User:Mct/addiator

i intend to try making a simplex addiator

construction notes

• materials
  • laser cut parts of of acrylic, wood?
    • does two-tone acrylic come in sheets thin enough to make it useful for the numerals / colors?
  • make out of sheet metal?
    • slides could be milled out of sheet stock - probably easier than trying to stamp them
      • could do them all at once
    • case might prove problematical
• details
  • engrave / stamp features & paint to color them in?
  • turn a stylus, or just use pencil?
  • make the zeroing slide push-operated and at the bottom of the device?
    • might make it prone to accidental zeroing, or to stressing the sliders when pocketed

resources

repositories of information useful to the project

links

websites with addiator info

• arithma page on rechnerlexikon
• addiators on john wolff's web museum
  • a good shot of the internals of an addiator
• german addiator site
  • a good shot of a pile of slides
• mechanicalculator page on addiators

documents

non-web resources

patents

patent filings covering addiators; useful because of the depictions of addiator internals

• 

  simplex, with diagram of assembly; german

• 

  simplex, with full slider detail and face; german

• 

  simplex, with sectional views

• 

  duplex, with details of sliders; german

• 

  duplex, with details of sliders

publications

non-patent resources

• 

  addiator gallery; see specifically the internals on p. 100