Extension for No Hardware - IKEA Lack Side Table Extender/Stacker

I wanted to stack a small Lack 55x55 on a bigger lack 55x90
so I made some stacker elements for the side.

I printed the parts from this Thing without support, I suggest printing with support if you are not sure that your printer can handle the bridging.

After Slicing the side stacker part made the connector a ring (see screenshot) - don't know why this happened, but it will work that way as well

You will need every part twice except for the inner connector.

in addition you need two