The first design was a simple rectangular box, but that broke pretty much immediately. This one has a rectangular+semicircular section that makes it a lot stronger. Two 3d printed bolts either side of the legs keep the stand in place. Fit any IKEA ANTILOP chair

I made a foot stand/foot rest for a baby high chair. The high chair I've got is the ANTILOP from IKEA, so I designed the foot stand around it, but the model could be easily adapted to other chairs. In my experience it's the most common high chair I've seen in restaurants.

The model prints in two different plates, one with the actual foot stand and one with all the assembly elements. No external parts or tools are required for the assembly.

The actual foot stand is composed of two pieces that fit and slide inside one another. This allows you to set up whichever height you want and always have a continuous foot stand. The stand clips into two lateral rings with dove tails: make sure you assemble it with the foot stand sliding from the top to the bottom, so that it won't come out on its own. You may use glue to fix it permanently, but I like to have it in different parts so that if something breaks it's easier to repair without having to print the entire model from scratch.

It took me ages to get the tolerances right, but it can now print in place and spins freely. The spinny bit is technically a floating surface, but when I print it it sticks to the bottom and comes loose with a bit of pressure. I also had to clean the screw with a Stanley knife to get super smooth action, in spite of printing with extra fine resolution. Why making it? Well, I needed something to use as a necklace and I loved the design challenge, but it can have a few more applications