No, the D20 is not dead yet. Earlier sources had reported the death of this die, but it has rallied into a viable project once again. The 3D printer failed spectacularly with a clogged nozzle that required disassembly and cleaning. After our lab techs adjusted the printer bed I gave the die another try and it worked! There was much rejoicing!
One half is done, in a nice green. The second half should be printed later today which is a good thing because the electronic parts I ordered for this project were delivered today!