Designing A Machine Part 设计机器部分
In the previous lesson you learnt how to create compound shapes by adding and subtracting primitive shapes in your CAD software. In this lesson you will go a step further and recreate an entire machine part at the correct scale using CAD. The first thing you will want to do is to refer back to your drawing of a “machine part“ that you completed in an earlier lesson. You will use this drawing as a guide as you recreate this machine part on the computer. In this project you will want to make sure that you use a number of tools such as the “scale“, “align“, and “join” tools which will help you to accurately recreate this drawing.
在上一节课中学习了如何通过在 CAD 软件中添加和除去原始形状来创建复合形状。在本课中,将更进一步使用 CAD 按照比例重新创建整个机器部分。首先回顾一下上节课中完成的”机器部分”的绘图,以此作为参考,通过使用多种工具,如”比例”、”对齐”和”合并”等,来重新设计绘图。
Step by Step Process 详细步骤
It is usually recommended to start by creating the largest parts first and then work your way downwards, completing the small finishing details last.
通常建议先创建最大的部分,然后再是小的部分。
![](https://i0.wp.com/sino-exchange.org/wp-content/uploads/2021/08/Widget_Steps_01.png?resize=720%2C446&ssl=1)
Step 1
第 1 步
Insert a cylinder.
插入一个圆柱。
![](https://i0.wp.com/sino-exchange.org/wp-content/uploads/2021/08/Widget_Steps_02.png?resize=720%2C446&ssl=1)
Step 2
第 2 步
Then resize the cylinder.
然后调整圆柱大小。
![](https://i0.wp.com/sino-exchange.org/wp-content/uploads/2021/08/Widget_Steps_03.png?resize=720%2C446&ssl=1)
Step 3
第 3 步
Add a cube.
添加一个正方体。
![](https://i0.wp.com/sino-exchange.org/wp-content/uploads/2021/08/Widget_Steps_04.png?resize=720%2C446&ssl=1)
Step 4
第 4 步
Then resize and align the cube to create the overall shape of the machine part.
然后调整正方体大小并调整,以创建机器部分的整体形状。
![](https://i0.wp.com/sino-exchange.org/wp-content/uploads/2021/08/Widget_Steps_05.png?resize=720%2C446&ssl=1)
Step 5
第 5 步
Create a transparent cylinder. Resize the cylinder and place it in the centre of the object.
创建透明圆柱体。调整圆柱体大小,并将其放在物体的中心。
![](https://i0.wp.com/sino-exchange.org/wp-content/uploads/2021/08/Widget_Steps_06.png?resize=720%2C446&ssl=1)
Step 6
第 6 步
Check the alignment of each object to make sure that each object is perfectly aligned.
检查确保每个对象完全对齐。
![](https://i0.wp.com/sino-exchange.org/wp-content/uploads/2021/08/Widget_Steps_09.png?resize=720%2C446&ssl=1)
Step 7
第 7 步
Group the shapes together.
将形状组合在一起。
![](https://i0.wp.com/sino-exchange.org/wp-content/uploads/2021/08/Widget_Steps_10.png?resize=720%2C446&ssl=1)
Step 8
第 7 步
Then create a transparent rectangular prism and place it accordingly.
然后创建一个透明的矩形棱镜,并相应地放置它。
![](https://i0.wp.com/sino-exchange.org/wp-content/uploads/2021/08/Widget_Steps_11.png?resize=720%2C446&ssl=1)
Step 9
第 9 步
Check the alignment of each object to make sure that the rectangular prism intersect the main shape properly.
检查每个物体是否对齐,以确保矩形棱镜正确相交主体形状。
![](https://i0.wp.com/sino-exchange.org/wp-content/uploads/2021/08/Widget_Steps_13.png?resize=720%2C446&ssl=1)
Step 10
第 10 步
Group the shapes together to complete the main bracket for this machine part.
将形状组合在一起,完成此机器部分的主支架。
![](https://i0.wp.com/sino-exchange.org/wp-content/uploads/2021/08/Widget_Steps_14.png?resize=720%2C446&ssl=1)
Step 11
第 11 步
Create another cylinder.
创建另一个圆柱体。
![](https://i0.wp.com/sino-exchange.org/wp-content/uploads/2021/08/Widget_Steps_15.png?resize=720%2C446&ssl=1)
Step 12
第 12 步
Then rotate the cylinder.
然后旋转圆柱体。
![](https://i0.wp.com/sino-exchange.org/wp-content/uploads/2021/08/Widget_Steps_16-1.png?resize=720%2C446&ssl=1)
Step 13
第 13 步
Resize and then align the cylinder to centre of the main bracket, and make sure that the two objects touch.
调整大小,然后将圆柱体对齐到主支架的中心,并确保两个物体接触。
![](https://i0.wp.com/sino-exchange.org/wp-content/uploads/2021/08/Widget_Steps_17.png?resize=720%2C446&ssl=1)
Step 14
第 14 步
The last step will be to add a “text” layer.
最后一步是添加”文本”层。
![](https://i0.wp.com/sino-exchange.org/wp-content/uploads/2021/08/Widget_Steps_18.png?resize=720%2C446&ssl=1)
Step 15
第 15 步
Use this text layer to include your name on the front side of your machine part.
在文本层写上你的姓名并放在机器前面。
![](https://i0.wp.com/sino-exchange.org/wp-content/uploads/2021/08/Widget_Steps_18.png?resize=720%2C446&ssl=1)
Step 16
第 16 步
Group all of the shapes together one more time to complete your machine part.
将所有形状再组合一次,完成机器部分。
![](https://i0.wp.com/sino-exchange.org/wp-content/uploads/2021/08/Widget_steps_web.gif?resize=720%2C446&ssl=1)
Review & Check
审核和检查
Check your project, and make sure that everything is properly aligned.
最终检查,并确保一切准确对齐。