It occurs to me that the Tech Burner mostly seems to be about finding a way to buy or aquire tech from an appropriate place. If a character with the appropriate skills wanted to make a piece of tech from scratch, how would that be handled?
The one thing I could come up with is to use the appropriate building skill (Shipwright for ships, Engineering for something like weapons or Devices) in a Building scene to provide a linked die to the Resources roll, and the Resources roll represents the ability to get the various parts and supplies needed to create the tech. This could also eliminate the need to have an appropriate set of Circles to get the tech from and possibly eliminate Regulation penalties if the parts aren’t restricted. Does this sound right?