Servos, DC and stepper motors, solenoid, motor drivers (Adafruit-sold parts) — dimension sheet Source: Xem Studio, https://xemstudio.com/objects/adafruit-motors-servos-drivers/ (CC BY 4.0) Basis: Adafruit CAD (MIT) models of the sold motors and driver boards Catalog version: 2026-10-20 Sizes: see table below - Micro servo metal-gear (1143): 23 × 12.2 × 29 mm with tabs 32.5 mm apart (SG90/MG90S class). Sub-micro (2201): 20 × 8.5 × 23 mm. Standard-size servo body (2941 DC motor in servo body): 40.5 × 20 × 38 mm. - 28BYJ-48 5 V stepper (858): Ø28 mm body, 19 mm deep, tabs 35 mm apart with Ø4.2 holes, Ø5 mm D-shaft offset 8 mm from centre. NEMA-17 (324): 42.3 face, 34 mm long. TT motors (3777/3802): 70 × 22 × 18.5 mm. DC toy motor (711): Ø24 × 20 mm, 2 mm shaft. - Driver boards: A4988 / TMC2209 (6109/6121) 15.5 × 20.5 mm StepStick; DRV8871 (3190) 22 × 25 mm; 16-ch servo driver (815) 62 × 25 mm; Motor FeatherWing 51 × 23 mm; large solenoid (413) 40 × 25 × 27 mm with a 10 mm stroke. product bbox_l_mm bbox_w_mm bbox_h_mm 1143 Micro Servo - High Torque Metal Gear 31.3 30.7 12.0 2201 Submicro servo 30.1 24.9 11.8 2307 MicroServo MG923B 36.8 31.5 12.0 2941 DC Motor in Servo Body 35.9 30.3 11.8 3777 TT Motor 70.6 36.6 22.4 3802 TT Motor Metal Gear 72.0 30.3 22.4 324 NEMA-17 Stepper Motor 55.0 42.3 42.3 858 Stepper Motor 5VDC 42.0 34.5 29.0 711 DC Toy Motor 38.0 20.0 17.0 413 Large Solenoid 69.7 29.0 24.0 3190 DRV8871 Breakout 24.1 20.3 12.1 6109 A4988 Driver 26.7 24.1 12.0 6121 TMC2209 Driver 26.7 24.1 12.0 2927 Motor FeatherWing 50.8 22.9 10.2 2928 Servo PWM FeatherWing 50.8 22.9 10.2 815 Servo Driver 16 Channel 62.2 25.4 12.1 1438 Adafruit MotorShield 68.6 53.3 13.1 1253 Aluminum Timing Pulley 25.5 25.5 17.0 1866 Slide Rail Platform 59.0 47.0 20.0 1221 Adafruit 2020 Extrusion 100.0 20.0 20.0 6353 STSPIN220 Stepper Motor Driver 26.7 24.1 12.0 6318 Solenoid Driver 8 Channel 50.8 27.9 12.0 Files elsewhere (not hosted by Xem Studio; license as stated by the publisher): - Adafruit (official): Adafruit_CAD_Parts: STEP, Fusion 360 and STL for Adafruit products — STEP, F3D, STL — MIT — https://github.com/adafruit/Adafruit_CAD_Parts Free files (MIT License (Adafruit_CAD_Parts), Adafruit Industries; STEP + STL, 22 parts): https://xemstudio.com/files/adafruit/adafruit-motors-servos-drivers/index.json API: https://xemstudio.com/api/geometry?object=adafruit-motors-servos-drivers