For laser cutting wood, the laser from a laser cutter. But it's not hand operated as that would be extremely unsafe. Some schools with nice donations or funding will have them. But given how successful many teams have been without it, laser cutting isn't necessary to do well in this event.what kind of laser do you guys use?
Not sure about weights of glues, but I'm sure different glues vary in strength and the amount of contact/glue required for a joint that is strong. Cyanoacrylate (CA), often just called super glue, is very popular because it cures quickly and can be very rigid (depending on the type and amount of contact in a joint you're trying to glue, of course). Since I mentioned it, for joints, there isn't one joint that will work the best for everything, but typically some joints are stronger and others are weaker. End joints are an example of weaker joints. And for glues, there are different consistencies: thick, medium, thin. I'd guess medium is really popular. Thin is really runny and can add to the weight of your bridge easily if you're not careful since the glue can flow down the grain balsa easily, leaving not a lot at the joint.Are different types of glue heavier than others?
I've heard of people getting insulin syringes, washing them out well, and loading them with CA to inject it neatly onto the balsa. Seems like it would solidify too quickly in the syringe, though...Then I need to put on less glue!!!
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