Ikea ODGER chair riser extensions

The models are pre oriented, printing with a brim is necessary. Supports shouldn't be needed, the down facing plateau should bridge without issues.  

The fit is not super snug because I don't want to scratch the legs, since I expect the chair to outlast the need for these risers. I recommend just folding a tiny piece of paper in the gap as you slide on each riser, it will both lock it in place and act as a buffer. 

The load is mostly compressive, but I recommend high infill and printing in PETG or something with good layer adhesion.

The height is 60 mm, but if you need longer or shorter versions just ask and I'll generate them.