Looped Laser Turtles

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Spiraling Hexagon

This design was a fairly simple modification of the square spiral produced/shown in class. With a change from 91 degrees to 61 degrees the spiraling square is made into a spiraling hexagon.

Spiraling Hexagon

This design was not chose for production do to the vast majority of the code having been completed in demonstration and readily available in alternative resources. A small step in Turtle-processing confidence.

Spiraling Hexagon Output

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TriHex Optical Illusion

This design was co-inspired from the honeycomb loop patterning exercise in class and the sub-units that compose a hexagon--triangle and rhombus. Properly textured and positioned rhombi imply depth inside a hexagon.

Function to draw single hexagon

Loops for making row types 1, type 2, and the whole pattern

hexagons produced in the code above are a collection of three rhombi oriented around the center. The pattern runs horizontally in two different type rows, governed by slightly different sequences.

Hexagon Pattern Output

This why by far the most frustrating design to cut. Errors in memory on how to properly etch an shape (not just a line). Countless re-cuts for select rhombus to be removed, to finally realize the print width needs to be set to 'hairline'. Thus is the nature of learning.

The pattern came out as expected after getting more well antiquated with the laser cutter. It is crisp on wood but would be more astonishing on acrylic.

Cut Hexagon Pattern

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Bounce Walker Bounce

The engraved fabrication is a random walker function inspired by the first chapter of The Nature of Code by Daniel Shiffman, chapter 0 in true coder form. Example 0.1 shows a tradition random walker created with p5.js.

Set up and PDF capture functions not pictured

The turtle goes forward a somewhat random distance then takes a 90 degree turn, creating rectangle like shapes. Parameters are set about the canvas limits to keep the turtle form leaving the canvas by 'bouncing' off the edge at an angle. The checks and path adjustments work reasonably well. Although the bounce could be operate a bit more smoothly.

Random Walker with Bounce

The laser cut came out as expected and was straight forward to fabricate. Especially given it was the first design produced. The design is best served in wood over acrylic.

Laser Cut Walker