This document is about the introduction to 3D print with Creality Ender 3 Pro 3D Printer in assignment 2.

In the first part of the document, the first trial of 3D print is described.

In the second part, the first production of a stackable snack bowl is described.

Step 1: A First Trial 3D Prints

First, when I got a printer, I tried to 3D print test objects.

As you can see in the left figure, "cat-3.5H.gcode" was successfully printed out. It took around 5 hours.

The right figure is failed test object of "dog-2.5H.gcode". Because the 3D print material line was broken on the way to print, I stopped the 3D print.

For the troubleshooting, I changed a different material and restart the 3D print again.

Step 2: The Production of Stackable Snack Bowl

Next, I created a stackable snack bowl using the example code provided by Jennifer.

Left figure, I drew a line on the Rhino part. The line will be the shape of the bowl.

The not closed line is input as a curve to "RevSrf", rotates, and creates a shape of a bowl.

In the python code, it is the same as the example code of Creating a Stack of Transformed Objects.

The output is geometry shape. The output shape was extruded along a vector in "Extr" and performed a solid union in "SUnion" in order to output STL file*.

*To output STL file, I selected the 3D object in Rhino and select the Export from File on the menu bar.

Step 3: Check the Output and Stackable

From the program code and Grasshopper process, the output of the model object is like the left figure.

Next, I checked if stacking this bowl works or not.

I changed parameters like the right figure, duplicated the bowl, and from the Rhino, I performed the "BooleanUnion."

From the BooleanUnion, when I stacked the stacked object was stacked without changing the shape.

Therefore, it means that the bowl shape is able to stack.

Step 4: STL File and Slice in 3D Cura

The output STL file is shown left figure.

When I import the STL file in slicing software 3D Cura, I found the object size was pretty small to use.

Therefore, I used the function of size change, I expanded the object to 350% from the original size.

If I sliced one bowl can be printed out in 2 hours and 47 minutes.

The original small size bowl can be printed out in 9 minutes.

I need 3 of the bowl to stack. Therefore, I duplicated, sliced again and checked the time.

The duration of the printing time showed 8 hours and 34 minutes.

Step 5: 3D Print Process

Step 6: Done!

The actual duration of 3D print was 8 hours and 7 minutes shown in the display on the 3D printer.

At this time, for easy washing, I did not put any ornament on the bowls.

These bowls work very well as a snack bowl.

When I stacked, these were stacked very well!!