Flsun Q5 Linear Rail conversion Remix

Thanks to Joolsthebear for this great idea.

- added a 3mm hole to fix the belts with a screw and a nut
- shrinked the existing holes to 3mm for a tight fit
- rounded some corners for easier printing in shown orientation (picture)

I used this rails (MGN12H - 450mm):
https://de.aliexpress.com/item/32954160308.html?spm=a2g0s.9042311.0.0.27424c4dT084CK

And this belts (6mm - 2GT):
https://de.aliexpress.com/item/32853559638.html?spm=a2g0s.9042311.0.0.27424c4d4FHeRB

You also need 21 M3x8mm Screws, 12 M3 T-Nuts and 3 M3 Nuts