How to determine the drawing scale in CAD

When I draw diagrams, I do it at a 1:1 scale, and then I use the drawing frame I’ve created (of course, in accordance with standard specifications) to increase the scale. This involves deciding on the size of the drawing paper and the scale used. Generally, I consider what type of diagram it is: if it’s an assembly diagram, I use A1 paper; for component or part diagrams, I adjust the size of the drawing frame based on the actual size of the object, and then check the size of the text. The text shouldn’t be too large relative to the drawing, nor should it be too small

By the way, how do you call up the initial frame and set the scale? I’m a beginner and not very clear on these aspects :)

Determine the drawing scale and paper size before starting to draw. I’m not sure what your major is; each major has its own **standard specifications**, and the drawing scale and paper size must comply with these standards. For example, in chemical engineering design, if equipment layout drawings are to be produced, the paper size used is A1; it is not advisable to increase the length or width of the drawings. The scale used is 1:50, 1:100, or 1:200, depending on the density of the equipment arranged in the facility. For example, based on the details in the drawings, we have decided to produce a 1:100 scale drawing of A1. So, calculate the text height: if the text on the final drawing is to be 5 mm high, then the height to be used when drawing it is 5*100=500 mm. Things like this: arrows, text, annotations, and so on – everything is taken into account. Then draw it at a 1:1 scale; for those that require a different scale, draw them according to that scale, such as text that is 500 mm high. After drawing is completed, insert a standard A1 drawing frame, enlarge the frame by 100 times, place it over the drawing, and print it at a 1:1 scale. Okay.

:) Brother upstairs, thanks!

Oh, then I’ll definitely take a look at the drawing standards. Thank you

Regarding the font size, you need to consider the scale at which your image frame has been drawn; then multiply the desired font size (for example, a height of 4) by the scaling factor of the image frame. Enter the resulting value in the height field in the properties. As for lines, you need to define their color, and you can choose whatever thickness the line should have when printed. Give it a try

It is generally divided in a 1:1 ratio. Printing paper has its own printing scale, and scaling is done accordingly using the block scaling command; what was said on the 4th floor explains this best

The control of font size has been explained clearly on the fourth floor. The line thickness can be controlled by layers or print style sheets. 1. Layer control: Set the line width directly ； 2. Set the print style sheet: Set the line width by color. You need to set up the layers before drawing; similar elements can be placed on the same layer. Setting up the layers properly is very helpful for drawing.

Try setting the text and annotation styles

Thank you, brother on the fourth floor; this problem has been bothering me for a long time as well

Just change the global scale in the annotation style to make it the same, and then reset it when generating the output

I used to also estimate the actual size before creating the drawing; I’ve learned from it now.

I’ve learned it.* This problem has also troubled me for a long time. . I understand a bit now.