Adafruit Motor Shield V2 for Arduino (1438) — UNO shield outline, 3 × Ø3.2 holes and capacitor heights — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/adafruit-motor-shield-v2-1438/  (sheet CC BY 4.0)
Basis: Adafruit's Eagle board file 'Adafruit Motor Shield v2.3.brd' (GitHub) and the Adafruit product 1438 page.
Catalog version: 2026-10-20

Overall (mm): length 68.58, width 53.34, height 7.0
- Exact nominal dimensions. Arduino UNO shield outline 68.58 × 53.34 × 1.6 mm with the UNO's two 2.54 × 2.54 chamfers on the +X edge; datum is the board centre, bottom on z=0.
- Three mounting holes Ø3.2 at (−19.05, +24.13), (+31.75, +8.89) and (−20.32, −24.13), i.e. UNO holes (15.24, 50.80), (66.04, 35.56) and (13.97, 2.54) from the UNO's lower-left corner. The fourth UNO hole is not drilled.
- Tallest parts: three Ø5.0 electrolytic capacitors, top 7.0 mm above the board bottom, at (+14.10, −4.95), (−20.57, −11.30) and (−26.92, +15.37).
- Not modelled: Arduino stacking headers, 3.5 mm terminal blocks and servo headers (all ship loose), ICs and small parts.

hole  x mm  y mm  diameter mm
1  -19.05  24.13  3.2
2  31.75  8.89  3.2
3  -20.32  -24.13  3.2

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Adafruit: Adafruit Motor/Stepper/Servo Shield for Arduino v2 (1438) — web — Publisher's page; dimensions are facts — https://www.adafruit.com/product/1438
- Adafruit (GitHub): Adafruit-Motor-Shield-V2-PCB (Eagle board files) — web — Publisher's page; dimensions are facts — https://github.com/adafruit/Adafruit-Motor-Shield-V2-PCB

Free files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/adafruit-motor-shield-v2-1438/index.json
API: https://xemstudio.com/api/geometry?object=adafruit-motor-shield-v2-1438