Hi Sander,
unfortunately I am unable to acces the form. I really would like to help, we own a S5 in our company and I also have one S5 at home, including differnt filaments from ABS to PLA and others. I have acces to Solidworks CAD and studied Mechanical Engineering, so if I can do anything, let me know. We are located near Heidelberg in Germany.
Thanks,
Jonas