Print as many uprights and holders as you need. It should all fit together well!
Edit: make sure to print the holder on its side so it forms a sort of letter 'W' shape on the bed. You may need some spots of super glue to hold the parts in place once assembled.
Controller_base.stl | 8.5KB | |
Controller_holder.stl | 18.6KB | |
Controller_top.stl | 3.8KB | |
Controller_upright.stl | 3.2KB |