Ikea vidga Rail Alignment

The supplied connecting piece for the Ikea Vidga curtain rails was too loose for me, one could see the gap and the rails were not flush. Therefore, I designed a coupling piece with which I can connect the rails properly

The connecting pieces fit positively into the 2 holes next to the mounting chamfer, so there is no room for shifting. You have to push it together with some force. I incorporated fuzzy skin to create an adaptive tolerance range. This way, material can yield and be abraded when attaching the rail, without the coupling piece being too loose afterward

I designed the 2 holes to simplify possible disassembly, but I don't know if that helps. It's probably easier to just grab the thing with pliers and pull it out

My curtain rail has 3 chamfers, I unfortunately don't know if the coupling piece also works for 2- or 1-chamfer rails