Easy solution for a light but solid slider.
3D Printed PETG plastic.
Aluminium profiles sold separately:
For the guide use Aluprofile 20x60 I-Type slot 5, don't forget the machining/thread M5 in the cores
For the cart use Aluprofile 30x120 6N B-Type slot 8, don't forget the machining/thread M8 in the cores