Clock 3
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Clock 3 was designed to be a replica of a typical 15 th century Verge and Foliot clock, but it never got finished and was replaced with the more ornate design for Clock 4. I have resurrected it here with some small refinements as in some ways it is a much simpler design than the others on the site. This clock using the verge and Foliot was never very accurate, hence the use of only the hour hand, it wasn’t until the introduction of the pendulum that accuracy was improved, in fact many original clocks were modified with a pendulum to improve the accuracy, so very few examples remain.
This Clock has been designed in inch's so all the shaft’s work out correctly for all those working in imperial measures. Gears never work out in round numbers though, no matter what unit of measure you use.
Drawings for this clock in PDF format can be downloaded here, These free files are restricted so that you can only view them on screen but not print them. Clicking to the right her will download the PDF file directly to your browser, may take a few moments so be patient , if you then want to save it to your computer do so through the file save button on the downloaded fie.
DXF files that can be used with your CNC machine can be downloaded here for $10. The DXF files are not the same as the PDF files,they are a single drawing with all the flat parts laid out separately for easy translation into a machining format.
You also get the unrestricted version of the PDF files that can be printed at full size.
These plans were drawn on ANSI D size paper so may require printing at a bureau or printed out in smaller sections (see the notes in Hints &Tips)
I have included 3D model files for Clock 3 so you can load the 3D files into your own software. The files are in three formats Parasolid, IGS and STP. These files require payment of $20.