Aloysious A Gruntpuddock
Cable release - DSCF3910
One of my shutter releases developed for the 'Woody' robitic panoramic heads.
This one was for my Fuji S9500 which had a shutter button threaded for an old-fashioned cable release.
Flat Lego plates with gear teeth are fixed to a sliding beam on the inside. When the wheel turns it operates another small gear inside which pushes the sliding beam along to operate the cable release. To zero it it I turn the gears until the sliding beam just touches the plunger on the release.
Never felt really safe with this one because I worried that if I got the programming wrong the beam might keep pushing after the shutter had fired. Thought this might damage the button on the camera or even pop it right off!
I suppose I could put a spacer on the plunger to limit its range of movement.
Now superseded, first by an 'electronic remote' plugged into the side of the camera - the contacts were pressed together by a cam on a Lego motor instead of by hand. That was supersede in turn by a similar system but the contacts were replaced by relays which were operated directly from the Lego brick. Saves a motor and is smaller as well as more reliable.
Mindsensors are going to supply a device which will add rotation control to the older rcx motors as well as the new power function units. These are all smaller than the Mindstorms motors so can make units like this a bit neater.
www.mindsensors.com/index.php?module=pagemaster&PAGE_...
Cable release - DSCF3910
One of my shutter releases developed for the 'Woody' robitic panoramic heads.
This one was for my Fuji S9500 which had a shutter button threaded for an old-fashioned cable release.
Flat Lego plates with gear teeth are fixed to a sliding beam on the inside. When the wheel turns it operates another small gear inside which pushes the sliding beam along to operate the cable release. To zero it it I turn the gears until the sliding beam just touches the plunger on the release.
Never felt really safe with this one because I worried that if I got the programming wrong the beam might keep pushing after the shutter had fired. Thought this might damage the button on the camera or even pop it right off!
I suppose I could put a spacer on the plunger to limit its range of movement.
Now superseded, first by an 'electronic remote' plugged into the side of the camera - the contacts were pressed together by a cam on a Lego motor instead of by hand. That was supersede in turn by a similar system but the contacts were replaced by relays which were operated directly from the Lego brick. Saves a motor and is smaller as well as more reliable.
Mindsensors are going to supply a device which will add rotation control to the older rcx motors as well as the new power function units. These are all smaller than the Mindstorms motors so can make units like this a bit neater.
www.mindsensors.com/index.php?module=pagemaster&PAGE_...