ME1122014

Category: ME112Notes

ME112 2014 Links and notes

1.  Logistics


2.  Videos

ME112WeekOneVideos

3.  Assignment Help and Related Goodies

3.1  Assignment 1 Background + Help

3.2  Assignment 2 Background + Help

3.3  Assignment 3 Background + Help

3.4  Assignment 4 Background + Help

WalkingBirdVideos

3.5  Crawlers mid-term project

3.6  Final Project

* PossibleFinalProjectNotes

Previous Final Projects

Slothbots (Winter 2011)

4.  Computer Tools

4.1  Programming

Python with 'numpy' (numerical python) and 'matplotlib' is a friendly, free alternative to Matlab with similar commands for generating plots, working with matrices etc. If you have a Mac, some version of Python is already installed.

4.2  Dynamic simulation programs

Working Model 2D has been used for years by ME112 students. We have several licenses for the class. Unfortunately, it was written for Windows 2000, and is getting increasingly finicky to run on modern operating systems.

  • If you have a Windows computer you can try installing it from one the CDs. This version wants the CD in your hard drive to run, but you can instead create an ISO image of the CD and mount that. See one of ME112 Teaching Staff about borrowing the CD and setting this up.
  • If you have a new Mac running Yosemite, there is a new Wineskin wrapped stand-alone application. As with Matlab, you need to have X11 or Xquartz activated on your Mac (look in Applications/utilities; download if needed). This pretty much works except that I've had trouble getting simulations to Stop. I've tried everything from clicking Stop to using Control-C, Escape, etc. The only solution seems to be to set World/Pause Control... in Working Model to enforce a timeout Pause after some period of time or a certain number of frames. Other than that it, seems to work fine :-) The first time you launch it, it will ask for the last word on certain page in the manual, which you will have to get from one of the TAs in the ME112 project room.
  • If you have an older Macintosh running Snow Leopard (10.6.8) or earlier, there is a older wrapped app version created using Wine. It runs well as long as you have X Windows (Utilities) installed. Download the zip file, unzip it and put anywhere.It's a stand-alone application. The first time you launch it, it will ask for the last word on certain page in the manual, which you will have to get from one of the TAs in the ME112 project room.

Algodoo is a modern alternative to Working Model and is free for Windows, Mac and Linux. It has somewhat less ability to customize the properties of objects and surfaces, but you can still build interesting simulations. The handling of collisions also seems a bit less tunable than in Working Model; as a result dynamic simulations sometims seem a bit "jumpy."

5.  Curated List of Helpful Links

5.1  Gears, Involute Profiles, Transmissions

5.2  Fatigue

5.3  Motors

5.4  Linkages

Main.ME112LinkageLinks

5.5  Cams and other Mechanisms

Page last modified on March 15, 2017, at 01:15 PM