If you are manufacturing PCBs, you will want to have a way to ensure your boards are functional and without defects. One method for in-circuit testing is to use of a bed of nails fixture. We can provide a variety of cost effective solutions for your boards. We specialize in custom solutions, so whether you need PCB level prototype testing or full scale final assembly testing, we can help. We provide PCB level testing for lab or manufacturing.

Our final assembly level test fixtures are design with user experience in mind and robust construction ideal for manufacturing environments. SIGMADESIGN offers outstanding service and quality on custom test fixtures to meet your schedule and budget.

There are countless ways to measure belt tension, but rarely do they work for ultra-low tension measurement. These applications often require highly customized solutions. That’s where we can help. Deflection, sonic, or custom strain-gauge yokes, we have employed them all to measure belt drives at the low end of the spectrum and we love a new challenge!

If setting accurate belt tension is important for your manufacturing needs, give us a call.

SIGMADESIGN provides custom dispensing systems that ensure smooth and consistent dispensing for various purposes. We have a lot of experience designing dispensers for different applications including medical fluids, adhesives, lubricants, herbal extracts, and food grade products. 

A custom system can address metering, environmental factors, precision requirements and placement, and product loss mitigation. Dispensing methods can be very simple, but integration into your specific application can require custom fixturing. SIGMADESIGN provides custom systems from hand-held to fully-automated arrangements that meet your dispensing needs. 

Whether you need help with metering a dynamic viscosity liquid or engineering to solve environmental concerns, we provide serviceable, custom dispensing systems. Contact us today to discuss your particular needs.

Displacement/ Distance/ and Position Measurement

From meters to microns, contact or no-contact, to big budget or small budget, if distance or position are critical in your application, our team can help.  SIGMADESIGN has delivered thousands of tools and fixtures to assist manufacturers in measuring critical parameters using mechanical gauges, lasers, capacitive, inductive (LVDT), resistive sensors, and precision calibration fixtures.

For in-line or mid process, we develop characterization tooling of all kinds that ensure proper assembly. If your assembly process requires displacement, distance, or position measurement, we can help! 

A Go-No-Go tool can be a very simple device checking to see if a part length is correct. Sometimes though a Go-No-Go tool requires more complexity than a simple gauge. The tool may need to inform the user with visual or audible cues to indicate whether to part is in or out of spec. Whichever end of the spectrum you require for you Go-No-Go tools, we can help you can develop a robust solution.

There are many off-the-shelf lift mechanisms, but sometimes the only solution is custom. At SIGMADESIGN we design and build customized lift assist devices that are produced specifically for your application. Ergonomics and user experience are important considerations for any lifting application we design.

With input from you, the user and engineers, we provide solutions such as interlocks, end effectors, or complex positioning systems. With parameters such as complex heavy shapes or multiple simple items, we can design a product that reduces operator fatigue and provides precision operator controls for accurate picking and placement. Some of our systems include: shuttle tables, zero G lifts, optical tables, pallet lifts, and tool balancers.

Measuring mechanical force with a load cell is fairly well understood. Getting the load cell to the measurement point, ensuring it survives in your environment, designing in overload protection, and making it easy to calibrate can be the real challenge. Our experience with load cells, strain gauges, and custom yokes makes us a great resource for tools that push, pull, bend, break, slip, or slide. 

Sensor Verification and Nest Alignment Tools have multiple functions.

SIGMADESIGN develops various nest and holding fixtures based on specific requirements. For example, a tool may verify that transducer readings displayed by the PLC are accurate and align physical location of the tooling station with respect to the nest in multiple directions.

Plastic Welding/ Induction Welding/ Ultrasonic Welding

If your product requires joining complex material properties, SIGMADESIGN can design a custom system for your specific application needs. Plastic welding can offer exceptional strength, and often reduced cycle times compared to other joining options such as mechanical, or chemical. Our experience includes holistic systems that may incoporate a part welding station for pressing, heating, and cooling the desired parts. We typically use plastic welding, induction welding, or ultrasonic welding depending on client needs.

We also design fixtures and holistic systems that integrate plastic welding to complete various part assemblies with semi-automated stations. We understand how to incorporate custom fixtures into overall system design for production of complicated parts that may require induction or ultrasonic welding. We encourage innovation, so any configuration you need is possible.

Pneumatic/ Hydralic/ Mechanical Presses

SIGMADESIGN can provide custom presses for your manufacturing needs. Plastic, steel, rubber, you name it!  High volume or low volume.  When it comes to pressing 2 or more parts together, we have the experience you need. 

We have delivered thousands of custom presses including encoder presses, gear presses, and lamination presses for a vast array of applications. We aren’t scared of tight tolerances or complex design requirements. Our custom presses are easily serviceable and utilize robust industry leading components.

Whether you need to measure hydraulic systems at 1000’s of PSI or a slit seal that opens at ½ inch of water, understanding your systems needs is critical. SIGMADESIGN can help you determine the correct measurement method, the right sensors to use, how to properly condition the signal to ensure you are getting the information you need, and how to calibrate your system. We have experience measuring pressure in hard to reach areas, in-line automation, and anything from medical grade to harsh caustic environments.

SIGMADESIGN has developed a variety of pull force test tools for different applications within the medical and consumer electronic industries. As with most of the tools we develop, no two problems are the same and therefore no two tools operate in the same manner. Our experience reliably measuring the pull force of various systems, such as paper from a roller or a connector from an electrode, ensures that we’ll be able to design a system for your specific need.

Static or Dynamic. Motor output, system torque, benchtop to complex in-system coupling applications.

Since 2004, SIGMADESIGN has designed and built hundreds of tube setters. This experience along with rigorous testing has made us one of the industry leaders in pushing tubes onto barb fittings for high-speed assembly lines. Though simple in theory, tube setting is not as easy as it seems. Tube materials range from soft and tacky to hard and slick and must be handled in very different manners to ensure a consistent tube set without damaging the tubes. Our vast experience with these devices, gives us confidence that we will find a solution to your tube setting issue.