Mechanical Design

Team members:

Alessandro Alonzi and Nicola Giannelli

ScrewBot

Screwbot is a dealer wich can pick a box from his slot in a frame and release the content outside.

Structure:

- one vertical frame to hold the X/Y axis movement
- one horizontal frame to hold the Z axis movement
- one servomotor to let the box bend forward
- one frame in wich boxes are stored

How it works:

- a plate moves on X/Y axis and position itself in front of the selected slot
- the Z axis moves towards the plate and stops
- the plate hooks the box in its fissures and it goes up a little
- the Z axis go back
- the X-Y move the box on the top
- the servo bends the box, letting the content fall
- the servo bends back the box and X-Y goes back to origin

Electronics

- 3 nema 17 stepper motors
- 1 servo motor
- 1 Arduino Duemilanove
- 1 CNC shield with stepper motor drivers
- 1 External 12V DC power supply

Photo

Video

As it's possible to see in personal documentations, the design is not as expected, but every movements is working.
Some videos of the various movements:

Link to single contributes:

Files