For a lot of custom carpentry, it's pretty common for carpenters to make their own jigs to solve specific problems (e.g., if you need to use your router a bit l

For a lot of custom carpentry, it's pretty common for carpenters to make their own jigs to solve specific problems (e.g., if you need to use your router a bit like a thickness plane to mill down some object by a couple of millimetres along some axis so it fits somewhere, you probably want to build a jig first).