Some 1/2" acrylic display cases I threw together for a customer with sliding doors. 
Discussion
Wow. How much do they weigh?!
Rough estimate, 150lbs..... Heavier than I think should be mounted by the 4 holes on the back but their engineer assured me it was what he wanted.
I recently made an enclosure for my 3D-printer. I thought I had plexiglass, but it weighs 24 lbs, so I'm pretty sure it's acrylic. I plan on installing a pully on the ceiling to help with this problem.
Plexiglass is a brand of acrylic. Why not add a hinged door? I built mine so i could open from the front or remove the top at the end of prints or to service machine since the enclosure is really just to hold in heat and stop drafts.
I guess I meant Lexan instead of Plexi, but TBH I don't know what it is. It was free. 🙂
I might add a door, but it felt like it'd be a pain to get a good seal, not have things get damaged if the enclosure flexes when I move it, etc. Plus I change filiment often enough that I'd also have to have a sepatate piece for the top unless my door is going to be mad tall.
All of this seems like a lot more work to get a more fragile enclosure. Bolting 5 sheets of clear plastic together with little 3D printed brackets seemed way easier.
