Level 1 – Prototype Support removal & shot peen Visual inspection of part features and record of any build non conformity Dimensional record of general tolerances, extent dimensions Drawing or prints used for feature reference only Drawing NOT required No secondary machining No EDM operations

Level 2 – Engineering Perform Level 1 inspection, as described above Dimensional record of features specifically identified by customer only Any deviation will be sent to customer for review and buyoff Certificate of Conformance is limited to features specifically identified by customer Material Certifications provided as required specifically by customer Standard Sampling Plan utilized

Level 3 – Production ISO Perform Level 2 inspection, as described above Customer drawing(s) required All dimensions with tolerances +/-.005” or better Inspected and recorded on DMI QA002 Inspect all GD&T unless specified otherwise Any deviation will be sent to customer for review and buyoff Certificate of Conformance as required Material Certifications provided as required by customer Standard sampling plan utilized

Level 4 – Production AS Perform Level 3 inspection, as described above Customer drawing(s) required Pre production Manufacturing Plan approval as required All dimensions with tolerances +/-.005” or better inspected and recorded on AS9102FAI Inspect all GD&T unless specified otherwise Any deviation will be sent to customer for review and buyoff Secondary machining operations to meet specific drawing tolerances This may include EDM or 4th Axis operations Specific finish detail requirements Typical sampling plan used for inspection Material certifications as required Certificate of Conformance as required Material Certifications provided as required Standard sampling plan utilized

General Tolerances

Plastic Laser Sintering +/-.010” first inch, +/-.003” each inch thereafter
Metal Laser Sintering +/-.005” first inch, +/-.002” each inch thereafter
Hole Diameters +/-.007”
Surface Finish 200 Ra +/- 50 Ra

Sampling Plan

The chart below depicts DMI sampling plan conforming to ASQZ1.4-2003 Standard for sampling plans. A “Batch” as defined in DMI sampling plan is a group of parts built in a single build envelope.

BATCH SIZE	INSPECTION SAMPLES
2-8	2
9-15	3
16-25	5
26-50	8
51-90	13
91-150	20
151-280	32
281-500	50
501-1200	80
1201-3200	125