Although I work with computers for a living, so am happy working with internals - my fear with the iMAC has always been removing the screen uniformly. I keep thinking if I were to pull up on one side more then the other I may bend and shatter the screen!
Also, do you need to apply heat to 'free' the tackiness of the adhesive somewhat or can you manage it without?
That's another thing - applying too much heat and damaging anything....
I have a pretty simple guide when it comes to electronics. Don’t undertake any task that you are not 100% sure you can accomplish without damage, unless you can sacrifice the device without concern.
If the computer could be disposed of without it bothering you, then a learning experiment might be fine.
I give my old equipment to my kids to dismantle and learn. And I advise them if they ask. Otherwise, I’m letting them learn.
I have another machine I just built. It works. I built it out of old parts. It’s sole purpose is to be dismantled. And it’ll either work or not work when they’re done. Naturally I will inspect it prior to power being reapplied. It’ll be dismantled down to the raw component level.
This won’t be their first go round. I teach them hands on in everything. I believe in being prepared for everything. So with my design background, I can start out in the middle of nowhere with nothing. And at the end of the day, I’ll have built something. I prefer to build instead of buy. The process and uniqueness.
I teach them the same thing. Never look at what it is. Always think about what it could be. And to that end, I believe in giving someone the opportunity to learn. But... I also believe in being smart about it. With kids, they learn under supervision. I will let them work freely. But, I will observe and stop them before they do something that might hurt them, and explain in an educational way why they need to rethink this particular step.
Learning on sacrificial equipment is the best way for the inexperienced to learn. Don’t ever teach yourself to take things apart on something that is crucial for you to keep functioning.
If you need to get to work tomorrow, don’t dismantle your only car tonight just because you want to learn how to do something. Pick up a sacrificial car (hopefully close to free) and teach yourself on that car. And take the time to research what you’re doing.