Here is a planar vertical solar watch. It is computed based on my house location on earth as well as wall orientation. So it is completely not reusable as is… BUT, I will provide you with the steps to replicate:
First, I have used an application to compute the time lines coordinates. To do this, I have used Shadows 3.5. After creating the solar watch, I have exported the coordinates in an excel sheet (option available in Configuration menu).
Then, I have added some excel formula to produce some copy paste ready Ruby code.
Then, I have created a Ruby code to drive the lines construction in sketchup.
This is a really easy starting point to finally draw missing lines & add dressups.
The process is not straight forward, but as it was a one shoot process, I didn’t try to improve it.
This solar watch is a planar one & a first try for me on a 3D printer. Based on this first experience, I will try to work on a 3D solar watch such as this one. If somebody has some plan…