For my final project I am going to
make a bar bot. The
bar bot will be able to dispense one
jigger of alcohol or other liquid.
On
this dispenser there will be two peristaltic pumps that can both
dispense
liquid. There is
other systems available
and very large scale that interfaces with a computer to be able to make
drinks
but are very expensive.
What has been done before?
There are starting to be a lot of
people creating drink
dispensers some are basic and then it goes all the way to commercial
devices.
http://hackaday.com/2013/12/31/barbot-mixes-drinks-perfectly-with-web-interface/
http://www.xhbms.com/cocktail-machine
Components
The materials needed should be two
peristaltic pumps for the
dispensing of the liquid, the next main part will be an attiny44 atmel
micro
controller. I will
probably use acrylic
or very nice plywood to make a stand and mount for the pumps and
control
board. The last
pieces of the project
will be some miscellaneous electronic parts like push buttons and
h-bridge for
running the pumps.
Sourcing of components
I will get the peristaltic pumps from
adafriut and the other
parts will be from the fab academy inventory.
Most of the electronics parts will be
from digikey.
Cost
The pumps will have to highest cost
of $25 per pump. The
rest of the cost will be in the acrylic
or plywood and the electronic components and I estimate that about
another
$30.
What parts and systems will be made?
The parts to be made will be the
stand for the pumps and the
controller and the custom designed and cut printed circuit board with
the micro
controller and other peripherals on it.
What processes will be used?
The processes to be used will be 2D
and 3D cad to design the
stand and if possible the pump. I
will
use the laser to cut the parts for the stand and the Roland mill to
cut the
circuit board. I will use eagle to design the circuit
boards and either the arduino ide to code the micro or the avr C
compiler in Linux. I may use the 3d printer to make buttons.
What tasks need to be completed?
What questions need to be answered?
What is the schedule?
| Task | Estimated Due date |
| Acquire Parts | 6/2/2016 |
| Design PCB | 6/4/2016 |
| Create PCB and Populate | 6/6/2016 |
| Design Stand | 6/10/2016 |
| Write code | 6/9/2016 |
| Test | 6/15/2016 |
| Presentation | 6/20/2016 |
How will it be evaluated?
Has the device been able to dispense
a repeatable amount of
liquid.