Entries from February 2008

Free Body Diagram

Date February 28, 2008

This is an FBD of a hammer being held in the air (no motion) for class. Note: Since the hammer is held at an angle in the picture, the forces should be scaled by the cosine of the angle between the ground and the handle. Also as discussed in class with a solid piece like [...]

nRF2401 wireless module Arduino-compatible Library

Date February 21, 2008

Found what seems to be a new cheaper source of the nrf2401-based transceivers sold @ SparkFun, just in time for a cleanup/Arduino port of nRF2401 code

Random thoughts from Living Art

Date February 14, 2008

Production: Remember to ask “how can I push this?”, “what would make it more interesting?” (“would it be more interesting if…?”) Spend more time documenting; also spend time documenting others work; it can be useful for both.  Bring a camera on presentation days. Try more to incorporate things I don’t know Midterms/finals: balloon stomping room [...]

Designing Cost Effective Mechanisms reading

Date February 14, 2008

Chapter 3 didn’t seem to deliver world peace (although working off the Blackboard copy I didn’t get a chance to read all of it).  Much of this reading seems to be, more than anything, just a listing of every kind of coupling/connector imaginable.  I find this stuff interesting, but with it being very quick mentions, [...]

Minimum constraint design reading reactions

Date February 14, 2008

question: what is a crown on a cam follower?  how are cam followers made eccentric, and how does is this used in adjustable matched sets?  chapter 2: for a while “minCD will solve world hunger and create everlasting peace, but I won’t tell you how until ch. 3.”  unfortunately we didn’t get ch 3. interesting [...]