Part Modeling - Create a Shell Feature
Summary
TLDRThis video provides a tutorial on preparing for the Autodesk Fusion 360 Certified User Exam by focusing on creating a shell feature in Fusion 360. The instructor demonstrates how to create and shell a solid object, explaining key operations such as removing faces and adjusting wall thicknesses. The video covers practical applications like 3D printing and how to use the section analysis tool to inspect the shell. The tutorial concludes by emphasizing the importance of mastering these tasks for exam success and encourages viewers to continue studying and practicing.
Takeaways
- 🔧 The video focuses on the Autodesk Fusion 360 Certified User Exam, covering specific exam objectives.
- 📐 The feature discussed in this video is creating a shell feature in Fusion 360, a common part modeling technique.
- 🚀 To create a shell, the user begins by creating a sketch of a cylinder, which is extruded to a desired height (e.g., 4 inches).
- ✂️ The shell command allows users to remove selected faces (like the top face of a cylinder) to create hollow structures, such as a cup.
- ⚙️ The shell thickness can be adjusted for both inside and outside walls, with an example of 0.125 inches for the thickness of the shell.
- 🛠️ Section analysis is used to visualize the shell and assess the thickness of the walls inside the model.
- 🔄 Users can undo or delete the shell feature to return the object to its original solid form and try different shell settings.
- 🔍 Another method is to shell the entire body without removing any faces, which results in a hollow object without altering the outer appearance.
- 📏 Section analysis can also be applied to measure dimensions like the distance from the center of the part to the edge.
- 📚 The video encourages viewers to keep practicing these techniques for the Autodesk Fusion 360 Certified User (ACU) Exam.
Q & A
What is the focus of the video in relation to the Autodesk Fusion 360 Certified User Exam?
-The video focuses on preparing for the Autodesk Fusion 360 Certified User Exam by discussing the shell feature, which is part of the exam's part modeling section.
How do you create a basic 3D model for shelling in Fusion 360?
-To create a basic 3D model, start by creating a sketch of a cylinder (5 inches in diameter), extrude it to about 4 inches, and then use the shell feature to hollow it out.
What does the shell feature in Fusion 360 do?
-The shell feature in Fusion 360 hollows out a solid body by removing one or more faces and creating a uniform wall thickness for the remaining part.
How can you apply the shell feature to create a container-like shape?
-To create a container shape, select the top face of the cylinder, apply the shell feature, and set the inside wall thickness (e.g., 0.125 inches). This removes the top face and hollows out the rest of the object.
What is the difference between setting an inside thickness and an outside thickness when using the shell feature?
-Setting an inside thickness reduces the material from the inside of the object, while setting an outside thickness removes material from the outer surface. You can also combine both for custom wall thickness.
What is the purpose of the section analysis tool in Fusion 360?
-The section analysis tool allows you to cut through the object to visualize and inspect the internal structure of a model, including the effects of the shell feature.
What is the benefit of using the shell feature for 3D printing purposes?
-The shell feature can reduce print time and material usage by hollowing out the object, though it may result in a less structurally strong model.
How do you shell an entire body without removing any faces in Fusion 360?
-To shell an entire body without removing faces, simply select the body instead of individual faces, and set the desired wall thickness. The object will be hollow inside, but its outer shape remains intact.
What happens when you use the shell feature but don’t remove the top face of the cylinder?
-If you don’t remove the top face, the shell feature will hollow out the interior of the cylinder, but the top surface will remain, creating a completely closed hollow object.
Why is the shell feature important for the Autodesk Fusion 360 Certified User Exam?
-The shell feature is important because it is frequently tested in the exam, requiring candidates to demonstrate their ability to hollow out objects, use section analysis, and measure dimensions of the shelled part.
Outlines
🔧 Overview of Autodesk Fusion 360 Shell Feature
The video introduces an objective from the Autodesk Fusion 360 Certified User Exam, specifically focusing on creating a shell feature. The process starts with creating a simple cylinder using the sketch and extrusion tools. Afterward, the shell feature is introduced through the 'Modify' panel, demonstrating how to remove a face to create a hollow object (e.g., a cup). The thickness of the walls can be adjusted, with examples of different thicknesses like 0.125 and 0.25 inches. The visual differences between inside and outside shell thickness adjustments are explained, showing how users can customize their models.
📏 Using Section Analysis for Precision
The creator demonstrates how to apply the section analysis tool under the 'Inspect' panel. This tool allows users to view the internal shell structure, ensuring the desired thickness is applied throughout the object. In this case, a thickness of 0.125 inches is set. The section analysis helps to visualize the part's cross-section, aiding in confirming that the shelling process was done correctly. After reviewing, the shell is deleted, and the command is run again, showing an alternative method to hollow out an object without removing the top face, making it useful for 3D printing.
🚀 Advantages of Shelling for 3D Printing
The video emphasizes the benefits of shelling for 3D printing purposes, particularly reducing print time and material usage by hollowing out objects. The section analysis is applied again to demonstrate how the body looks internally after hollowing without removing the faces. This technique can be useful when a hollow body is desired without compromising too much structural strength. The creator also points out how section analysis helps verify the changes made to the model.
📐 Exam Tip: Shell and Section Analysis
The creator explains that the Autodesk Fusion 360 exam might include tasks that involve shelling an object and using section analysis to measure dimensions. An example is provided where users may be required to measure from the center of the part to its edge using section analysis, showcasing the practical application of this feature in exam scenarios.
📚 Wrapping Up the Shell Feature Overview
The video concludes with a summary of the shell feature and its importance for the Autodesk Fusion 360 exam. Viewers are encouraged to practice using the shell and section analysis features, review other exam objectives, and reach out for help if needed. The creator encourages continuous preparation for success on the first exam attempt.
Mindmap
Keywords
💡Fusion 360
💡Shell Feature
💡Sketch
💡Extrude
💡Modify Panel
💡Wall Thickness
💡Section Analysis
💡3D Printing
💡Face
💡ACU Exam
Highlights
Introduction to Autodesk Fusion 360 Certified User Exam and overview of shell feature preparation.
Creation of a sketch and extrusion of a cylinder to demonstrate the shell command.
Demonstration of creating a shell feature by removing the top face of a cylinder to make a cup-like structure.
Explanation of setting wall thicknesses (inside, outside, and both) and their impact on the final model.
Example of changing the thickness to 0.25 inches and observing the changes in the model.
Using section analysis to inspect the shell and verify thickness changes in the model.
How to delete the shell feature and return to the original solid model.
Introduction of an alternative method for creating a hollow cylinder without removing faces.
Benefits of hollow models for 3D printing, including faster print times and material savings.
Setting the shell thickness for the entire body and using section analysis to examine the interior.
Clarification on why the shell command might not visually change the exterior but impacts internal structure.
Further explanation of using grips to manipulate the section view and examine different parts of the model.
Potential exam questions involving shell feature and section analysis for measuring dimensions.
Final review of the shell feature and its importance in the Autodesk Fusion 360 exam.
Encouragement to continue practicing and studying for the Fusion 360 Certified User Exam.
Transcripts
hey everyone another video here on the
autodesk fusion 360 certified user exam
and we're going to take a look at
another exam objective
for
a little bit of preparation for that
exam so if we check under the part
modeling section we're going to be
looking at creating a shell feature
within fusion 360. so i'm going to move
into fusion and the easiest way to do
this is we're going to go ahead and
we're going to click on create a sketch
and i'm just going to create a
cylinder
that is maybe about 5 inches in diameter
and we're going to finish the sketch
and i'm going to extrude this to be
maybe about four inches
and what we're going to do is we're
going to look at again under the modify
panel we're going to go to shell
and when i select it
it first looks for what are the faces or
the bodies so here's one of two things
that we've got to look at is either when
we go to select
this we're going to remove
the face
and it's also going to shell the body so
if we don't want to go through and do
that
then we want to make sure that we look
at just the bodies so i usually have to
open this up from the browser to be able
to select that so here's what i'm going
to do is we're going to go ahead and
we're going to do a first operation and
then i'll show you the second way to
kind of handle that so i'm going to
select the top because i want to remove
that face and to make like maybe like a
cup or something that i can put
something into this container that i
have so then i set the inside thickness
of the walls let's say an eighth of an
inch so that's the inside you can also
change the you know whether it be inside
or outside so you can see the outside it
so it goes out from the outside to shell
and then it goes through and creates you
can see the highlighted blue
it's going to create a outside thickness
of 0.5
or you can do both
to where you want to you want to go
through and change those thicknesses and
again i'm just using the grips and you
can also specify
i'm going to go ahead and do an inside
thickness just because it's very common
so here i'm going to change it to maybe
0.25 you can see how thick the walls
would be
based on that or we could change this to
0.125
and you can see how much thinner the
walls get so that's a difference between
an eighth of an inch and a quarter of an
inch so i'm gonna go ahead and say okay
and the shell is then gonna shell out
the part so then that way that again the
top is removed and these even the bottom
face and the sides all have a thickness
of an eighth of an inch or 0.125 so that
is one way to do so i'm also going to
grab under the inspect panel the section
analysis if i select the work plane you
can also see how the shell gets applied
and we are able to go through and see
that
based upon the section lines that you
see from the solid that's left
so i'm going to go ahead and hit cancel
just because i don't want to set that
section analysis in yet so i'm actually
going to go down here and i'm going to
delete this shell
so which will bring back our full solid
i'm going to run the shell command again
now if i don't want to go through and
remove the faces maybe i just want a
hollow cylinder so this could also be
maybe a little bit beneficial for some
3d printing purposes so especially if
you're just making some objects and you
don't want to have a solid object you
can go through and just you know shell
it out leads to faster print time it's
not going to maybe be as structurally
strong but you can go through and do
that so rather than go through and
choose the faces there i'm gonna go over
and choose the body
and then i can go ahead and set what
thickness that i want it to be we'll do
0.125 again it highlights the entire
body again you can't really see those
walls change or anything like that but
i'm gonna go ahead and say i'm gonna use
the same settings and i'm gonna say okay
so it doesn't really look like anything
happened but here's what's gonna happen
here when i run the section analysis and
i choose that same work plane you can
see here
here's what the inside looks like so the
top just didn't get removed but it's
completely hollow on the inside and as
you turn these work planes using the
grips
you can go through and see what kind of
what kind of shape that you might have
so that's kind of what's going on
with this particular part
is we're shelling it out i'm going to
hit cancel on the section analysis there
and that's kind of how
we utilize the shell feature and a lot
of times what they'll do in the fusion
360 exam they'll have you shell
something and then they want you to
maybe use the section analysis and then
measure how far what kind of dimension
that you would have maybe from the
center of the part to the edge or
something like that so that's really
kind of the
really the extent of the shell feature
for the fusion 360 exam so
hopefully this was a good benefit to you
to review and uh this concludes our
shell feature
exam objective so check out other videos
for other spotlighted exam objectives if
you need help contact me
otherwise keep studying keep trying out
and keep preparing for that acu exam in
order for you to be successful on that
first attempt
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