This is an automatic egg mixer I made for my design project for MAE 3780 at Cornell. It will automatically detect the presence of a bowl, and then when the bowl is in the correct position the user can hit a button to run a mixing cycle. This device makes mixing eggs easier than ever before! Attached is the final report I made for the class for more info.

Final report individual project .pdf
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Step 1: Create Mixing Stand

Create the mixing stand. This part can be laser cut or manually made. I have attached cad files for your reference. To make the structure you will need 2 supports, 1 back plate, and 1 top.

Step 2: Attach Whisk to Motor

Attach the whisk to the motor. To do this you will have to drill and tap two 1/4"-20 set screws into the whisk and place the output shaft of the motor in the middle. Tighten enough to keep motor and whisk securely attached but do not overtighten as whisk center is usually plastic and prone to stripping.

Step 3: Add Parts to Top Plate

Attach the motor to the positional servo. To do this I used zip ties and it worked quite well. the attach the motor/whisk/servo assembly to the top plate as shown. To do this I used strong duct tape. Finally place the LED on top as shown.

Step 4: Attach Support Structure to Base

Attach the support structure to your wood base. To do this I simply used pre-drilled two holes and used two drywall screws to attach the support to the base.

Step 5: Add the Distance Sensor

Attach the ultrasonic distance sensor to the bottom of the back plate. The positioning of this sensor will dictate the location of the bowl for mixing. The sensor should fit into the hole at the bottom of the back plate.

Step 6: Wire the Circuit

Wire the circuit. Attached is the full wiring diagram. The button can be put in a location of your choice.

Step 7: Upload Code and Edit As Needed

Upload the code to the arduino and edit servo positions, motor speed, and ultrasonic sensor distances as needed. The current values worked for my setup but will likely not work for yours.