Hi,
I`ve just noticed your post and wondered how you got on using 3D printer for the switch cap ?
One of the little aerial holder clips has recently broken on my TPR 950 so I`m wondering if a 3D printer would do the job as they are fairly simple parts.
If you managed to make your switch cap sucessfully I might try and find some one here in the U.K. who might make a replacement for me.
cheers,
Martin