My Design - Phase 1

Here is my design - so far. 

I've based it in Clayton's plan, but changed everything except the number of teeth and the verge and foliot design, which has been adapted to allow different Flags to be tried.

All measurements are now in cms, with the MDF varying from 0.3 to 1.8 cm thickness.

The frame will consist of 3 layers:
- the base,
- a depthing layer (although the slots need not allow more than 1cm of free play)
- and a cover with oversized holes (which will not be visible because of the first spacers).

The minute wheel now turns anti-clockwise (so the numbers are written clockwise) and the thickness of the wheels decrease from 1.2cm to 0.6cm and they all have washers (shown as orange) to hopefully reduce friction. 

Four connecting rods will be used for pieces which would normally be glued together to allow easy changes.  Internal multiple adjacent pieces will have over sized holes to reduce friction.

The pulley drums have enough depth to allow for 50-100 hours running without overlapping the lines (depending on their thickness), but will only allow for 25 hours running at normal height!  Phase 2 will consider how much extra compounding weight can be safely added to increase the running time and include an Hour wheel. 

The rachet assembly uses 3 pawls to reduce inertia (different to Clayon's design).

The minute clock face is interchangeable (to a coloured display, shown here as an RGB clock, but perhaps Munsell colours will be used to aid perception) and can be easy adjusted for the inaccurate timekeeping of the clock!  I currently see no need for a time pointer as the 12 o'clock position seems obvious!

 

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