How to Craft a Fence?

The objective of this tutorial is to craft a fence that looks like below.

objective

One way to construct this fence is to decompose it into three steps:

  1. build a row of evenly spaced vertical sticks
  2. build two long sticks running across horizontally
  3. position (1) and (2) in the way we want

Step 1

To create a vertical stick, we can use a <cube> and set its size to 5 50 5, which is 5 units along the x-axis, 50 units along the y-axis, and 5 units along the z-axis. By default, one unit is equal to one mm.

Add the <repeat> attribute to the cube tag and set its value to 10, which will give us 10 copies of this vertical stick.

However, all these 20 sticks are overlapping. To put them in a row with even spacing, we can wrap them inside a
<row> tag and set the spacing attribute to 5 to add a spacing of 5 units between every two sticks.

Step 2

The next step is to build two long sticks. Similarly, we can create a <cube> and set its `size` and `repeat` attributes to what we want. Then, to position the two sticks, we can use a <col> tag, which is like a <row> except items are lined up along the y-axis.

Step 3

Finally, we can bring the two parts together. We also want to align the two parts correctly. To do so, we group them using <g> and use the layout command center.

Exercises

Can you build these other kinds of fences?

  1. A fence with 20 posts

    exercise

  2. A fence with wider gaps between posts

    exercise

  3. A fence with three horizontal sticks

    exercise