Hot answers tagged durability
The track is pretty durable. I have several pieces of old track that the motor runs on well. With the 3D printers now available I am hoping to be able to "print" some of the track with ABS filament. Getting the gear teeth just right will be the tricky part and the end connectors.
Lego bricks can withstand a fairly high pressure before they deform, but Lego creations tend to deform more easily at the various connection points. Therefore it's possible to build a relatively easily deformed bridge using long pieces, such as technic beams. You could build a bridge that deforms easily and then show how it flexes under the various weights. ...
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) ...
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 ...
The ones that gave me the most trouble were the "new-style" BIONICLE axle connectors like this one: It seems that the parts holding the axle ball were much thinner than on the previous versions, and they tended to crack and break from extensive use. It was possible to use some cracked ones, but some broke beyond that.
I have designed some special measuring tooling for my previous employer that uses strain gauges, but is is not always that easy. You need for sure: an amplifier, glue them on the construction in the correct orientation 2 strain gauges on both sides for temperture compesation a way to calibrate the measuring device or construction this resulted for us ...
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