After spending much time talking about complicated angle building techniques, let’s look at a much simpler way to build angles. Let’s build it with existing angular parts. Here’s a list of parts with studs that I use to build angles.
You can build 30° angles with this propeller.
Double up the hinge construct to create a sturdy structure.
Technic connectors are very commonly used to create strong angular connections.
You can create finer angles when combining these connectors. You get the difference of the two connectors. See below.
You can make 12.5° and 30° this way.
The turtle in the shadow snapper, shown on the cover picture, is built with a wonderfully done core with lots of angular technic connectors.
Let me know if I missed any interesting parts with an existing angle.