OpenSCAD - Getting Started with MakerBot

Graphics Reference

In-Depth Information

To keep the model parametric, you will also add additional variables for

cubeWidth , cubeHeight , and cubeLength . You will use these variables as

the values for the three-value array discussed earlier. In addition, note

that cubeLength is calculated by multiplying ringSize by 2. This ensures

that the the cube cutouts will always penetrate through the ring band,

regardless of the size of the ring or bracelet.

The next step is to create additional rectangular cubes and use rotate

each one by 45 degrees to have them evenly spaced around the entire

ring band.

This time I will first show you the code, then explain the new lines:

// Parametric Variables - change these to modify your ring

//

ringSize=16.24; // width of your finger

ringHeight=6; // height of ring

ringThickness=2; // thickness of ring

cubeWidth=2.5; // width of the cube cutouts

cubeHeight=3.5; // height of the cube cutouts

cubeLength=ringSize*2; // length of the cube cutouts

$fn=100; //set the resolution for the model to "high"

// subtract the inside of ring from outside

difference(){

// subtract the squares from the band

difference(){ //

// outside of ring

//

cylinder(h=ringHeight,r=(ringSize+1)/2+ringThickness,center=true);

// square shapes subtracted from the ring, rotated around the band

//

rotate([0,0,0]) //

cube([cubeLength,cubeWidth,cubeHeight],center=true); //

rotate([0,0,45])