I finished it a bit sooner that I thought.
I extracted and simplified the geometry from the PDF manual for the lens which has front and top views but no sides.
I didn't get a chance to measure a lens installed in a projector so this is a guess as to how far the thing sticks out, but I seem to say " yikes that sticks out really far" every time I use one of these things.
I was going for something to give an idea for the drawing not perfect accuracy. IE client can see on a diagram that there will be a projector on the floor really close to the screen.
I'm new to messing around in Records, this may not be perfect.
The projector body is the DZ-870
Back up your old Projector Models file!!!!!!!!
Copy the attached file into your C:\Program Files\Vectorworks 2017\Libraries\Defaults\Video Screen\Projector Models or equivalent on a mac.
When you use the Screen tool there should be an option for Panasonic now.
Set the vertical position to Specific Shift, with the distance being negative of the center of the screen to the floor.
I hope to dig into how the Stands work and make one that is just a Locust at 0,0,0 then you don't have to do math on the height.
I may have forgotten something so input is welcome.