My desk drawer was not as tall (50mm) as the original (70mm) so I modified it to make it work for my drawer. I did all my prints with 0% infill at 0.3mm layer height using a 0.4mm nozzle and had no issues.

I also rotated all couplings such that they were standing up when printing.

EDIT

Added rail ends to allow you to secure rails to the edges without the need to print a bulkier border rail set.

Select Mini v2

No

No

0.3