3D-printed PCB through-hole assembly jigging for holding parts in place while a board is upside-down for soldering.
I was asked to give a talk or run a workshop at WOPR Summit about lessons I've learned manufacturing homebrew electronics at (modest) scale. I wasn't able to make that commitment in time, but I will be writing up some blog posts in lieu of a presentation.
ŝȍ̽m̩͎̞̺̾ẻ̘t̉̇h͙̎͊̂͌̆̉i̅ͪ̔ng͇̦̘̜̒̀ ͒̓we͗̍̎̎́n̲͍ͬ̓̈ͯͧͩtͬ̊̄̓̃ w̘̙̼̮ͩ̓ͪ̔̅r͔̻̂̅̓̍o̒̓͗͛ͦͬ̒n͇͇͔̾̓ͭ̚g͈̥͌̚