I recently bought a flashforge from amazon and immediately noticed the annoying sticking four way buttons and thought to myself, "there has to be a better way". Instead of filling the wood down to fit the buttons, one can simply pull the buttons outwards with a pair of needle nose pliers, separate the outer clear plastic from the inner blue plastic and reinstall the button back without the clear outer plastic. the button just snaps back in place no problem. It looks factory, functions much better with no binding, and you dont have to do anything permanent to the machine. have fun!