Comments on unintended consequences of 3D printing (3D printed guns, for instance)
3D printing in biomedical spaces
More examples on existing applications
Challenges of 3D printing
would've been helpful for you to mention the gulf of execution (?) between what you see on a 3D model/slicer and what comes out the other end. I struggle a lot with how objects behave differently in 3D vs in real life, and that feels like an interface problem.
Add descriptions of where technologies are headed, existing research
Typos
“A level higher, the framework argues that task-level concerns include the utility of the feedback, the degree to which the cause of the feedback is clear, the consistency of it’s delivery, and its saliency. These two lower levels of feedback characteristics can combine along several experiential diemnsions,”
Is task-level a higher or lower level feedback? The first sentence suggests its a higher-level, while the last sentence suggest otherwise. Additionally, the e and m in "dimensions" is swapped.
Perhaps define facsimile.
"Researchers have long pondered why are screens have to be flat..." should be "why screens have to be..." or "why are screens..."
Things to add, potentially
Typos