Lithocup lampshade adapter

I made an lampshade adapter plate for the World Map Lithocup I made
http://www.thingiverse.com/make:133080
from TimEdwards design
http://www.thingiverse.com/thing:326214
It took three tries because this glow-in-the-dark Inland PLA shrinks so damn much during the print! So, If you try this, you'll need to edit the scad file to your dimensions. www.openscad.org Expect to need a couple of iterations to dial it in. Thanks again, TimEdwards!
FYI: I plan on making a couple more of these for my floor lamp. I broke all but one of the 5 lampshades 7 or 8 years ago while rushing to get to the airport after a power outage killed our alarm clocks! I'll post when more pics later. -Joe