Standard Inspection Of A Part With A Provided Print
When a print is provided with the parts, it must be ballooned (by hand is acceptable) to correlate with the inspection report. Regardless of order quantity, 100% of all dimensions, attributes, dimensional locations, and print notes must be documented for the required sample size (See Statistical Sampling Table Below).
If not already on the print, the following needs to be checked and entered into the inspection report (Failure to provide the required information or products resulting in Xometry RMAs - Customer Returns may result in VQC Inspections being instituted):
- Certificate of Conformance
- correct material to drawing spec
- material test reports if required
- plating and certification
- surface roughness (125 or better unless noted)
- all inserts installed and done correctly,
- all parts deburred (as per print requirement)
- all parts clean and threaded holes do not have chips packed in the bottom
Standard Inspection Of A Part Without A Provided Print
When a part does not have a print provided, our partners are to inspect the part to the CAD file and document the following specifications to verify correct setup and programming. Inspection results may be recorded in the Partner standard inspection report format unless otherwise stated. (Failure to provide the required information or products resulting in Xometry RMAs - Customer Returns may result in VQC Inspections being instituted):
- Certificate of Conformance
- Material test reports if required
- Plating and certification
- Overall length
- Overall width
- Overall height
- All hole locations, diameters and depths
- Thread sizes and depths (note: thread depths are a frequent failure)
- Threaded holes square to the surface (note: hole perpendicularity is a frequent failure)
- Pocket/step depths (at least 1 depth per face)
- Corner radii correct to model (note: this is a frequent failure)
- Each face should have at least 1 feature check for X and Y location from zero edge
- Surface roughness (125 or better unless noted)
- All inserts are installed correctly
- All parts are deburred
- All parts are clean and threaded holes do not have chips packed in the bottom
Note: All changes made to inspection documents must have approval traceability. It is not acceptable to alter, obliterate, or otherwise cover over documented results. The usage of whiteout is not permitted. The presence of these conditions is a non-conformance. If an error is made, the error should be struck through with one line (leaving the original data discernible) and should be initialed by the person making the change.
For a Formal Inspection, Xometry requires the use of calibrated tools where 100% of all dimensions, attributes, dimensional locations, and print notes will be documented per our Statistical Sampling Plan based on ASQC Z1.4 2008 Level II (see below) to an Acceptance Quality Level (AQL) of 2.5% with zero rejects. To facilitate the inspection process, Xometry requires the customer to supply a dimensional print at the time the order is placed.
Inspections performed for a Formal Inspection shall be documented using the Partner Inspection Form QA2F03. Xometry QC will bubble the customers drawing and provide a pre-populated QA2F03 form. The Formal Inspection Form documents the Tool Type, including measurement capability (Ex: .0000-1.00" Diameter Micrometer) used during the inspection. In certain circumstances, XOM may also require the unique Tool ID # for specific customers. Absence of any required information may be considered a non-conformance. On jobs that require this type of inspection, this form will be emailed to the Partner from the Xometry Quality / Inspection Department. Add VQC@xometry.com to your email's whitelist so you never miss this important document.
Once the inspection documentation is completed, all forms should be uploaded to the Partner Portal as well as included in the box at the time of shipment.
A CMM Inspection with Dimensional Report is similar to a Formal Inspection where 100% of all dimensions, attributes, dimensional locations, and print notes will be documented per our Statistical Sampling Plan based on ASQC Z1.4 2008 Level II (see below) to an Acceptance Quality Level (AQL) of 2.5% with zero rejects will inspected using a Coordinate Measurement Machine (CMM). Once the inspection documentation is completed, all forms should be uploaded to the Partner Portal as well as included in the box at the time of shipment.
Uploading Formal & CMM Inspection Reports
Instead of filling out one report for each sample part, only one report is required.
- The number of samples to be measured will be pre-populated in the upper right-hand corner of the report under “Qty Inspected” (see below)
- Results should be entered into the report as “Min and Max Results”, meaning you should enter the minimum and maximum measurements, of each dimension, of your sample lot
- Please note that you will still need to tag the pieces you used to create the report as “Sample Pieces”
Formal & CMM Inspection Report VQC
A Report VQC will be required when a job is accepted that requires a Formal Inspection, CMM Inspection, or First Article (FAI) inspection. Xometry will bubble the customer print and generate a report layout for you to fill out. These will be available to download from the partner portal as they are ready. Please keep in mind that all dimensions need to be measured with calibrated equipment. To complete the VQC process, the following will be required:
- All reports must be typed, not handwritten
- All information must be filled out completely. This includes material information at the top of the form, all results, and all tooling information for each result. The reports must be signed and dated on all forms.
- Parts that were checked MUST be tagged so that Xometry and the customer can correlate what parts were used to fill out the reports. Please expect these to be checked as well as the possibility of a random part that is not tagged.
- If the measurement requirement is a number, a number result must be provided, not a Pass or Fail.
- All dimensions on the report must have a result.
- Report must be on the Xometry report that was provided by Xometry with the job.
- Picture Requirements:
- Picture of every side of the finished part
- Pictures of the sample tags.
- Picture of the parts bagged and tagged if required by the customer.
- Picture of the part marking if one is required
- Picture of any installed inserts as required with the job.
- If a job requires it, you must have the CoC completely filled out and uploaded and all material, finishing, marking, and hardware certs uploaded to be reviewed.
Formal/CMM Specific Guidelines:
- A range MUST be recorded in the results column that shows the minimum and maximum result you have across multiplied dimensions and across the sample parts that were checked.
FAI Specific Guidelines:
- There will be individual reports for each sample piece required to be checked and recorded
- Each multiplied dimension will need to be recorded individually. (If a dimension is called out 5x, there will be a spot to put 5 different results.