Building implosion
In the controlled demolition industry, building implosion is the strategic placing of explosive material and timing of its detonation so that a structure collapses on itself in a matter of seconds, minimizing the physical damage to its immediate surroundings. Despite its terminology, building implosion also includes the controlled demolition of other structures, like bridges, smokestacks, towers, and tunnels. This is typically done to save time and money of what would otherwise be an extensive demolition process with construction equipment, as well as to reduce construction workers exposure to infrastructure that is in severe disrepair.
Building implosion, which reduces to seconds a process which could take months or years to achieve by other methods, typically occurs in urban areas[citation needed] and often involves large landmark structures.
The actual use of the term "implosion" to refer to the destruction of a building is a misnomer. This had been stated of the destruction of 1515 Tower in West Palm Beach, Florida. "What happens is, you use explosive materials in critical structural connections to allow gravity to bring it down.
The term "implosion" was coined by my grandmother back in, I guess, the '60s. It's a more descriptive way to explain what we do than "explosion". There are a series of small explosions, but the building itself isn't erupting outward. It's actually being pulled in on top of itself. What we're really doing is removing specific support columns within the structure and then cajoling the building in one direction or another, or straight down.
- βStacy Loizeaux, NOVA, December 1996
Building implosion techniques do not rely on the difference between internal and external pressure to collapse a structure. Instead, the goal is to induce a progressive collapse by weakening or removing critical supports; therefore, the building can no longer withstand gravity loads and will fail under its own weight
Numerous small explosives, strategically placed within the structure, are used to catalyze the collapse. Nitroglycerin, dynamite, or other explosives are used to shatter reinforced concrete supports. Linear shaped charges are used to sever steel supports. These explosives are progressively detonated on supports throughout the structure. Then, explosives on the lower floors initiate the controlled collapse.
A simple structure like a chimney can be prepared for demolition in less than a day. Larger or more complex structures can take up to six months of preparation to remove internal walls and wrap columns with fabric and fencing before firing the explosives.
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i just bought a 3d printer
what kind of stupid shit should i print
or useful shit idc
Let me dig through my 3D folder and see if there's anything cool in here. In the meantime, what did you get?
Edit - some ideas:
Definitely look into processing / printing some lithophanes at some point. These things are pretty cool. e.g. https://www.thingiverse.com/thing:4176380 (this is like a 2 DAY print though, not a great first project).
There are a bunch of 3D puzzles which are generally simple to print and can be fun to play around with and / or give away, e.g. https://www.printables.com/model/986151-sphere-puzzle-brain-teaser . Though they are a bit more finicky, there are also a bunch of designs for more intricate puzzle boxes, e.g. https://www.printables.com/model/81772-brick-block-puzzle-box (this one is on the simple side, but I actually made one of these)
Figurines can be fun: https://www.thingiverse.com/thing:5028132 (these are usually easy to scale, no worries about moving parts or clearances)
Depending on what printer you got, definitely upgrades for the printer :)
When you start getting comfortable with what you're doing, there are some downright impressive model kits: https://www.printables.com/model/295997-v10-engine-turbocharged-working-belt-driven-model-
It's a good idea to order a kit of various metric hex cap screws, nuts, and washers, as these are very commonly used to assemble various 3D printed mechanisms. A lot of designs also take advantage of brass threaded inserts and magnets, but the sizes for these are not standardized enough to pre-order IMO.
Already got some printer upgrades in the queue, waiting on a bambu a1 mini
Those puzzles look really cool, and seem like a good way to get tolerances dialed in
Oooh, that filament changer is really cool for a starter machine. I still don't have anything like that.
I didn't spring for the multi filament system, it looked like it wastes a ton of plastic
The classic first print is the benchy boat. Then you should print things that fix problems you have.
Make me a belt buckle that looks like The Onion's logo and make it big and yellow so I can tie it to my belt, which was the style at the time
Fgc 9
dildo
Try small but practical stuff, to get a feel for the process. Bookmarks are a good first test.