- Day 302 - Unboxing and setting up up the printer
- Day 303 - Rotating, scaling, previewing, and printing a simple octopus model
- Day 304 - Adjusting layer height and infill to save time and money
- Day 305 - Creating a custom slicing profile to adjust raft and floor
- Day 306 - Using scaling and custom slicing to remix a model for a new purpose
Thingiverse link: http://www.thingiverse.com/thing:405528
The Penny Trap a great example of the difference between the additive nature of 3D printing (where a form is built up from nothing) and the subtractive nature of other manufacturing methods (where forms are cut out of existing blocks of material). With subtractive manufacturing it would not be possible to construct this model, because the penny cannot be inserted through the holes. However, with additive manufacturing we can add the penny during the print, forever trapping it inside!
Going further: If you want to make traps for different coins, you can find models sized for many major currencies, or even customize your own, with the Customizable Coin Trap model on Thingiverse.
Thingiverse link: http://www.thingiverse.com/thing:193941
In our GSCI 104 Introduction to 3D-printing courses at James Madison University in the 3-SPACE classroom, everyone prints a Quarter Trap on the first day. They love it:
Pro tip: Coins, especially pennies, can get really dirty. To clean up your coins, soak them in vinegar for a little while.