Designing PancakeBot 3D Printed Extensions – SCOPES Digital Fabrication

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Author

Miguel Valenzuela
Miguel Valenzuela
Maker
Miguel Valenzuela is a California Registered Civil Engineer, maker, and the inventor of PancakeBot.  Miguel currently runs the PancakeBot Innovation Center and Makerspace in Vestfossen Norway, a space dedicated to art and cultural centric innovation with a tasty twist. Miguel’s… Read More

Summary

Hacking machines to either improve, or change the original purpose of the machine can be rewarding and gives the user control over their machine as well as what they can do with it.

PancakeBot 1.0 has a large surface printing area, and some times, you may want to increase your output.

The best way to do this is to add an additional bottle.

With this lesson you will learn and accomplish the following:

  1. Modify the pneumatic system to split the air flow in two.
  2. 3D print, test, and observe two different 3D printed extensions
  3. Design your own 3D printed extension arm to address any short comings in the two proposed designs.

What You'll Need

  1. PancakeBot
  2. Vermierscaliper for measuring (metric preferred)
  3. Anything to write on
  4. Writing Utensil, (pencil, pen, etc.)
  5. Parametric Modeling software such as Onshape, TinkerCAD etc.
  6. 3D FDM Printer
  7. Pneumatic Tee from either LEGO or Fab Foundation (Options for printing your own pneumatic Tee are included)

 

SAFETY FIRST

When operating the PancakeBot, there are few precautions one must take.

 

  1. Keep lose hair or clothes away from the belts while the PancakeBot is moving. The belts and motors are low powered but may pinch fingers during movement if caught between the belt and the drive motors.
  2. Always assume the griddle is hot. The griddle will remain hot even after it is unplugged and turned off.
  3. Take care when removing the thermostat heating probe. The metal probe should always assumed to be hot.
  4. Always unplug the electric cord from the power outlet after use.
  5. The griddle may warp slightly during extended usage. Drop the temperature down on the thermostat should this occur.
  6. The griddles for PancakeBot are voltage specific and there are different voltages for US(110V) and EU(220V) approved Griddles. Check the bottom of the griddle to make sure you are using the right voltage.
  7. Always assume a risk of fire when using any cooking appliance. Discuss any fire risks with the appropriate safety personnel.
  8. Check the temperatures of the pancakes to insure they are safe before eating them. Steam may get trapped inside air pockets in the batter.

 

The Instructions

Reviewing proposed designs

While there are many ways to solve a problem, studying other attempted solutions can give you an insight to what others have tried, what works, and what doesn't work. In this step you will look at two different designs for the extension arm initially proposed by the inventor of PancakeBot.