/[gzz]/manuscripts/Control1/poster.rst
ViewVC logotype

Diff of /manuscripts/Control1/poster.rst

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

revision 1.83 by tjl, Mon May 5 21:26:01 2003 UTC revision 1.84 by mudyc, Mon May 5 21:28:17 2003 UTC
# Line 212  the optomechanical mice. Line 212  the optomechanical mice.
212     :width: 7.5cm     :width: 7.5cm
213     :label: figrequired     :label: figrequired
214    
215  The non-LEGO parts and tools required for a controller.     The non-LEGO parts and tools required for a controller.
216  A USB mouse would be preferred to the PS/2 mouse     A USB mouse would be preferred to the PS/2 mouse
217  shown in the picture, since several can be connected     shown in the picture, since several can be connected
218  to a computer simultaneously as separate input sources.     to a computer simultaneously as separate input sources.
219    
220  .. figure:: mouseopen.jpg  .. figure:: mouseopen.jpg
221     :width: 7.5cm     :width: 7.5cm
222     :label: figmouseopen     :label: figmouseopen
223    
224  The mouse, opened with the screwdriver. The screwdriver     The mouse, opened with the screwdriver. The screwdriver
225  will not be needed after this step.     will not be needed after this step.
226    
227  .. figure:: mousemechanism.jpg  .. figure:: mousemechanism.jpg
228     :width: 7.5cm     :width: 7.5cm
229     :label: figmousemechanism     :label: figmousemechanism
230    
231  The mechanism of the mouse: the mouse ball, which rotates     The mechanism of the mouse: the mouse ball, which rotates
232  from contact with the underlying surface, rotates     from contact with the underlying surface, rotates
233  the two axles whose motion is then detected.     the two axles whose motion is then detected.
234    
235    
236  .. figure:: optomechanism.jpg  .. figure:: optomechanism.jpg
237     :width: 7.5cm     :width: 7.5cm
238     :label: figoptomechanism     :label: figoptomechanism
239    
240  In optomechanical mice, the motion of the axles is detected     In optomechanical mice, the motion of the axles is detected
241  by the IR light gate whose beam is cut by the slitted disk.     by the IR light gate whose beam is cut by the slitted disk.
242    
243  Figures [ref-figrequired]_ - [ref-figoptomechanism]_ explain  Figures [ref-figrequired]_ - [ref-figoptomechanism]_ explain
244  the internal mechanism of optomechanical mice,  the internal mechanism of optomechanical mice,
# Line 258  affected: the gate missed a large fracti Line 258  affected: the gate missed a large fracti
258     :width: 7.5cm     :width: 7.5cm
259     :label: figwheelmechanism1     :label: figwheelmechanism1
260    
261  The principle behind the current version of     The principle behind the current version of
262  our interface between the optomechanical mouse and     our interface between the optomechanical mouse and
263  LEGO pieces: driving the mouse axles by a rubber LEGO tyre.     LEGO pieces: driving the mouse axles by a rubber LEGO tyre.
264  A smooth tyre (Bricklink part no 132-old)     A smooth tyre (Bricklink part no 132-old)
265  works even better, but they are currently     works even better, but they are currently
266  in short supply.     in short supply.
267    
268  The third and so far final solution is to use the mouse's own  The third and so far final solution is to use the mouse's own
269  mechanism, simply driving it using a LEGO rubber tyre  mechanism, simply driving it using a LEGO rubber tyre
# Line 279  LEGO mechanism shown in Figs. [ref-figpr Line 279  LEGO mechanism shown in Figs. [ref-figpr
279     :width: 7.5cm     :width: 7.5cm
280     :label: figpressmechparts     :label: figpressmechparts
281    
282  The LEGO parts for the driving mechanism     The LEGO parts for the driving mechanism
283    
284  .. figure:: pressmechanism1.jpg  .. figure:: pressmechanism1.jpg
285     :width: 7.5cm     :width: 7.5cm
286     :label: figpressmechanism1     :label: figpressmechanism1
287    
288  The driving mechanism assembled. The mechanism is attached     The driving mechanism assembled. The mechanism is attached
289  to the LEGO framework by the long axle; the driving tyre     to the LEGO framework by the long axle; the driving tyre
290  is on one end of the 1x5 liftarms and     is on one end of the 1x5 liftarms and
291  a towball for attaching a rubber band     a towball for attaching a rubber band
292  at the other.     at the other.
293  The rubber band is used to pull the towball upwards,     The rubber band is used to pull the towball upwards,
294  which in turn presses the tyre downwards.     which in turn presses the tyre downwards.
295  The force is easily adjustable by adjusting the other     The force is easily adjustable by adjusting the other
296  end of the rubber band.     end of the rubber band.
297    
298  With the pressure mechanism, it is simple to build a housing  With the pressure mechanism, it is simple to build a housing
299  for the lower part of the mouse case and place the tyre holders  for the lower part of the mouse case and place the tyre holders
# Line 306  is not shown in the these images). Line 306  is not shown in the these images).
306     :width: 7.5cm     :width: 7.5cm
307     :label: figframestart     :label: figframestart
308    
309  The beginnings of the housing for the mouse case.     The beginnings of the housing for the mouse case.
310    
311    
312  .. figure:: framedrivers.jpg  .. figure:: framedrivers.jpg
313     :width: 7.5cm     :width: 7.5cm
314     :label: figframedrivers     :label: figframedrivers
315    
316  The driving mechanisms (using a slightly different version     The driving mechanisms (using a slightly different version
317  than the one depicted in the previous figures)     than the one depicted in the previous figures)
318  attached. After the towballs are attached     attached. After the towballs are attached
319  to rubber bands for pressing the tyres downwards slightly,     to rubber bands for pressing the tyres downwards slightly,
320  motions from the LEGO axles are accurately translated to mouse     motions from the LEGO axles are accurately translated to mouse
321  X and Y motions.     X and Y motions.
322    
323  On the software side, the Linux kernel is able to  On the software side, the Linux kernel is able to
324  pass events from each USB mouse to a different virtual device  pass events from each USB mouse to a different virtual device
# Line 346  focused node and the peripherally shown Line 346  focused node and the peripherally shown
346     :width: 7.5cm     :width: 7.5cm
347     :label: figloomcontrol     :label: figloomcontrol
348    
349  A fully functional controller prototype, with two     A fully functional controller prototype, with two
350  absolute arm controls and a wheel control. All three     absolute arm controls and a wheel control. All three
351  controls have enough friction     controls have enough friction
352  to retain their position.     to retain their position.
353    
354  We must stress that  We must stress that
355  this controller is still very much work in progress;  this controller is still very much work in progress;
# Line 375  by preserving its position Line 375  by preserving its position
375     :width: 7.5cm     :width: 7.5cm
376     :label: figjoystick     :label: figjoystick
377    
378  A 2D joystick-like controller built from LEGO bricks as     A 2D joystick-like controller built from LEGO bricks as
379  a proof-of-principle.     a proof-of-principle.
380  There is no force returning the joystick to its     There is no force returning the joystick to its
381  center position in this design, but if desired,     center position in this design, but if desired,
382  that could easily be added (although in that case simply     that could easily be added (although in that case simply
383  purchasing a commodity     purchasing a commodity
384  game controller would be easier).     game controller would be easier).
385    
386  Practical tips  Practical tips
387  ==============  ==============
# Line 462  handle is shown in Fig. [ref-figoctagona Line 462  handle is shown in Fig. [ref-figoctagona
462     :width: 7.5cm     :width: 7.5cm
463     :label: figoctagonal     :label: figoctagonal
464    
465  A rugged and relatively comfortable octagonal     A rugged and relatively comfortable octagonal
466  handle built from slopes and inverted slopes.     handle built from slopes and inverted slopes.
467    
468    
469  With some more effort, ergonomic handles of any imaginable shape  With some more effort, ergonomic handles of any imaginable shape

Legend:
Removed from v.1.83  
changed lines
  Added in v.1.84

savannah-hackers-public@gnu.org
ViewVC Help
Powered by ViewVC 1.1.26