Introduction: Make a Decorative Christmas Tree Ornament (with Scratch ; 3D Printed)
Summary : Use SCRATCH and its pen to draw a geometrical shape. Export the drawing. Print it in 3D.
Snowflakes made with my 12-year-old students, easily adaptable to a higher level (with fractals by example).
I had this idea to introduce my beginner students to modeling (with math) for 3D printing. They were happy!
It's my first instructable ; English isn’t my first language, so please excuse any mistakes... Merci 🇫🇷 !
Step 1: Decompose the Problem Into Simpler Sub-problems.
Launch Scratch. Using the block pen down (in the pen extension), start by drawing one branch.
This branch, repeated 6 times, gives the whole snowflake.
If needed : The Scratch file is available here (official scratch website).
Then, when the dimensions and the pen size are chosen, hide the sprite and take a screenshot of the Scratch stage. Save the picture.
Step 2: Print the Image, Giving It Some Thickness, With a 3D Printer.
It's necessary to give thickness to the image.
Two solutions :
- Online, with https://imagetostl.com/ : simply upload your image, choose a height, you will get a STL file.
- With CURA (or other slicer), open the image file and choose the right dimensions in the window "Convert Image...".
⚠️ Caution : the "base" must be 0.
Print your own snowflake ! Idea : use a Glow in The Dark Filament 😉.
Step 3: Decorate Your Christmas Tree !
Participated in the
Block Code Contest