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Filleting sharp corners

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Manufacturing Process with Autodesk Fusion 360

4.5 (105 notes) | 2.6K étudiants inscrits

Cours 5 de 5 dans CAD and Digital Manufacturing Spécialisation

Designing a product is only part of the process. Now, can that product be manufactured? A CNC machinist works with computer numeric controlled (CNC) machines from generating the machine code to machine setup and run. Understanding both CAD and CAM is essential to this portion of a design. Even if you are not the end user who programs a machine, it is invaluable to know how it’s done. This knowledge translates directly to part design by helping make intelligent design decisions with manufacturing in mind. This course introduces you to the integrated CAD/CAM approach behind Fusion 360 CAD/CAM as well as 3D printed design setup and finally assembly and testing. All stages of product design in one place! After completing this course, you will be able to: • Explain the Fusion 360 integrated CAD/CAM manufacturing workflow. • Summarize the trends that are influencing the future of manufacturing. • Demonstrate knowledge and skills in foundational concepts of Fusion 360 CAD/CAM software. • Set up a Flight Controller. • Assemble a quadcopter. • Fly the final design.

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4.5 (105 notes)

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SP

Jan 07, 2019

Best learning material. Must for every Mechanical Engineering Student.

NN

Aug 28, 2019

Great information and knowledge of important tools

À partir de la leçon

Waterjet Program

Most retail production quad and multirotor chassis are made of flat plates of carbon fiber or injection molded plastic. Flat plates of composite materials are often cut on a machine that uses high pressure water and abrasives. This allows you to cut almost any material without introducing heat, which could affect its structure and properties. In this week's lessons, we'll explore how to setup and validate a 2D waterjet cut on a quadcopter chassis.

Starting an FPV drone chassis design6:24

FPV drone chassis layout6:01

Creating the base solid of a drone chassis8:37

Sketching the mass removal areas5:56

Mass removal from chassis9:22

Filleting sharp corners3:31

Enseigné par

Autodesk

Transcription

In this lesson, we'll be filleting sharp corners. After completing this lesson, you'll be able to use Rule Fillet and use Fillet. Let's carry on with the file from our previous example. First, I want to rename "Sketch 3," and I'm going to call this "Frame Cutouts." The next thing that we want to do is go back in and round off these corners. So, we're going to use a feature from the modified drop-down called "Rule Fillet." We're going to "Input Features or Faces," and we're going to select the last extrude cut that we did to remove all that internal material. We're going to place a "Radius" of "two millimeters," and we're going to change the "Topology Option" to "All Fillets." Now, all fillets will be the internal edges, and you'll notice it gave us a warning. Now, the warning is actually in relation to this tight corner right here. This is something that we're going to have to go back and fix manually, but you can see that it added fillets on all of the other square corners. It took care of these edges, and it took care of these edges around here, but notice it didn't take care of any of the external edges. And the reason this is is because we're using a feature; we're only putting the feature that cut these originally. If we select the original extrude that we could also take care of these external ones, but we're going to come back and actually use a different radius value. All of the faces that produced problems, the ones that threw up the warning, are highlighted in blue. Now, some of these are fine, like the small holes in the slots, they don't need fillets obviously, but again, these areas we will have to address. So, we're going to go ahead and say "OK." We're going to hit "F" on the keyboard to manually create a fillet, and we're going to start to select these vertical edges around where our power distribution board and flight controller are going to mount. Now, one way that we could have approach this is by taking a different approach to the geometry itself, not leaving such a sharp corner there. I'm going to say "two millimeters." And notice that it's actually able to fillet that just fine. The reason it originally had some issues is because of the geometry. Again, it was causing issues there. And I might also want to change this and do a smaller fillet in that corner, like a one millimeter. We're going to go ahead and say "OK" with "one millimeter" there. Lastly, we want to go ahead and take care of these external edges, so we have ones on either side. Now, remember the end goal here is to do a water jet or a laser-cut type CNC tool path. So, there's no point in us trying to round off the upper or lower edges because that's not something that we can do with a water jet. These are only 2D cuts. So on these external edges, I'm going to use a radius value. It's quite a bit larger and just say "10 millimeters." We're going to say "OK", go back to a top view, and take a look at the chassis. Now, depending on the amount of mass that you're going to be carrying, depending on a few other factors, we might need to increase the strength here. But the entire goal is for us to learn how to create a parametric model, one that has features that can be controlled by parameters such as the original sketch, and then, we want to take that information, and we want to create a CNC program. So at this stage, just go ahead and save our file so that we can move onto the next step of creating a program.

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