Add Augmented Reality to Your Large-Scale Metrology
Welcome to the Family, DirectProjectTM
Metrology Data Like You’ve Never Seen It Before
DirectProject is the newest Delta Sigma Company (DSC) ProjectionWorksTM family member. We designed this exciting new development with metrology in mind, but it can also support assembly operations with automated tools.
DirectProject works with 3-D data software to display data on parts exactly in place in full scale and full color in augmented reality (AR). It also allows automated hand tools to drive AR displays. Here are a few sample applications:
Surface deviation from CAD nominal
Measurement devices such CMM arms, laser trackers, or laser radars scan over the areas to be measured while providing real-time data to PolyWorks. Prior to taking measurements, authors describe the desired AR data displays on the parts using the new ManuScriptTM 4.0. For example, in this case, we’ll use color to describe a surface deviation from the desired position. The data display appears as a “weather map” with color physically illuminating points on parts for displays that need no interpreting at all. Technicians see exactly what work needs to be performed, how much, and exactly where to do it. As they sand and re-measure areas, new data appears on the parts. The process repeats until the entire area is within tolerance.
Complex torque sequencing
A series of fasteners must be tightened in increments in a precise order, but torque values aren’t the same on all fasteners. Assemblers can use Desoutter torque wrenches to control workflows. Using ManuScript, authors describe torque values and sequences. If they’re available in the CAD model or another data file, authors simply import this data. Once authors define torqueing tasks, technicians start using the Desoutter software while the DirectProject system provides an AR display that indicates the correct fasteners to torque. Visual displays indicate errors and out-of-tolerance values, causing users to take action to correct the problems or recording items that need further action.
Search and destroy
Assemblers use the VeriSurf search and destroy mode to identify points on surfaces that need to be measured for surface contour verifications. The DirectProject system displays arrays of dots the size of the measurement point tolerances on the parts. Using measurement instruments of choice, users simply touch part surfaces inside the dots.
VeriSurf captures the points, and those points immediately disappear from the parts. Users can leave the areas covered by the samples blank or indicate pass or fail using colors, depending on the work cell needs.
Tooling verification and recalibration
Metrology software measures key points for annual tool inspections. First, the DirectProject system indicates where to make measurements, then the AR display shows any necessary adjustments. If the software takes measurements in real time, it also displays the data in real time with sub-second latency. Since the displays are adjacent to the adjustments, operations are faster and less prone to error.
How it works
The DirectProject system registers the patented DSC 3-D projection engine into the part or assembly coordinate system using only target features (no reflectors required). The ProjectionWorks registration software accomplishes this typically in 1-2 minutes per projector or in zero time for standard repeatable setups like typical parts built in jigs.
After that, users operate the system from the controlling devices or software package. There is no new user interface to learn to make measurements — the system operates using the software or tools you’re already using — but the instructions or data appear on the parts exactly and have clear, unambiguous meanings.
Like all ProjectionWorks products, users can control a constellation of projectors using DirectProject to cover any size or shape object.
Delta Sigma Company 2017 Events Schedule
| HAI-HELI Expo | Mar 6-9 |
| AeroDef | Mar 6-9 |
| Wire Processing Expo | May 10-11 |
| Coordinate Metrology Society (CMSC) | July 25-29 |
| The Composites and Advanced Materials Expo (CAMX) | Sept. 11-14 |
| Antenna Measurement Techniques Association (AMTA) | Oct. 15-20 |
