Dave (also: davidk) is the person behind open collector.
This is mostly where I document things that don’t belong on other sites (thingiverse, forums), or are too long form for other mediums (like tweets).
For the other stuff, like 3D printables check out the things i’ve put up on Thingiverse, YouMagine, or Collector3 on GitHub. The printables are usually inconsistent between sites because it’s a pain to post everywhere.
GitHub has a bunch of random pieces of code i’ve written over the years. Unfortunately most of it is pretty basic (the good stuff is locked away).
For circuits and PCBs, OSHPark shared projects has a bunch of things i’ve gotten fabricated/released.