Talk about specific points where the design speed differs between 2DCAD and 3DCAD.

Today, we are going to discuss the "Talk about specific points where the design speed differs between 2DCAD and 3DCAD.The memo is called.

I am involved in the mechanical design of production equipment, processing machines, and custom-built machinery. The CAD software I use is generally determined by the convenience of each client.When working with specified CAD software, I can perform tasks using 2D CAD. However, if no specific CAD is requested, I propose designs using 3D CAD.While using CAD in this way, I sometimes feel a gap in understanding regarding CAD with customers.

ThatWhat is understanding?。The content I will discuss today is something I believe is quite important when newly designing production, processing, and dedicated machines using 3DCAD.

Particularly,

• Designing in 2D CAD is faster...
• 3DCAD takes a lot of time...
• 3DCAD is difficult
• 3DCAD is not suitable for our machine.

For those who still don't fully grasp the differences in design speed, this should be helpful practical information.

Key differences in design speed between 2D CAD and 3D CAD

I posted something like this the other day.

Understanding

Plan → Approval Drawing
2D: Can do it without taking much time.
3D: Time consuming

② Approval → Detailed Drawings/Assembly Drawings
2D: Depending on the degree
3D: Depends on the degree

③ Details/Assembly -> Parts/Drawing
2D: It takes time.
3D: Can be done quickly.

Therefore, if we plan to have a lot of time in the first half and rush in the second half, or if we can create a system to do the first half as fast as possible, 3D will be strong.

— ENGINEER48@FA Mechanical Design - Information Gathering (@48_engineer) March 24, 2020

In conclusion,The distinct features of 2D CAD and 3D CAD create differences in the time spent on each design process.That's the story.

Okay, let's get started.

For urgent 0-to-1 projects, 2D CAD is advantageous, while 3D CAD, which may require optimization even in the 0-to-1 phase, is disadvantageous.

First, let's talk about "① Plan → Approval Drawings."In this process,2D CAD can be done quickly, but 3D CAD always takes time.　That happens.

Why does this happen?

Frankly speaking,The machine is within the scope of explanation by "lines and text" between the plan and the approval drawings.Since all I want is for my work to be "approved," I'm satisfied even if it's a little rough.Considering such quality, 2D CAD can easily convey intent with a single line and an explanation, whereas 3D CAD essentially requires creating a solid object and has an environment where it's difficult to smoothly add text onto the 3D model.

In other words,3DCAD is not suitable for rough drawingsIt is.

Although there is variation depending on the "degree and technique," I believe 2D CAD is faster during the period from planning to approval.You can ignore it if the images overlap, or you can fudge it.

2D CAD requires careful work, while 3D CAD allows for semi-automatic work.

Next, I will talk about "② Approval → Details/Assembly Drawings".This stage is where we go over the details, literally. This stageThe degree of completion varies depending on the designer's discretion (how much detail they decide to go into).

Therefore, regarding CAD design speed2D CAD depends on the degree of finishing, and 3D CAD also depends on the degree of finishing.　And that's how it goes. However, this is where the design speed will start to reverse.

For example, a bill of materials.

For assembly drawings, the bill of materials can be generated in an instant with 3D CAD, depending on the settings. The CAD system can handle part counting without human intervention.

Also, transcription of purchase item model numbers, etc.auto-generation of section cuts, etc.In 2D CAD, automatic generation of partial details (enlargements) is sometimes seen, but in 3D CAD, arbitrary positional cross-sections can be accurately represented. Moreover, editing them is easy.

In other words,Once you've created the model in 3D CAD, everything else is just a matter of flavor. Properties that have been added will stick around until you remove them. This effect is immense.The burden of the checking process is greatly reduced.

3DCAD that boasts overwhelming speed in the latter half when using its features to the fullest

Finally, the process moves from details and assembly drawings to part drawings and drawing issuance. Here2DCAD takes time, but 3DCAD can be done in less time by effectively using its functions.It's that kind of relationship.

Among them,The speed for extracting parts from an assembly drawing and creating a blueprint is overwhelming.And mistakes will decrease.This is something, needless to say, that many people already know.Reference Article:A story about how I thought I could design a machine there by myself because 3D CAD drastically reduces design errors.

How to create a schedule that maximizes the use of 3D CAD

Now, this is where it gets important,From the content so far2DCAD is strong in the first half of design, and 3DCAD is strong in the latter half onwards.I believe you were able to understand that.

Therefore,If the CAD is different, some adjustments will be necessary for the schedule.It is.

When the deliverables and the total time spent are the same for both 2D CAD and 3D CAD, it means that 3D CAD requires scheduling that allows for more time to be spent in the initial phase.Conversely, if you're going to do mechanical work in 2D CAD that you previously did in 3D CAD, you should schedule more time for the latter half of the project.

Finally.

Like this, both 2D CAD and 3D CAD have their own pros and cons, but when I work with 3D CAD recently, what I consciously focus on is

• Book the first half of the schedule
• __OPENROUTER_FAILED__

These two.

Perhaps, if this is satisfied as a result, 3D CAD will be the strongest.In the endI think there are several approaches that satisfy both.So, I feel like I'm trying them out now.Some parts are already quite finished, but the specific methods are a bit outside the scope of this discussion, so I'd like to write an article about them sometime.

That's it.