Hi, first, thanks for your work! It is greatly appreciated. :) May I suggest a few things to tweak? Printing in PLA is not optimal, since the model is intended for outdoor use. I printed your model in PETG, but the result is not very good, because of the large support area. There is no reson for the outside to be curved like the Gardena original. If you would just leave it flat, it would print and look flawless. Also the axle is a few mm longer then the drill/hole in the center, so the cap sit's a little to high above the center. Could you make the center hole just a few mm deeper? At last, the hub is not completely round (too little segments), so it does not fit snug. I tried to remix and remedy myself, but failed. :( Greets, Hauser_Ger