving linear axis. It is ideal for applications that require independent multiple motions on a single travel plane.
Each linear axis uses a H2W brushless linear motor BLDM-D06 to generate a continuous/peak force of 24.8 lbs [110 N]/74.5 lbs [331 N] with each moving table capable of a total stroke length of 82 in [2083 mm]. Each linear axis has an independent non-contact 1.0-micron resolution encoder head reading a single encoder scale allowing for precise positioning using any multi-axis motion controller. Each moving table is guided by a rigid recirculating ball linear bearing block sharing a single linear bearing rail.
Each rotary axis consists of a standard 34-frame rotary stepper motor with a 40,000 counts/rev resolution encoder. Using a state-of-the-art motion control electronics package provided by H2W, each rotary stepper motor can operate as a 2-phase rotary brushless motor. Each motor can generate a continuous torque of 27.1 oz-in [3.06 N-m]. Each rotary axis is removable, which, in turn, reduces the moving weight of the linear axis to which it was mounted. This allows for larger payloads on each linear axis.
The entire stage is assembled on a single piece of aluminum extrusion, thus reducing the overall weight of the system. It has end-of-travel rubber bumper stops, a home positioning sensor, end-of-travel-sensors, and custom mounting holes are available upon request. There are also provisions that allow customer cables to be routed within the cable carriers.
Features:
- Multiple linear motors on single magnet track Combined linear and rotary displacement
- Rotary axis is capable of full 360-degree rotation
- Ability to run closed loop rotary stepper motors
- Rotary axis can be easily removed
- Six axis of coordinated motion
- Assembled on a single piece of aluminum extrusion
- Cable carriers to route customer payload cables
About H2W Technologies, Inc.
H2W Technologies, Inc. is dedicated to the design and manufacture of linear and rotary motion products that are used in the motion control industry. The complete line of linear electric motors includes: Single and dual axis linear steppers, DC brush and brushless linear motors, voice coil actuators, and AC induction motors. Also offered is a complete line of ball screw, lead screw and belt driven positioning stages.
Other motion control products include: Limited angle torque motors for compact, limited angular excursion rotary servo applications, 3 phase brushless rotary servo motors with matching digital servo amplifiers and permanent magnet linear brakes for fail-safe, zero power braking for baggage handling and people moving applications as well as amusement park rides.
With over 75 years combined experience in the linear and rotary motion field, the H2W Technologies team of engineers offers the optimal solution to the most demanding motion control, requirements.
See Article: https://www.h2wtech.com/article/six-axis-linear-and-rotary-positioning-stage
See Video at Youtube: https://youtu.be/cfnl7wxrLCs
See Product: https://www.h2wtech.com/page/six-axis-linear-and-rotary-positioning-stage
For additional information contact Mark Wilson at H2W Technologies, 26380 Ferry Ct, Santa Clarita, CA 91350; Tel: 888-702-0540, Fax: 661-251-2067, E-Mail: info@h2wtech.com or visit the website at http://www.h2wtech.com
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Motion Control – Six-Axis Linear and Rotary Positioning Stage!
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Santa Clarita, CA —– Linear Motion Control – The SRS-080-10-020-01-3EXRTS is a six-axis positioning stage that consists of three rotary motors, with encoders, each mounted to three independently moving linear axis. It is ideal for applications that require independent multiple motions on a single travel plane.
Each linear axis uses a H2W brushless linear motor BLDM-D06 to generate a continuous/peak force of 24.8 lbs [110 N]/74.5 lbs [331 N] with each moving table capable of a total stroke length of 82 in [2083 mm]. Each linear axis has an independent non-contact 1.0-micron resolution encoder head reading a single encoder scale allowing for precise positioning using any multi-axis motion controller. Each moving table is guided by a rigid recirculating ball linear bearing block sharing a single linear bearing rail.
Each rotary axis consists of a standard 34-frame rotary stepper motor with a 40,000 counts/rev resolution encoder. Using a state-of-the-art motion control electronics package provided by H2W, each rotary stepper motor can operate as a 2-phase rotary brushless motor. Each motor can generate a continuous torque of 27.1 oz-in [3.06 N-m]. Each rotary axis is removable, which, in turn, reduces the moving weight of the linear axis to which it was mounted. This allows for larger payloads on each linear axis.
The entire stage is assembled on a single piece of aluminum extrusion, thus reducing the overall weight of the system. It has end-of-travel rubber bumper stops, a home positioning sensor, end-of-travel-sensors, and custom mounting holes are available upon request. There are also provisions that allow customer cables to be routed within the cable carriers.
Features:
- Multiple linear motors on single magnet track Combined linear and rotary displacement
- Rotary axis is capable of full 360-degree rotation
- Ability to run closed loop rotary stepper motors
- Rotary axis can be easily removed
- Six axis of coordinated motion
- Assembled on a single piece of aluminum extrusion
- Cable carriers to route customer payload cables
About H2W Technologies, Inc.
H2W Technologies, Inc. is dedicated to the design and manufacture of linear and rotary motion products that are used in the motion control industry. The complete line of linear electric motors includes: Single and dual axis linear steppers, DC brush and brushless linear motors, voice coil actuators, and AC induction motors. Also offered is a complete line of ball screw, lead screw and belt driven positioning stages.
Other motion control products include: Limited angle torque motors for compact, limited angular excursion rotary servo applications, 3 phase brushless rotary servo motors with matching digital servo amplifiers and permanent magnet linear brakes for fail-safe, zero power braking for baggage handling and people moving applications as well as amusement park rides.
With over 75 years combined experience in the linear and rotary motion field, the H2W Technologies team of engineers offers the optimal solution to the most demanding motion control, requirements.
See Article: https://www.h2wtech.com/article/six-axis-linear-and-rotary-positioning-stage
See Video at Youtube: https://youtu.be/cfnl7wxrLCs
See Product: https://www.h2wtech.com/page/six-axis-linear-and-rotary-positioning-stage
For additional information contact Mark Wilson at H2W Technologies, 26380 Ferry Ct, Santa Clarita, CA 91350; Tel: 888-702-0540, Fax: 661-251-2067, E-Mail: info@h2wtech.com or visit the website at http://www.h2wtech.com
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