tinkerCAD案例:24. Ruler - Measuring Lengths 标尺 -量勺

news/2024/6/17 4:45:39

tinkerCAD案例:24. Ruler - Measuring Lengths 标尺 - 测量长度

Project Overview: 项目概况:

A machine shop, where any idea can become a reality, can cost millions and million of dollars. Still, the most important tool in the shop is the humble caliper…which costs as little as three bucks.

Moving ideas between computers and the real world (and back and forth) takes understanding the relationships between physical objects…measurements! Design and measurements go hand and hand.

So let’s make the tools to help us make more tools!


Welcome to the Measurements project! This is a project building tools to measure the world! It stands to reason, then, that we’d start with the world’s most recognized measuring tool, the ruler.

A ruler is an instrument used to measure distances or to rule (draw) straight lines. The ruler has a straight edge, which contains calibrated lines, corresponding to a standard unit of measure such as inches or centimeters.

The ruler we will be making is 10cm long with demarcations for every millimeter and centimeter measure.
我们将制作的尺子长 10 厘米,每毫米和厘米测量都有分界线。

This step will create the basic box for the primary shape of the ruler.

Instructions 指示



  1. Drag a box to the Workplane.

  2. Resize it to 100mm along the X axis, 20mm along the Y axis, and 5mm along the Z axis
    将其大小调整为 沿 X 轴 100mm、沿 Y 轴调整为 20mm、沿 Z 轴调整为 5mm

  3. Continue to the next step.

  4. Now let’s create the rounded edge for the ruler by adding a cylinder on a side of the rectangle.

    To assist in positioning this cylinder, we’ll need to change the distance of the Snap grid. We’ll use .5 mm instead of 1 mm.
    为了帮助定位此圆柱体,我们需要更改捕捉网格的距离。我们将使用 .5 毫米而不是 1 毫米。

    Instructions 指示



  1. Change the snap grid to 0.5mm.
    将捕捉网格更改为 0.5 毫米。

  2. Drag out a cylinder to the Workplane and resize it so that it is 5mm in diameter and 100mm along the Z axis.
    将圆柱体拖出到工作平面上并调整其大小,使其直径为 5mm,沿 Z 轴为 100mm。

  3. Rotate the cylinder 90° about the Y axis and then push “D” to drop it to the Workplane.
    将圆柱体绕 Y 轴旋转 90°,然后按“D”将其放到工作平面上。

  4. Align the cylinder to the box so that these objects share the lowest limits on all axes.

  5. Deselect the box so you can nudge the cylinder -1.5mm along the Y axis. It should protrude 1.5mm out of the box.
    取消选择该框,以便沿 Y 轴轻推圆柱体 -1.5mm。它应该从盒子里伸出 1.5 毫米。

  6. Select all of the objects and group them.

  7. Continue to the next step.

  8. This step will create the small tick marks, or demarcations, for measuring millimeters and centimeters.

    Instructions 指示



  1. Drag a green roof to the Workplane and rotate it 90° about the X axis so that the point is facing towards you.
    将绿色屋顶拖动到工作平面上,然后绕 X 轴旋转 90°,使该点朝向您。

  2. Resize the shape so that it is 5mm along the Y axis, 1mm along the X axis, and 2.5mm along the Z axis.
    调整形状大小,使其沿 Y 轴为 5mm,沿 X 轴为 1mm,沿 Z 轴为 2.5mm。

  3. Duplicate the shape and use the arrow keys to nudge the shape to the right 1mm.
    复制形状并使用箭头键将形状向右微移 1 毫米。

  4. Duplicate the shape 10 times so that there are 11 total.
    复制形状 10 次,总共有 11 个。

  5. Change the size of the 1st and 11th mark to be 7mm along the Y axis (to create the demarcation for the centimeter intervals).
    将第 1 个和第 11 个标记的大小更改为沿 Y 轴 7mm(以创建厘米间隔的分界线)。

  6. Use the inspector to turn the tick marks into holes and group them.

  7. Continue to the next step.

Measuring Cup - Measuring Volumes 量杯 - 量体积

Lesson Overview: 课程概述:

Now we’re going to make a cup!

In this lesson, we’re going to learn how to make a tool for measuring volume!

Volume is how much space an object takes up. An object that has length and width and height is taking up volume…like the objects in Tinkercad!

However, volume measures are often for materials that don’t have a uniform shape like liquids, powders, grains, and pebbles.


  1. Continue to the next step.

  2. We are going to start using a cylindrical volume of 20ml as an example. In Steps 7 and 8, you have the tools to create the volume of your choice.
    我们将开始使用 20ml 的圆柱体积作为示例。在步骤 7 和 8 中,您可以使用创建所选体积的工具。

    Work with your class to create a set of volumes!

    Instructions 指示



  1. Drag out a cylinder to the Workplane.

  2. Size it as per your desired calculations, and make it a hole. My 20ml volume will be a cylinder that is 30mm in diameter and 30mm tall along the Z axis.
    根据您想要的计算调整它的大小,并使其成为一个空心。我的 20 毫升体积将是一个直径 30 毫米、沿 Z 轴高 30 毫米的圆柱体。

  3. Continue to the next step.

  4. We’re going to print the cup facing down to make 3D printing the handle easier.

    In this step, we are creating the cup around our volume.

    Instructions 指示



  1. Duplicate your shape and make it solid again.

  2. Grow the object by 6mm along the X and Y axes and 3mm along the Z axis.
    沿 X 轴和 Y 轴将对象增大 6 毫米,沿 Z 轴增大 3 毫米。

  3. Center the two cylinders along their X and Y axes but to their lower Z axis limits.
    将两个圆柱体沿其 X 轴和 Y 轴居中,但使其 Z 轴下限居中。

  4. Continue to the next step.

  5. Now we’ll create a simple handle that has enough room for some text describing the volume.

    Instructions 指示



  1. Drag out a Round Roof and align it so that it extends out from the center off the cylinders.

  2. Grow the round roof until it extends roughly 4cm from the side of the cylinder. Because every volume is different, the length of this object will be different for everyone.
    增大圆形屋顶,直到它从圆柱体侧面延伸约 4 厘米。因为每个容器都是不同的,所以这个对象的长度对于每个人来说都是不同的。

  3. Shrink the round rood to 5mm tall along the Z axis.
    沿 Z 轴将圆形转子缩小到 5 毫米高。

  4. Drag out a Hemisphere, shrink it to 5mm tall along the Z axis, and align it to the end of the round roof so that it creates a smooth tangent.
    拖出一个半球,沿 Z 轴将其缩小到 5 毫米高,并将其对齐到圆形屋顶的末端,使其形成平滑的切线。

  5. Continue to the next step.

  6. Create the Label 创建标签

    A measuring instrument is no good if it’s not labeled! So we’re going to do that, now.

    Tinkercad has number and letter shapes, but it only has upper case letters. Why is this important? Because ML doesn’t mean Milliliters, it means MEGALITERS! We don’t have the time to make a measuring cup that big!

    So to make a label with lowercase letters, we’re going to use the Text Shape Generator in the Shapes menu.

    Instructions 指示



  1. Drag out the Text Shape Generator under the Tinkercad collection.
    拖出 Tinkercad 集合下的 Text Shape Generator。

  2. Choose the font “Arimo” and type out the volume you have chosen.

  3. Mirror the text so it can be read from the bottom.

  4. Continue to the next step.

  5. Now we just need to put the label on our handle!

    Instructions 指示



  1. Proportionally scale the text until it is 10mm tall along the Y axis and then shrink the text along the Z axis until it is 1mm tall.
    按比例缩放文本,直到它沿 Y 轴高 10 毫米,然后沿 Z 轴缩小文本,直到它有 1 毫米高。

  2. Align the text to the handle’s center along the Y axis and nudge the text in to position along the X axis.
    沿 Y 轴将文本与手柄的中心对齐,并将文本微移到沿 X 轴的位置。

  3. Select all the objects and group them.

  4. Continue to the next step.

  5. Like with a cube, we calculate the volume of a cylinder by multiplying the area of a side by its height. Finding the volume of a cylinder is challenging because its sides are circles. Fortunately, thousands of years ago, we found a number that helps us, and that number is ‘pi’ or ‘π’.

    Pi is the ratio between the diameter of a circle and its circumference. The formula for the area of a circle is:
    Pi 是圆的直径与其周长之间的比率。圆的面积公式为:

    Area=pid^2/4 面积=pid^2/4

    If we make the height and the diameter the same, this is easy to solve, we simply raise the square to a cube:

    Volume=pid^3/4 体积=pid^3/4

    But what if we know the volume and want to figure out the diameter and height? We solve for diameter:

    d=∛((4Volume)/pi) d=∛((4体积)/pi)

    So if you want a cylindrical volume of 1L (or 1000cm3), your diameter and height should be:
    因此,如果您想要 1 升(或 1000cm3)的圆柱形容积,您的直径和高度应为:

    ~10.9cm=∛((41000)/pi) ~10.9厘米=∛((41000)/圆周率)

    Instructions 指示

    1. Continue to the next step.





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