Clock gear spacing
After playing with the locations of the motors and gears I roughly sketched an assembly diagram with the location of the motors and shafts to allow me to estimate various part sizes. My gears were described as “27 mm Diameter
Posted in: Topsy Turvy Clock
Tags: Gears
Exploding E-Cigarettes
In the news this week was a report about a barmaid and an exploding electronic cigarette. Apparently the device had been plugged into an IPad charger rated at 2A rather than the intended charger which was rated at 0.5A. A
Posted in: Safety
Tags: electricity, Safety
Making a Concrete Planter
After the bathroom was repaired we have a selection of hardiebacker concrete board pieces left over. Not wanting to chuck these away but also not really having space for them I decided to make a planter out of them. The
Posted in: Uncategorised
Materials: Concrete
Tags: concrete board, Garden Furniture, upcycle
Scotland to switch to DC
Scottish Power have confirmed plans that following a “yes” vote for Scottish Independence they will be switching their electricity distribution network to DC. “Tesla was right! says Scotland” This change will allow them to drop their requirement to synchronise their
Posted in: Uncategorised
Tags: APR1, electricity, Scotland
Breaking the mishap chain
Human Factors Lessons Learned From Aerospace Accidents and Incidents in Research, Flight Test, and DevelopmentBy Peter W. Merlin, Gregg A. Bendrick, and Dwight A. Holland This book is a series of case studies looking at mishaps with aircraft and space
Posted in: Books and Magazine Reviews
Tags: Accidents, Nasa, US Airforce
Richard Deacon at Tate Britain
When I saw the posters for this exhibit I knew I had to go and see it. Like the fliers these posters feature a work called “After” in wood and metal which fills one of the later rooms of the
Posted in: Sculpture
Box lid an afternoon woodworking project
Not so long ago we bought a box to put by the front door and put our shoes in, the old portis shoe rack now lives by the backdoor. The box came with a rather strange lid, a sheet of
Posted in: Repairs, Woodworking
Tags: box
Tolerances and fit calculations
Whilst looking for tables of tolerances and fits for my clock spindles, I stumbled upon Mitcalc. This is a series of Excel spreadsheets that simplify engineering calculations. The sheets provide a simple interface to select and enter parameters and displays
Posted in: Uncategorised
Tags: Tolerances
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Metal sculpture in brass, mounted on an 1800s French Coin
