Thank you very much for your help, I really appreciate it 
The tabs really help me not to get lost in confusion… and working on the flow of a program, here the 3 sketches have individual variations, but they are exactly the same size, so I guess here it would make sense to do a class, but then I feel I would get lost in the little variations of the formulas, rotateX, rotateY, rotateZ, etc… but I am starting to see eventually of refactoring it but don’t feel able to do it yet…
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