PD_DRAFT_26M-259A-DI rev1.docx

26M-259A-DI

Rev 1 22 Jan 2026

PURCHASE DESCRIPTION

FOR

Portable CMM

1. SCOPE:

This Purchase Description (PD) describes the specifications and requirements for a Portable Coordinate Measurement Machine (CMM). A Portable CMM is a device that has the ability to measure in 3 Dimensions, using the flexibility of rotational joints and/or camera-based imaging system with a pressure sensitive touch probe. Unlike using traditional 1 Dimension hand tools, the Portable CMM can measure without the need to align or orient the part to a reference surface. The Portable CMM will have at least a volume measurement range of 1x1x1 meters (length x width x height) with touch probe capability. The Portable CMM will be supplied with a laptop controller and necessary software to be able to collect data points and calculate various Geometrical, Tolerancing and Dimensional (GD&T) parameters that does not require internet connection.

2. PERFORMANCE REQUIREMENTS:

2.1. Range: The Portable CMM shall have a minimum range of 1x1x1 meters (length x width x height) and a maximum range of 2x2x2 meters.

2.2. Resolution: The Portable CMM shall have a minimum resolution of 0.0001 millimeters or better.

2.3. Measurement Uncertainty: The Portable CMM shall have a length measurement uncertainty ±8 µm up to 50 mm, ±13 µm from 50mm to 500 mm, and ±25 µm from 500mm to 2000 mm. Specifications are based on the ASME B89.4 or ISO 10360 standards.

2.4. Units: The Portable CMM shall have the capability of reading in Imperial and Metric units.

2.5. Probing: The Portable CMM shall have a pressure sensing touch probing device that will automatically capture a measurement point when a certain amount of force is applied to the probe.

2.6. Warm-Up Time: The Portable CMM shall meet all specifications contained in this PD after a warm-up time not to exceed 20 minutes.

2.7. Environmental Control: The Portable CMM shall be environmentally compensated to correct measurements for temperature and humidity.

3. FUNCTIONAL REQUIREMENTS:

3.1. Control: System shall be able to operate using programmed guided routines to collect data and be able to collect data manually.

3.2. User Interface: Operator shall be able to input data using keyboard. The operator shall be able to initiate and terminate data collection via buttons located on the handheld portion of the Portable CMM.

3.3. Controller Connection: The Portable CMM shall connect to a laptop controller via USB, Bluetooth, and/or direct Wi-Fi (no internet connection).

3.4. Ancillary Equipment:

3.4.1. System Mounting: Mounts shall be included with the Portable CMM to be able to secure or set the Portable CMM to a granite surface plate and tripod.

3.4.2. Probes: The Portable CMM shall include at least two different sized probe stylus between 2 millimeter and a 6 millimeter contained in a reusable case. The probes shall be made of a ruby or ceramic material. The Portable CMM shall include the stylus calibration jig to standardize the probe.

3.4.3. Staging Table: The Portable CMM shall include a staging table with a replaceable baseplate used to secure fixtures during measurement sequence. The baseplate shall include threaded holes that include a hold down clamp set.

3.4.4. Calibration Equipment: The Portable CMM shall include any equipment used to calibrate, standardize, or validate the measurement accuracy of the system prior to use or on a periodic time interval.

3.5. International Standards & Publications: Calibration of the Portable CMM will be completed IAW the ASME B89.4 or ISO 10360 and a Calibration Certificate will be supplied from the manufacturer or vendor.

4. PHYSICAL/MECHANICAL REQUIREMENTS:

4.1. Model and Serial Number Identification: Every item with the Portable CMM shall be identified with some type of inscription/label stating part number, model number, and serial number that can be referenced back to the manufacturer and must conform to UID requirements as stated in the contract.

4.2. Carrying/Shipping Case: A reusable protective case(s) shall be provided, which shall hold the Portable CMM and ancillary equipment. The case shall be rugged, waterproof, and capable of withstanding shock and vibration from transportation. The case shall be capable of transporting by two person lift or rolling wheels. The case will be inspected by the Air Force and shall be free from any defects (i.e. poor molding fabrication, loose materials, damaged or improperly assembled cases, peeling, or chipping of plating or finish, nicks or burrs of metal parts, and post molding warping) which affect the durability, strength, safety, or serviceability. The finish of exposed edges/surfaces shall be smooth and free of sharp or jagged edges.

4.2.1. Hardware: The Case(s) shall have permanently mounted corrosion resistant metal hardware. Case hardware should consist of at least two heavy duty handles; as well as any combination of clasps, buckles, or hinges that allow easy opening and closing of the case.

4.2.2. Cushioning: The Case(s) shall have foam inserts configured specifically for the Portable CMM and ancillary equipment. The foam shall be made of a material that does not deteriorate.

4.2.3. Seals: The Case(s) shall be sufficiently sealed to be watertight and provide protection from moisture, salt spray, sand, and dust.

4.3. Dust Cover: A reusable cover shall be provided to cover the Portable CMM when not in use and not in protective case.

4.4. Operating Environment/Storage: The Portable CMM shall meet all performance requirements over an operating temperature range of 18°C to 28°C with a humidity range of 20% to 60% RH.

4.5. Power Requirements:

4.5.1. The Portable CMM shall be able to operate on a line power and/or on a supplied rechargeable battery for at least 3 hours. If the Portable CMM uses battery operated devices, it shall warn the operator when battery is getting low and the battery charger shall be supplied.

4.5.2. Electrical Power and Connections: The Portable CMM shall operate on a line power of 120 VAC and frequency of 50/60 Hertz.

4.5.3. Electrical Safety: Documentation shall be provided to support the means by which all electric safety considerations for the Portable CMM have been addressed. The safety of all personnel shall be assured during use, maintenance and handling of the equipment. This documentation shall consist of a minimum of a citing of a UL (Underwriters Laboratories), an ANSI identified standard, or any recognized equivalent industrial or commercial standard.

4.5.4. Fuses: A fuse or circuit shall be provided which shall disconnect the Portable CMM from the power source in the event of excessive current which could damage the electronics package.

5. CONTROLLER REQUIREMENTS:

5.1. A laptop controller is required that can efficiently operate under Microsoft Windows 11 Long-Term Servicing Channel (LTSC) 64 bit operating system. All major components of the system must be commercially available and fully supportable by commercial sources. Where specific brands are identified in this specification, no substitutes are allowed without prior approval from AFMETCAL. The Controller must meet or exceed Microsoft Windows 11 LTSC hardware requirements.

5.2. Memory: Minimum 8 GB system Memory

5.3. USB: Minimum of two integrated USB 3.0 ports not being utilized by other components.

5.4. External video support: External video support shall be included

5.5. Display Panel: 15-inch (diagonal) or larger viewable display

5.6. Hard Drive: Minimum 120 GB Solid State Drive

5.7. DVD-ROM: Internal or External DVD +/- RW or Blue-Ray

5.8. Additional Hardware: Additional hardware required to make this system function as identified by this PD shall be required.

5.9. Operating System and Software: All software must run under Microsoft Windows 11 LTSC 64 bit operating system. All software shall run Windows 11 as a non-elevated user. All software must run with multiple Windows 11 user accounts.

5.10. Software Identification: All software used in conjunction with instrument shall be identified by Name, Version, and Date; to be displayed upon startup or located in an “About” menu in the software.

5.11. Measurement Software: The Portable CMM must include measurement software to be able to perform tasks under paragraph 2.0 that do not require an internet connection. This software shall be used to collect data points, display real-time locations, analyze data, perform Geometrical, Tolerancing and Dimensional (GD&T) calculations, import/export CAD drawings for comparison, and export numerical data into an acceptable form for Microsoft Excel 2021.

5.12. Guided Calibration: Software shall be included to be able to lead the user through a compensation/calibration process of the Portable CMM IAW ASME B89.4 or ISO 10360.

5.13. Report: The software shall be able to create reports to include data results, graphs, and raw data; which could be customized to user’s needs.

5.14. Operations Files: Files created shall be capable of being stored for later use.

5.15. Licensing:

5.15.1. Contractor shall provide sufficient application software licenses to support each unit.

5.15.2. All software provided under this contract shall be on the same version, revision, and revision date at the completion of the contract.

5.15.3. All installation disks required to reinstall software and drivers shall be included.

5.16. Software Warranty: The contractor shall warrant that the software product meets this PD and is free from defects in design and operation and will perform to stated specifications. The contractor's Commercial Warranty or Addendum shall include verbiage to ensure the requirements in this PD are satisfied. All other clauses of the contractor's warranty shall remain in effect unless they contradict the requirements stated below.

5.16.1. Maintenance Agreement: Software Maintenance and Warranty shall be provided for the same length as each unit’s accompanying warranty.

5.16.1.1. Maintenance shall include:

5.16.1.1.1. Software patches, fixes, version updates and major revisions that provide corrections to problems, added functionality, and/or performance improvements that can be applied to all licenses.

5.16.1.1.2. The contractor shall include technical support at no additional charge for normal software usage, clarification of documentation and resolution of software problems. The contractor shall have multiple methods for convenient contact of Technical Support. Contact methods may include but are not limited to email and telephone.

5.16.1.1.3. The contractor shall provide periodic updates to the software for incorporating standard enhancements to the commercial product and/or correction of substantial software defects. Software updates shall be coordinated through AFMETCAL prior to distribution to the regional PMEL suppliers to assure Air Force configuration control.

5.16.1.1.4. AFMETCAL will provide the contractor a single point interface for the Software configuration management, distribution, and maintenance issues.

6. OPERATOR’S MANUAL: Manual shall be IAW DD1423 CDRLs and Data Item Descriptions, and shall also include, at a minimum, the following information:

6.1. Operation of system, including startup and setup

6.2. How measurements are set up in software

6.3. System maintenance and troubleshooting techniques

6.4. Calibration procedures for Portable CMM

7. INSTALLATION REQUIREMENTS: The contractor shall be responsible for setting up the system at each customer’s (unit destination’s) premises, including some overseas locations, to ensure the system is fully functional and meets the requirements of this PD. Facility requirements for training shall be identified by the contractor no less than 30 days prior to the date of delivery.

8. TRAINING REQUIREMENTS: Upon completion of installation, on-site training shall last at least one 8 hour working day. Training will demonstrate the technical operation, physical operation, system verification(s) (including manual verifications), and features as described by this PD. Training shall cover all portions of the Owner’s Manual, instructions on the use of all software functions and menus, and instructions regarding system maintenance and troubleshooting techniques. Training shall consist of verbal/visual instructions and complete hands-on measurements.

9. WARRANTY: Unit shall be supplied with a 5 year warranty to include repair and calibration of the Portable CMM if the equipment fails to meet manufacturers accuracy specifications.

10. ENVIRONMENT, SAFETY, AND OPERATIONAL HEALTH: A combination of the system manual, other documentation, and/or the system itself shall identify potential environment, safety and operational health hazards and how they are mitigated when the design itself cannot mitigate them. This will be accomplished through stating the hazard and accompanying mitigation through the use of safety devices, use of warnings, or use of special operational procedures to counter such hazards.

11. TESTING: This item will be inspected and accepted at the destinations stated in the contract. The item will be checked with test equipment with parameters equal to or better than those required to assure that specified performance parameters are met. Test equipment used shall have second echelon certification directly traceable to the International System of Units through the National Institute of Standards Technology (NIST) or other National Metrology Institutes (NMIs) approved by AFMETCAL. Tests will be performed to ensure that the item meets or exceeds all of the requirements of this PD. Such testing at destinations does not relieve the contractor from performing all inspections and quality checks at the point of manufacture as necessary to assure performance as specified herein.