breakable Easter egg with cracks

This work is an exploratory experiment on breakable design. Cracks with a width of less than 0.2mm are reserved on the egg to control the fragments' shape when broken, simulating a realistic eggshell-breaking effect. The uploaded model includes a breakable outer shell and an internal container for placing gifts. Printing breakpoints are set so that you can manually add gifts at the preset pause points (the height of the items placed should not exceed the height of the model at the breakpoint) or freely set the pause printing time to fit the size of the gift.

 

Video1: Demonstration of breaking the egg and retrieving the gift

 

Figure1: Demonstration of adding items to the egg at the printing pause point

 

 

Below is the experimental process for creating the egg:

The egg was created using Rhino, with the crack part generated by Grasshopper. The uploaded print example is a result with relatively perfect parameters. In the current algorithm, too many or too few cracks will cause some defects in the fragments of the broken egg. The algorithm is still being adjusted. Once the model with different crack densities can be perfectly generated, I will upload the complete Rhino .3dm and .gh files.

 

Figure2: Using Grasshopper parameter adjustment to control the density of the eggshell cracks

 

Figure3: The effect of breaking eggs with different crack densities (from left to right, the density decreases), the middle result is relatively perfect

 

The Easter egg is the first attempt at breakable design. This design experiment aims to use program tools to give more models "breakable" properties, adding more entertainment to 3D printing.

 

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Figure4: Breakable block experiment