A leg clamp to suit Ikea Antilop high chairs. Used to secure a footrest. The top surface is sloped to match the splay of the chair legs. Print one of the pair mirrored to use on both legs.
I printed in PETG and it was more than strong enough. Suspect PLA would work fine.
Uses a M3x4x5 threaded insert and a M3x8mm button head hex screw (a socket head would also be fine).
The author marked this model as their own original creation.