Chur-RobotTeam Churro: Sharon Grimshaw, Maggie Su,

Louis Yi, Morgan Zheng

Revisited GoalsSafe and sturdy

All connected to one Easy to use and maintain

One container to loadCooking time preset

User choice in length and shape of churro

LogisticsSchedule

Still a little behind schedulePlanned to have two prototypes, changed to one

virtual prototype (continually updated) and one physical prototype (modified to match the virtual prototype)

Realized that we didn’t have all the parts we needed so we had to do a second round of ordering

Trouble with what voltage to use, 5V or 12VBudget (currently at $130)

Getting closer to the $250 but still on track to be under-budget

Mechanical: Overview

Mechanical: Modifications

Left: Extruder device

Right: Exchanger

Mechanical: More Modifications in progress

Churro rampSugar tray

shaker

Mechanical: Current Look

NEXT STEP: Fully assembling and testing subsystems

Electrical: Overview

Electrical: ProblemsSteppers

Speed/TorqueStopping

ServosPower draw

ThermocoupleAmplifier connections

User InputMechanical: Buttons Software: GUI

Pros:Easier to keep cleanSimple to makeCons:Require Arduino pinsWhere to place within

system?

Pros:Easy to understandMore options to choose

fromLess Arduino pinsCons:Laptop near foodComplicates use of

Arduino librariesOvercomplicating user

input?

Next StepsFinish construction of the mechanical systemSolving current issues – transistors, cutting

power during holding, DC motorDetermine how to interface

Arduino/thermocoupleTesting electrical/software with mechanical

system

Questions, Comments, or Concerns?