The original design of these pins/links by Yasir were great but for some reason my printer wouldn't always print the side holes of the baseplates with the same exact diameter so I snapped quite a few pins trying to insert them.

So instead of constantly resizing in my slicer I thought I would create a version that was 95% the original as I just want something to link the baseplates together not necessarily something super strong. While resizing I decided to change the base shape to be rectangular to make removing easier and just to simplify the design