Hand Mixer

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Ben Bouffard

Andrew Greulich

Chris Jones


Primary Function

The primary function of the hand mixer is to mix food (eggs, cake, etc.) by using a small motor to rotate two beaters.

User requirements:

  • Mixes foods
  • Is handheld and ergonomic
  • Visually Appealing
  • Does not Jam with food
  • Durability
  • Detachable beaters

Engineering specifications:

  • Maximum mass (grams)
  • Minimum mixer angular speed (radians/second)
  • Variable speed (number of speeds)
  • Minimum size of opening against beaters (mm)
  • High gear reduction ratio

A picture of the mixer before dissection

Customer Reviews

[[1]] [[2]] [[3]] [[4]]


The table below contains the Bill of Materials for the Durabrand Hand Mixer:

Table 1: Durabrand Mixer Bill of Materials
Part # Part Name Category Function Material Picture
1 External Switch Input Turns on and changes the speed of the mixer ABS plastic
Durabrand Mixer 1.jpg
2 Eject button Input Ejects the beaters ABS plastic
Durabrand Mixer 2.jpg
3 Ejector springs Other Returns button back to unpressed position Metal
Durabrand Mixer 3.jpg
4 Case Structural Seperates inner parts from user and provides an ergonomic handle ABS plastic
Durabrand Mixer 4.jpg
5 Switch Input Allows different amounts of current to enter the motor copper and plastic
Durabrand Mixer 5.jpg
6 Magnet Transmission Creates a magnetic flux to make the current carrying copper wire in the motor rotate ABS plastic
Durabrand Mixer 6.jpg
7 Fan Other Cools motor by sending air past it ABS plastic
Durabrand Mixer 7.jpg
8 Motor Input Converts electrical energy into mechanical rotation energy Mostly Copper
Durabrand Mixer 8.jpg
9 Worm gear Transmission Carries rotational power from motor Plastic
Durabrand Mixer 9.jpg
10 Gears Transmission Changes the shaft roatation from the motor into 2 parallel rotations Metal
Durabrand Mixer 10.jpg
11 Power cord Input Plugs into wall and provides AC current Copper and rubber
Durabrand Mixer 11.jpg
12 Beaters Output Mixes food Metal
Durabrand Mixer 12.jpg
13 Wires Input carries current from switch to motor Copper and rubber
Durabrand Mixer 13.jpg
14 Screws Structural Holds various pieces together Metal
Durabrand Mixer 14.jpg

Pro Engineer Models


DurabrandMixer ProE 1.jpg
  • Decisions Made
    • Number of teeth per length
    • Material
  • Critical Features/Dimensions
    • size of teeth
    • diameter
    • length
  • Type of Loading
    • Torque
    • Axial
  • Measures of Performance
    • Max RPM
    • Max shear stress
    • Max torque transferred


DurabrandMixer ProE 2.jpg
  • Decisions Made
    • Number of teeth/gear reduction ratio
    • Material
  • Critical Features/Dimensions
    • size of teeth
    • inner diameter
    • outer diameter
  • Type of Loading
    • Torque
    • Stress on teeth
  • Measures of Performance
    • Max RPM
    • Max shear stress on inside diameter
    • Max torque transferred


DurabrandMixer ProE 3.jpg
  • Decisions Made
    • Number of fan blades
    • Material
  • Critical Features/Dimensions
    • size of fan blades
    • diameter
    • angle of fan blades
    • shape of fan blades
  • Type of Loading
    • Torque
  • Measures of Performance
    • Max RPM
    • Produced mass flow rate of air