Back1
Date: 11/05/2008
The panel on the back contains the power socket, RS232 port, GPS antenna socket and time zone changing button.
flywheel1
Date: 11/05/2008
Machining the flywheel cast from lead gathered in the wild (fallen off tyre weights from the road).
inside1
Date: 11/05/2008
Inside the box showing the two mirrors that make up the periscope you can see the display in.
inside2
Date: 11/05/2008
A close up of the flywheel and micro switch that controls the flashing of the display back light.
svchrono1
Date: 11/05/2008
Finished device.The casing is made from MDF varnished then sprayed with black enamel. The front panel is sheet steel painted with steel wheel paint.
svchrono2
Date: 11/05/2008
The eye pieces are made from a pair of ancient broken binoculars with the lenses removed.
inside3
Date: 11/05/2008
The back slightly open showing how the screen is visible though the eye pieces only via the periscope mirrors.