Thank you for the Quick answer. I thought about glue but i need to make 20pcs so that would take quite some time.
They will still take it if it is only one one side, but i told them i will try my best to print it on both sides. Also it is a good training, the more difficult thing try the better i will get.
Is there a setting in Cura where i can tell it which one to print first? Cant fint any setting related to that :(