/[gzz]/manuscripts/Control1/poster.rst
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revision 1.84 by mudyc, Mon May 5 21:28:17 2003 UTC revision 1.85 by tjl, Mon May 5 21:31:38 2003 UTC
# Line 444  instead of Line 444  instead of
444    
445     $(f(x+\epsilon) - f(x)) / \epsilon$     $(f(x+\epsilon) - f(x)) / \epsilon$
446    
447    Even if it is a horrifying thought to LEGO purists, bricks
448    can be glued together to obtain an even sturdier structure.
449    However, this is seldom necessary.
450    
451  Handles  Handles
452  -------  -------
# Line 506  construction of controllers does require Line 508  construction of controllers does require
508  tips above).  tips above).
509  Even with careful construction, there will be some (not much)  Even with careful construction, there will be some (not much)
510  mechanical  mechanical
511  looseness in the controller;  looseness in the controller; however, humans *are* used to compensating
512    some mechanical looseness.
513  Cons:  Prototypes built from LEGO bricks are also often
514    relatively large compared to what the size of the desired
515    controller would ideally be.
516  - gluing parts  However, we have found that redesigning the controller a few times,
517    with some internal peer review helps to reduce the controller
518  - mechanical looseness  size greatly.
519    For knobs or levers with absolute position, our approach does
520  - some inevitable  unfortunately require calibration; there is no way for the computer
521    to know the initial position of the lever.
 - humans used to some  
   
 - can be alleviated to a great degree by careful construction  
   
     - see tips  
   
 - relatively big size  
   
 - size has already reduced and will probably still reduce by new  
   inventions for connecting mouse's optomechanics mouse to handles  
522    
 - requires calibration  
523    
524  - having to explain to budget counters purchases of LEGO sets with  - having to explain to budget counters purchases of LEGO sets with
525  interesting names (or bricklink purchases)  interesting names (or bricklink purchases)

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