A person on the boards had a concern trying to revise an existing thing (https://www.thingiverse.com/thing:423460). I looked at the code and thought it was a bit unwieldy. THIS IS NOT A REMIX: I have endeavored to make a simpler but effective hexagon lampshade maker...I hope it works for you. This is version 1, I do intend to improve it to allow for selected of the number of panes in addition to the current configurability.
You need to print 2 base pieces (top and bottom) and 6 risers.
I HAVE NOT DONE A TEST PRINT YET...the person on the boards was in a hurry. Parts may not snap easily, some sanding may be required.
Update 62/2018: Added a picture of my test print, and a revised Riser STL.