Hardware 

• 8 × 'M5×15'

• 40 × 'M4×20'

• 8 × 'M4×15'

• 48 × 'M4 nut'

• 4 × 'M3×20'

• 28 × 'M3×10'

• 16 × 'M3 nut'

• 8 × 'F625zz Flange ball bearing'

Electronic Components

• 12 Servos MG996R 180º

• 1 or 2 PCA9685 (this is configurable in the ~/spotmicroai.json config file)

• DC to DC 5v output step down voltage regulator (a stepdown/step-up converter will give longer work time)

• BEC 6v output (to feed the servos)

• 7.4 or 11.1v batteries with enough current to feed the servos

• A rocker switch

• 16x2 LCD Display Screen with I2C Module Interface Adapter

• RaspberryPi Zero W with headers soldered

• SD card

• XBox one or PS4 remote controller

3D-Printed Components (https://gitlab.com/public-open-source/spotmicroai/3dprinting)

• Fran Ferri 3D Parts: https://gitlab.com/public-open-source/spotmicroai/3dprinting/-/tree/master/User%20Fran%20Ferri%20models 

  • Material Generic PLA 215/65

  • Top and Bottom covers have layer length 0.2mm

  • Legs covers have layer length 0.15mm

  • Material Generic TPU(TPE)/Flexible Temp: 245/50

  • Legs shoes/sole layer 0.2mm 15% infill

  • Learn a bit about TPU(TPE)/Flexi materials before you start printing them:

  • Recommended read:

    • https://blog.prusaprinters.org/how-to-print-with-flexible-filament/

    • TPU is basically rubber, you can adjust the legs shoes infill to have more grip. 100% infill will not have a lot of grip since will become a solid piece, but 10% will be soft and will behave better.