More Related Content More from Oregon FIRST Robotics More from Oregon FIRST Robotics (20) First fare 2013 using cad in frc design1. FIRST Fair 2013
Using CAD to improve your
FRC design process
Manjiri McCoy and Jeff Strater
SW Engineers, Autodesk
© 2013 Autodesk
2. Topics for today
CAD in the FRC design process
Why you should use CAD
Tips for simplifying CAD process
Autodesk Fusion360 introduction
Online resources
© 2013 Autodesk
4. CAD on your team
Do you make CAD models at all?
If so, what is it used for? Just documenting the
design that you already built?
Or, do you actually design parts of your robot
before you build it?
© 2013 Autodesk
5. Why use CAD for Design?
You can avoid problems before they happen
Too heavy
Dimensions are too big
Mechanisms don’t work as you thought they would
Components are “in the way” that nobody realized until
you tried it out
It’s cheaper to model in software than in
hardware
Parts list for purchasing
This is how real businesses design stuff
You can make really cool
marketing/documentation as well
© 2013 Autodesk
6. But, it’s too hard to model the whole robot –
that would take forever!
Don’t model the whole thing
Only design the parts that are critical to success, or that you
have concerns about
If you are re-using the drive train from last year, don’t model
that, just model the parts that are critical to the game
Don’t model in too much detail
Tire treads are not necessary for analyzing your design
Use the internet
There is a lot of designs out there that you can use
GrabCAD
FIRST
Parts manufacturers
Divide up the design among multiple team members
© 2013 Autodesk
8. Using Fusion360 for your designs
What is Autodesk Fusion360?
Cloud-based CAD for collaboration
Direct modeling and a simple, modern UI
Runs on Windows and Mac
Support for mechanical joints to make mechanism
design simple
Fusion (and all Autodesk software) is free for
students
© 2013 Autodesk
9. Fusion 360 features of interest:
Collaboration with a team
You don’t have to share computers or thumb drives to
have multiple team members work on the same design
Even a single team member can work on the design at
school, at home, anywhere.
Mechanism design
Fusion’s Joint command allows you to create
mechanisms very quickly
Motion Link and Motion Study
© 2013 Autodesk
10. More Fusion features
Interference detection
Can determine if parts collide
Contact sets also useful for this
Mass properties
Can show overall weight, volume, center of gravity
© 2013 Autodesk
11. Resources to use
GrabCAD: https://grabcad.com/home
FIRST CAD info:
http://www.usfirst.org/roboticsprograms/frc/caddesign-and-animation
BXD: http://bxd.autodesk.com/
Fusion hub:
http://fusion360.autodesk.com/about
© 2013 Autodesk
13. Autodesk is a registered trademark of Autodesk, Inc., and/or its subsidiaries and/or affiliates in the USA and/or other countries. All other brand names, product names, or
trademarks belong to their respective holders. Autodesk reserves the right to alter product and services offerings, and specifications and pricing at any time without notice,
and is not responsible for typographical or graphical errors that may appear in this document.
© 2013 Autodesk, Inc. All rights reserved.
Editor's Notes Ask these questions of the audience:Do you model your robot?How many model only for marketing or documentation?How many actually model for design? The “D” in CAD is for “Design” not for “Documentation”Have you ever bought parts that you don’t use? Ever had to throw stuff away because you cut it and then the design didn’t work?CAD as dual-use – design and documentation There are lots of CAD packages out there, we are only going to talk about Fusion360 (we are biased)Show the dashboard