Inspired by this item https://www.thingiverse.com/thing:868641 (thanks mummel) which works great i tried my second fusion 360 construction. It was not easy due to i am still learning how to use this software but the part gets near what i wanted to have.

I have printed it once - please print on the plate and remove plate after print (thanks again to mummel - that is the right way to print these kind of parts - you are great).

If somebody printed this part and it fits (i have no device to try) please leave a comment.

20170704 changed two things after feedback from JK - thank you for trying the part ;-)

• holes are now 3,2mm diameter
• button is 3mm higher