Vernier clock

Stationary disk with 60 slots, with a rotating disk with delta 1 lines behind.

On a caliper, the vernier site of the scale has 11 increments for 10 on the main side.

Does it matter which side becomes the hand and which the background? Test...

to do

• better prototyping. maybe extension
  • no easy documentation on cloning in scripting

{{{1}}}

Actioned 2021-10-31

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• Cargo

• cut it out
• need a flat, thin material. Darrel suggested an LP - that would not laser, but maybe 1/16" routing would be OK

work flow

- select shape - set rotational center appropriately

run macro-ish: - create tiled clones

    - make as many rows as blips needed (x)
    - shift y -100% per row
    - rotate  360/x per row

- take one clone drag it elsewhere - clone that one as

    - x-1 rows
    - shift y -100%/row
    - roteate 360/(x-1)

- disconnect clones - the x-copy becomes the top:

    - make cuttable: red outline only
    - put indicator for hour hand
    - group

- the x-1 copy becomes the background

    - make black, no outline
    - group

- align the two on top of each other (left and top)

- manually rotate to test

file

\ projects\vernier clock

options if current design does not work

• need to figure out the hours part... maybe spiral?
• could do the whole thing with only 5 minute increments and use hour speed

givens

• Clock mechanism
  • diameter hour 5.75mm or 5mm (it has a step)
  • diameter minute 3.55mm