https://www.printables.com/model/931606-parametric-brio-train-tracks

My kids are currently obsessed with trains and I recently made the mistake of printing a track part for them. Now, every time they find themselves short a piece, they come and ask me to print a new one. Not only that, but they want the exact piece they are thinking of.

SO! I made them a parametric file. It's not as intense as modeling from scratch, but not as simple as just asking Dad. There are instructions for changing parameters and you can clone and stack models to make more complex shapes.

It's been a good learning tool for us, so I'm hoping it might help some other train obsessed family.

Note: this specifically follows the brio spec sheet. The pegs and holes have a decent amount of space around them to make fitting easier and allows for some bending of tracks. If you're not using brio, the fits might be a little off, but you can just measure your set and change the parameters for a perfect match.