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Evil Anchor Alien Tessellation with Box

3D model description

My daughter calls this tessellation shape Evil Anchor Alien. This was a fun summer evening project where my kids and I went from idea to sketch to model to print in just a couple hours.

Box Included with Download
A few days later we created the box. The box holds 18 tiles and is shaped to match. The cute top can be printed with dual extrusion, but a plain lid model for single extrusion is included as well. Or use single extrusion with two processes for the inside and outside models to create the outline of the Evil Anchor Alien on the lid. (I included a screenshot of a Simplify3D preview to show how this might look.)

We first experimented with creating tessellation shapes with squares of paper. My son drew some curls that inspired my daughter to create the horned alien that resembles an anchor (see photos). I took her concept and modeled a tile starting with a square and then printed them in duplication mode to quickly bring our idea to life.

My Tessellation Collection

Like Aliens? See my UFO Toy with Base

3D printing settings

Tessellation Tile
Model is approximately 75 x 73 x 2 mm. The square base is 50 x 50 mm. I printed them at 0.3 mm layer height with enough top and bottom layers that they are essentially 100% infill.

No rafts. No supports unless . . . We printed ours flipped since the kids wanted the faces to be shiny from the bed surface. So, I added some supports for the eyes because they were 1 mm above the bed.

Note: There is 0.2 mm tolerance between models. Ours fit perfectly when printed. If model is scaled smaller, likely they won't fit if you have any swelling at all with print. Larger scales likely will work, but will increase that gap too.

Box for Tessellations
Box bottom is approximately 85 x 83 x 46 mm. Lid is 88 x 86 x 16 mm. There is 0.6 mm perimeter space between the bottom and the lid in the model.

Walls, base, and top are 1 mm thick. I printed mine with 0.3 mm layer height. No rafts. No supports.

  • 3D file format: STL



Designs 96
Downloads 1223
Sales US$214

I am a high school math teacher and 3D printing hobbyist. I have been 3D printing since 2017 and enjoy making things for my classes and my own children and home in San Diego, California, USA.

I have a 3D printing sub-site See my video on YouTube and my user story written and published by Simplify3D. I design with Mathematica, CorelDRAW, Fusion 360, and Tinkercad. I love my MakerGear M3-ID and my Palette 2S Pro. I have a Monoprice Mini as well.



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