Hello my hard-working helpers,
I’m struggling with something again. It would be great if someone could help me. I have to build a lid for a cup. The cup is already finished. Now the lid has to go on it and must fit with a click system. Can anyone here help me how to make these little notches? If someone is already there, could you perhaps also check whether I have built the lid correctly so that it fits?
Thank you very much in advance! 
Annabelle
Cup with Lid.3dm (5.0 MB)