Tolerances of the APA frames Inspection results Tolerances

Tolerances of the APA frames • Inspection results • Tolerances of components • Tolerances on assembly 1 5/26/2020 D. Wenman | Tolerances of APA frames

Forty nine points are surveyed Note: Coordinate system is fit to P 1, P 6, P 12, and P 17 y x 2 5/26/2020 D. Wenman | Tolerances of APA frames

Summary of results Result Overall flatness Overall bow Overall twist Twist Zone 1 Twist Zone 2 Twist Zone 3 Twist Zone 4 Twist Zone 5 Fold - front side Foot tube Rib 1 Rib 2 Rib 3 Rib 4 Head tube Max. x dev. Max. y dev. 1. 9 -1. 1 -0. 2 -0. 1 -0. 8 -0. 3 0. 6 0. 5 0. 7 0. 5 0. 2 -1. 9 -1. 1 Limit units 11 mm 2 mm/m 2 mm/m 1. 2 mm Minimum Envelope 2299. 88 Notes: 1) Board mounting features are within 0. 5 mm except for one foot tube hole at a y deviation of -1. 1. 2) 2) Features in middle tube are shifted ~1. 4 mm in the minus x direction. 3 5/26/2020 D. Wenman | Tolerances of APA frames

PD slot alignment As planned dedicated fixturing will better control the x and y position of the middle tube. Suggested tolerance is 2 mm positional tolerance in three dimensions 4 5/26/2020 D. Wenman | Tolerances of APA frames

Tolerances of components - Side tubes Tolerance of PD holes to side tube Datums is a true position of 0. 5 mm 5 5/26/2020 D. Wenman | Tolerances of APA frames

Tolerances of components - middle tubes Tolerance of PD holes to middle tube Datums is a true position of 0. 5 mm 6 5/26/2020 D. Wenman | Tolerances of APA frames

Tolerances on assembly – tube to tube +/- 2 mm 7 5/26/2020 D. Wenman | Tolerances of APA frames

Tolerances on assembly 4. 0 A B C Section A-A Datum A, B, and C are establish for best fit to P 1, P 6, P 12, and P 17 (see page 2) Should consider a gage for checking pattern and or checking PD insertion after railes are installed 8 5/26/2020 D. Wenman | Tolerances of APA frames

PD slot alignment Interface to mesh panels – How much space is needed to pass cables over rails? 9 5/26/2020 D. Wenman | Tolerances of APA frames