This balsa tower was 12 inches tall, 8 inches wide at the base, and tapered to a 2 inch square at the top. I only have about forty pounds of sand, so I ended up adding any heavy object in sight to the bucket. After putting in the ceramic mug used to pour the sand, … Read more
This Post Has Been Updated Click Here There are several ways to test model bridges: With a machine By pouring sand Textbooks Pushing down on your bridge Using a machine Obviously, if a machine is being used to test your bridge, there isn’t a lot you can do. You can stand watching the destruction of … Read more
The Bridge Designer is perhaps the greatest online tool for building model bridges. It allows you to design a virtual truss, put a load on in, and it calculates how the forces are spread out. Amazing.
The glue you choose to use on your model bridge (or model airplane) can make or break your structure. I’d venture to say that glue choice is just as important as your wood choice, which makes it pretty important. If you build your bridge with a weak glue, then no matter how good the design is your bridge will not perform well. This article compares and contrasts different types of glues, showing the strengths and weaknesses of each so that you can make an informed choice for what glue to use on your bridge.
I am constantly asked whether Balsa is better than Basswood. Here are some of my notes comparing the two woods. Balsa is cheaper and more available than Basswood. This means you can buy more wood and build more bridges for the same amount of money. Hobby and craft stores seem to sell a larger selection … Read more