[Firebug-cvs] firebug/doc/chassis chassis.tex,1.15,1.16

[David M. D. <do...@us...>]

Update of /cvsroot/firebug/firebug/doc/chassis
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv16810

Modified Files:
	chassis.tex 
Log Message:
Deleted redundant material

Index: chassis.tex
===================================================================
RCS file: /cvsroot/firebug/firebug/doc/chassis/chassis.tex,v
retrieving revision 1.15
retrieving revision 1.16
diff -C2 -d -r1.15 -r1.16
*** chassis.tex	16 Dec 2005 06:17:54 -0000	1.15
--- chassis.tex	16 Dec 2005 19:25:01 -0000	1.16
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*** 4,8 ****
  \usepackage{graphicx}
  \usepackage{subfigure}
! %\input{comment}
  
  \setlength{\textheight}{8.5in}
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  \usepackage{graphicx}
  \usepackage{subfigure}
! \input{comment}
  
  \setlength{\textheight}{8.5in}
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*** 72,76 ****
  deployment, and dissasembly of the Crossbow WSN hardware.
  
! This paper reviews the design process and technical issues for creating such a chassis.
  
  \section{The Mica mote}
--- 72,77 ----
  deployment, and dissasembly of the Crossbow WSN hardware.
  
! This paper reviews the design process and technical issues for
! creating such a chassis.
  
  \section{The Mica mote}
***************
*** 262,268 ****
  Short-run injection molding through a service bureau such as Protomold
  was determined to cost approximately \$2,500 for tooling and a fixed
! lot of 25 parts, and between \$3 to \$10 per additional part (depending
! on volume).
! 
  
  \begin{figure}
--- 263,268 ----
  Short-run injection molding through a service bureau such as Protomold
  was determined to cost approximately \$2,500 for tooling and a fixed
! lot of 25 parts, and between \$3 to \$10 per additional part 
! (depending on volume).
  
  \begin{figure}
***************
*** 307,396 ****
  
  
- \section{Mica Mote Chassis}
- 
- Early on we identified the following design objectives in a mounting chassis:
- \begin{itemize}
- \item Tool-less; requires only hands and possibly a coin to 
- open, disassemble, reassemble (rapid and simple)
- \item Separation of modular components: sensing, power, mote, antennas
- \item Wiring harness to separate power connection
- \item battery cage design to accommodate different battery candidates
- \item Supports mounting by: screw, strap, zip-tie, velcro, magnet, hook, or similar 
- technology.
- \item Injection moldable for low-cost high-volume production
- \end{itemize}
- 
- 
- \subsection{Design for Assembly}
- 
- 
- >>Boothroyd references
- 
- -mounting mote onto chassis; supporting edge connectors
- 
- -using wiring harness to connect power to mote
- 
- -pyramid assembly
- 
- -using standoffs as thumbnuts
- 
- -chamfers on the battery clip
- 
- 
- \subsection{Design for Injection Molding}
- 
- -straight-pull design
- 
- -avoiding undercuts
- 
- -constant wall thickness to avoid shrinkage
- 
- -shelled design
- 
- -strapping slots ribbed for rigidity
- 
- \begin{figure}
- \begin{center}
- \includegraphics[width=3in]{figs/exploded_view_2.eps}
- \caption{An exploded view of the ``candy bar'' chassis 
- used for the controlled burn test at East Bay Regional 
- Parks Fire Department, Lake Chabot.}
- \label{fig:exploded_view_2}
- \end{center}
- \end{figure}
- 
- 
- 
- A prototyped ``candy bar'' chassis machined from acrylic
- is shown in Fig.~\ref{fig:exploded_view_2}.
- 
- 
- \begin{figure}
- \begin{center}
- \subfigure[Front view.]{\label{subfig:candy_bar_injection_moldable_front}%
- \includegraphics[width=2.5in]{figs/candy_bar_injection_moldable_front.eps}}
- \subfigure[Back view.]{\label{subfig:candy_bar_injection_moldable_back}%
- \includegraphics[width=2.5in]{figs/candy_bar_injection_moldable_back.eps}}
- \subfigure[FDM front view.]{\label{subfig:fdm_front}%
- \includegraphics[width=2.5in]{figs/fdm_front.eps}}
- \subfigure[FDM back view.]{\label{subfig:fdm_back}%
- \includegraphics[width=2.5in]{figs/fdm_back.eps}}
- \caption{Injection mold design, and prototype using FDM technology.}
- \label{fig:cbim}
- \end{center}
- \end{figure}
- 
- An injection moldable chassis, as shown in 
- Fig.~\ref{fig:cbim} was designed with the ??? software.
- 
- \begin{figure}
- \begin{center}
- \includegraphics[width=3in]{figs/fdm_assembled.eps}
- \caption{Assembled mote using FDM prototype.}
- \label{fig:fdm_assembled}
- \end{center}
- \end{figure}
- 
- 
  
  \section{Wiring harness}
--- 307,310 ----