Shoe spanner extension for IKEA Sittpinne

Recently I enthusiastically bought a bunch of shoe spanners at IKEA to maintain the shape of my formal shoes in storage. When I got home I realised IKEA's shoe spanners can barely span shoes up to size EU45. My feet happen to be a bit bigger. If you too happen to have big feet and nice shoes, I got you! Get some of these cheap Sittpinne shoe spanners and print this model.

The print profile has 4 options: a size for big shoes and a size for very big shoes, a normal and a fuzzy surface per size. You only need to print 1 plate per Sittpinne, according to your size and liking.

To remove the old knob, just pull it firmly and it will come off. Note that you install the new one, you have to screw it onto the spring. This also allows you to adjust the size of the spanner!

This model was made with OpenSCAD, so it's super easy to change dimensions. If you happen to have a need for even larger extensions, let me know!