BCN3D Sigma Solder Contact Cover

With metal plates on your BCN3D Sigma like geckotek's magnetic plates or aluminum ones it might happen that you shorten the solder contacts on the heat bed upon removal.
The cover prevents such. Just slide it over and you're done, add a few adhesive if you want to be absolutely sure it does not take off mid-print (no must-have).

As an extra benefit you get a useful end-stop when attaching your plate back on.