Yes my salt and pepper grinder tops finally gave up the ghost when the metal spindel chewed its way through the square shaped shaft and ultimatley I had to throw the top away but not before I made new tops for them. The pepper top identical to the salt save the PLA colour. The bases still hold up but be carefuly as the have a delicate piece underneath holding the grinding mechanism so dont force it down when you add the top. File the hole square to make sure it slips on nicely. Worth investing in a set of tiny files if you are a 3D printer! Send me a photo if you make one. Again I must get round to photgraphing mine. This took a lot of trial and error to get it right - enjoy!