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3

Lego plates (all Legos actuallu) are made from ABS plastic, as are plastic shower surround materials. Buy a caulk tube of shower surround adhesive (I have used loctite power grab from Home Depot $5). Scuff the back of the lego plates with some sandpaper and apply the adhesive with a fine notched trowel and slap it on your wood ;) Gently press any lumps out. ...


2

Is there a specific scenario in which it should be unbreakable? You definitely should use different techniques to prevent a spaceship from falling apart when dropped from a meter and to prevent a brick wall from separating when hit by a rolling football. For System bricks using larger, longer bricks in overlapping configuration (think real life bricklaying) ...


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This is really nearly impossible unless you have a lifetime supply of super glue. A good structure using Technic LEGO bricks will provide better support and a lot more "stick" to each other, making the creation less breakable. Building the structure in which the strongest side will take the most hits/pressure should be an excellent way to make the model ...


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This sounds like a job for "Amazing Goop." It's available at Home Depot and other big stores, at least in the US. There are a few varieties, including one for automotive use. It pretty much sticks anything to anything, and once cured, it's on for good. I've used it for gluing LEGO pieces onto a curved metal surface, and was very happy with the results. ...


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It's hard to answer this question without knowing more about the model in question. Something like a small Lowell Sphere would probably be made 'unbreakable' by a little squirt of expanding foam insulation inside. A Technic vehicle would be a whole different problem.


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According to Wikipedia acetone can help soften cyanoacrylate, but it also dissolves ABS, so you might want to avoid that. Another website advises for using soap and water, although it seems dubious to me whether it would make any difference, this method certainly won't damage your parts (unless they are electronic or have stickers), so you might as well ...



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