Remixed as original wasn't long enough to latch in trapdoor, needed to make hole for PPC fan as it was stopping the trapdoor from sitting flush, also the latch wasn't high enough and has been replaced with the latch from the trapdoor by dvoelkel.

I recommend that you also print https://www.thingiverse.com/thing:2229188 if using this model..

2017-09-11 Improved strength of latch, adjusted post height to better support accelerator card.